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Read moreIsle of Portland (Dorset) weather
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Forecast days
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Today. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Heavy rain changing to cloudy in the afternoon. Sunrise: 04:57; Sunset: 21:25. UV: Moderate; Pollution: Low; Pollen: Moderate.
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Saturday 19 June. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Overcast. Sunrise: 04:57; Sunset: 21:25. UV: High; Pollution: Low; Pollen: Very high.
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Sunday 20 June. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius. Light showers changing to cloudy by late morning. Sunrise: 04:57; Sunset: 21:25. UV: High; Pollution: Low; Pollen: Low.
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Monday 21 June. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Light showers changing to cloudy by nighttime. Sunrise: 04:58; Sunset: 21:25. UV: High; Pollution: Low; Pollen: Moderate.
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Tuesday 22 June. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius. Sunny intervals changing to cloudy by lunchtime. Sunrise: 04:58; Sunset: 21:26. UV: High; No pollen data.
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Wednesday 23 June. Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius. Sunny changing to cloudy by lunchtime. Sunrise: 04:58; Sunset: 21:26. UV: High;
Six day forecast for Isle of Portland
Today (18 June 2021)
| Time | Now | 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 | 40% | 40% | 40% | 50% | 80% | 80% | 80% | 50% | 20% | 80% | 20% | 50% | 60% | 60% | 60% | 20% | 10% | 10% | 10% | 10% | <5% | 10% | <5% |
| Temperature in degrees Celsius |
16°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
| Feels like temperature in degrees Celsius | 14° | 13° | 12° | 12° | 11° | 10° | 11° | 11° | 11° | 11° | 12° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° | 13° |
| Wind direction and speed in miles per hour |
NNE
12
|
NNE
16
|
NNE
17
|
NNE
19
|
NNE
22
|
NNE
20
|
NNE
19
|
NNE
20
|
NNE
19
|
NNE
18
|
N
17
|
N
16
|
N
15
|
N
15
|
N
15
|
N
14
|
N
14
|
N
14
|
N
13
|
N
12
|
N
11
|
N
10
|
N
9
|
| Wind gust in miles per hour | 25 | 28 | 29 | 30 | 34 | 34 | 31 | 32 | 30 | 29 | 26 | 25 | 24 | 23 | 23 | 21 | 21 | 20 | 19 | 18 | 17 | 15 | 13 |
| Visibility | M | G | G | M | VG | VG | G | VG | G | M | G | G | G | M | G | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 80% | 82% | 81% | 84% | 85% | 82% | 82% | 82% | 83% | 85% | 85% | 84% | 84% | 84% | 84% | 83% | 81% | 81% | 80% | 80% | 82% | 84% | 84% |
| UV | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - |
Saturday (19 June 2021)
| 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 | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 50% | 10% |
| Temperature in degrees Celsius |
14°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
| Feels like temperature in degrees Celsius | 13° | 12° | 12° | 12° | 13° | 13° | 13° | 12° | 12° |
| Wind direction and speed in miles per hour |
N
7
|
N
8
|
NNE
7
|
ENE
9
|
E
9
|
SE
12
|
ESE
13
|
ESE
14
|
E
15
|
| Wind gust in miles per hour | 12 | 12 | 10 | 12 | 12 | 17 | 19 | 20 | 23 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG | G |
| Humidity | 85% | 86% | 88% | 87% | 81% | 83% | 84% | 87% | 89% |
| UV | - | - | - | 1 | 4 | 6 | 4 | 1 | - |
Sunday (20 June 2021)
| 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% | 60% | 40% | 20% | 10% | 10% | 10% | 10% |
| Temperature in degrees Celsius |
15°
|
15°
|
14°
|
14°
|
15°
|
15°
|
15°
|
14°
|
| Feels like temperature in degrees Celsius | 12° | 13° | 13° | 13° | 13° | 13° | 13° | 13° |
| Wind direction and speed in miles per hour |
E
14
|
ESE
14
|
SE
13
|
S
13
|
S
13
|
S
12
|
SSE
11
|
SE
12
|
| Wind gust in miles per hour | 21 | 20 | 19 | 21 | 22 | 20 | 17 | 17 |
| Visibility | G | M | M | M | VG | G | G | G |
| Humidity | 92% | 96% | 96% | 92% | 82% | 82% | 84% | 90% |
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
Monday (21 June 2021)
| 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 | 50% | 30% | 30% | 40% | 40% | 30% | 50% | 10% |
| Temperature in degrees Celsius |
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
14°
|
| Feels like temperature in degrees Celsius | 13° | 13° | 13° | 13° | 14° | 14° | 14° | 13° |
| Wind direction and speed in miles per hour |
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
11
|
SE
10
|
N
10
|
E
11
|
| Wind gust in miles per hour | 17 | 17 | 19 | 19 | 19 | 17 | 16 | 16 |
| Visibility | G | M | M | M | M | G | M | M |
| Humidity | 93% | 94% | 92% | 90% | 86% | 83% | 83% | 89% |
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
Tuesday (22 June 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
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|
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| Chance of precipitation | 20% | 30% | 10% | 10% | 10% | 10% | 10% | <5% |
| Temperature in degrees Celsius |
14°
|
13°
|
13°
|
13°
|
14°
|
15°
|
14°
|
13°
|
| Feels like temperature in degrees Celsius | 12° | 11° | 11° | 11° | 12° | 12° | 12° | 12° |
| Wind direction and speed in miles per hour |
N
13
|
N
16
|
NNE
17
|
NNE
17
|
NNE
15
|
NNW
16
|
NNW
15
|
NW
13
|
| Wind gust in miles per hour | 20 | 24 | 25 | 27 | 26 | 26 | 23 | 19 |
| Visibility | M | M | M | G | G | VG | VG | VG |
| Humidity | 92% | 92% | 88% | 79% | 72% | 68% | 69% | 78% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
Wednesday (23 June 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | <5% | 10% | 10% | 10% | 10% | 10% | 10% |
| Temperature in degrees Celsius |
13°
|
12°
|
13°
|
15°
|
16°
|
16°
|
15°
|
14°
|
| Feels like temperature in degrees Celsius | 11° | 10° | 11° | 12° | 14° | 14° | 13° | 12° |
| Wind direction and speed in miles per hour |
NNE
12
|
E
12
|
E
12
|
NE
12
|
NNE
11
|
NW
12
|
W
11
|
WNW
11
|
| Wind gust in miles per hour | 17 | 18 | 18 | 21 | 20 | 19 | 17 | 16 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 83% | 87% | 84% | 69% | 62% | 65% | 69% | 80% |
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
WARNING
Flood warnings
Flood alerts in force
for England.
South West England weather forecast
Headline:
Risk of thunder in the east later on Friday.
This Evening and Tonight:
A fine evening with late sunshine in western areas but often cloudy in the east. Staying mostly dry overnight, with cloud gradually thinning through the small hours, allowing for some clear spells. Minimum temperature 9 °C.
Friday:
Starting fine and dry for many, but cloud and showers, some heavy and potentially thundery, move across eastern parts later. Staying largely dry with sunny spells in the west. Breezy. Maximum temperature 20 °C.
Outlook for Saturday to Monday:
Mostly dry on Saturday, but cloudier later with widespread showers moving in overnight. Showers continuing into Sunday with potential thunder. Further showers on Monday, heavy at times and possibly thundery.
Updated:
UK long range weather forecast
Unsettled conditions are likely to continue at the start of this period, with a mixture of sunny spells and scattered heavy showers, and a risk of thunder and perhaps hail. Longer spells of rain are also possible in the north and west. Atlantic air then looks likely to spread across the country from the west through the week, bringing a change to cooler and more changeable conditions. This will likely bring spells of rain or showers interspersed with periods of dry weather and sunny spells. The driest and brightest conditions are likely in the southeast, though further showers or thunderstorms are possible here. Temperatures are likely to recover to near normal by the end of the month.
Updated:
Confidence is low through this period due to mixed and weak signals, but models suggest that usual summertime conditions are most probable. We are likely to see periods of dry, settled and warm weather interspersed with occasional days of thicker cloