Castlebay (Na h-Eileanan Siar) weather
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Forecast days
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Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light rain. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light rain. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.
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Friday 22 September. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Light showers changing to cloudy by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data.Friday 22 September. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Light showers changing to cloudy by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data.
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Saturday 23 September. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Cloudy changing to heavy rain by nighttime. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.Saturday 23 September. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Cloudy changing to heavy rain by nighttime. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.
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Sunday 24 September. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.Sunday 24 September. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data.
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Monday 25 September. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Light showers changing to sunny intervals in the afternoon. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data.Monday 25 September. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Light showers changing to sunny intervals in the afternoon. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data.
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Tuesday 26 September. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: ; Sunset: . UV: Moderate;Tuesday 26 September. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: ; Sunset: . UV: Moderate;
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Wednesday 27 September. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Light showers changing to cloudy in the afternoon. Sunrise: ; Sunset: . UV: Low;Wednesday 27 September. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Light showers changing to cloudy in the afternoon. Sunrise: ; Sunset: . UV: Low;
Seven day forecast for Castlebay
| Time | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
60% | 70% | 90% | 90% | 60% | 80% | 50% |
|
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12°
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12°
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11°
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11°
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11°
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11°
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11°
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9° | 9° | 8° | 8° | 8° | 7° | 7° |
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NW
17
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NW
16
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NNW
19
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NNW
19
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NNW
19
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NNW
21
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NNW
21
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|
|
29 | 27 | 31 | 31 | 32 | 34 | 35 |
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|
E | VG | G | M | G | VG | VG |
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Humidity
|
85% | 89% | 90% | 90% | 88% | 87% | 84% |
|
UV
|
1 | 1 | 1 | - | - | - | - |
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
50% | 50% | 80% | 50% | 80% | 40% | 50% | 40% | 40% | 50% | 20% | 40% | 10% | 10% | 10% | 10% | 30% | 10% | 10% | <5% | <5% | <5% | <5% | 10% |
|
|
11°
|
11°
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11°
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11°
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11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
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12°
|
11°
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11°
|
11°
|
11°
|
11°
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10°
|
10°
|
10°
|
10°
|
|
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7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 7° |
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NNW
22
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NNW
22
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NNW
23
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NNW
26
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NNW
25
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NNW
26
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NNW
26
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NNW
26
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NNW
26
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NNW
27
|
NNW
26
|
NNW
26
|
NNW
26
|
NNW
25
|
NNW
26
|
NNW
26
|
NNW
25
|
NNW
23
|
NNW
22
|
NNW
21
|
NNW
19
|
NNW
18
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NNW
17
|
NNW
16
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36 | 35 | 37 | 40 | 40 | 41 | 41 | 42 | 41 | 42 | 40 | 38 | 38 | 37 | 38 | 38 | 37 | 34 | 33 | 32 | 30 | 29 | 27 | 25 |
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VG | VG | G | VG | VG | VG | VG | VG | VG | E | VG | E | E | E | E | E | VG | E | E | E | E | E | E | E |
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Humidity
|
86% | 86% | 86% | 86% | 87% | 83% | 81% | 80% | 78% | 76% | 73% | 70% | 66% | 68% | 66% | 68% | 65% | 63% | 63% | 62% | 63% | 61% | 63% | 66% |
|
UV
|
- | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | - | - | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
10% | 10% | 10% | <5% | <5% | 10% | 10% | 10% | 90% |
|
|
10°
|
10°
|
10°
|
9°
|
11°
|
12°
|
12°
|
12°
|
12°
|
|
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7° | 7° | 8° | 8° | 10° | 10° | 9° | 8° | 7° |
|
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NNW
15
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NNW
14
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NNW
11
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NNW
7
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S
4
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S
10
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SSE
19
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SSE
28
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SSE
34
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24 | 23 | 18 | 11 | 7 | 14 | 27 | 39 | 47 |
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VG | VG | VG | VG | VG | VG | VG | VG | M |
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Humidity
|
64% | 67% | 68% | 68% | 59% | 59% | 63% | 70% | 86% |
|
UV
|
- | - | - | - | 1 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
60% | 50% | 10% | 30% | 40% | 50% | 70% | 60% |
|
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
14°
|
|
|
9° | 10° | 10° | 10° | 11° | 11° | 11° | 10° |
|
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S
29
|
S
27
|
S
26
|
S
25
|
S
24
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S
24
|
S
24
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SSW
25
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|
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39 | 35 | 33 | 33 | 32 | 31 | 32 | 33 |
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G | G | G | G | G | M | G | G |
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Humidity
|
91% | 92% | 93% | 92% | 92% | 92% | 93% | 91% |
|
UV
|
- | - | - | 1 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
40% | 40% | 40% | 40% | 40% | 10% | 10% | 10% |
|
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
|
|
9° | 9° | 8° | 8° | 8° | 9° | 9° | 9° |
|
|
SSW
28
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SSW
30
|
SSW
32
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SSW
34
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SSW
34
|
SSW
34
|
SSW
33
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SSW
32
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37 | 40 | 44 | 46 | 47 | 46 | 44 | 43 |
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VG | VG | VG | G | VG | VG | VG | VG |
|
Humidity
|
88% | 84% | 83% | 82% | 81% | 80% | 81% | 82% |
|
UV
|
- | - | - | 1 | 3 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
30% | 30% | 10% | 10% | 30% | 10% | 10% | 20% |
|
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
|
|
9° | 9° | 9° | 9° | 10° | 10° | 10° | 10° |
|
|
SSW
31
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SSW
29
|
SSW
27
|
SSW
26
|
SSW
25
|
SSW
23
|
SSW
23
|
SSW
23
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42 | 39 | 37 | 35 | 33 | 31 | 30 | 31 |
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G | G | G | G | G | G | G | G |
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Humidity
|
84% | 85% | 85% | 85% | 86% | 85% | 85% | 85% |
|
UV
|
- | - | - | 1 | 3 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
40% | 20% | 40% | 40% | 40% | 20% | 20% | 20% |
|
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
13°
|
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10° | 9° | 9° | 9° | 9° | 9° | 9° | 9° |
|
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SSW
23
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S
24
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S
23
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S
25
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SSW
27
|
SSW
27
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SSW
27
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SSW
26
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31 | 32 | 32 | 34 | 36 | 36 | 36 | 36 |
|
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VG | G | G | G | G | VG | VG | VG |
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Humidity
|
84% | 84% | 85% | 85% | 84% | 83% | 82% | 81% |
|
UV
|
- | - | - | 1 | 2 | 1 | 1 | - |
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail and drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
The arrow shows the direction of the wind (up is north). If the arrow points from land to sea, the wind will be blowing out to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks. These winds can blow you out to sea. Read more about how wind will affect you at the beach.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Moderate) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction of the waves 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel to or pointing away from land, the wave height is likely to be lower on the beach than it is offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
UK video forecast
Highlands & Eilean Siar weather forecast
Headline:
Cool and breezy with showers on Friday.
This Evening and Tonight:
Cloudy with showers or longer spells of rain, the rain most persistent in the west. Winds turning into the northwest, strong around the coast and over Skye and Eilean Siar. Minimum temperature 8 °C.
Friday:
Mostly cloudy with frequent showers, these heavy at times. Feeling chilly in the fresh to strong northwest winds. Maximum temperature 13 °C.
Outlook for Saturday to Monday:
A chilly start on Saturday, then dry and bright. Showers or longer spells of rain on Sunday and Monday, the rain heavy and persistent at times.
Updated:
UK long range weather forecast
Many areas will see a mixture of sunshine and showers on Tuesday, though southeast England may see cloudier skies and outbreaks of rain. Thereafter, a changeable and at times unsettled outlook, with further low pressure areas tracking towards the UK, but with some uncertainty as to their paths at present. These systems could bring periods of heavy rain and strong winds to parts of the country. The wettest and windiest weather is more likely farther north and west. The best chance of drier conditions is across the east and southeast of England and will be closer to high pressure which is more likely to reside over continental Europe. Temperatures are likely to be generally above average, especially in the south.
Updated:
Through early to mid October, generally blocked weather patterns are more likely than average, however there is significant uncertainty around the detail and resultant conditions over the UK. A typical mix of autumnal conditions may occur at times, although drier than average conditions are slightly more likely than wetter than average conditions over this period as a whole. Above average temperatures also continue to be more likely than below average temperatures, although cool nights, along with patchy mist and fog are probable during settled spells.
Updated:
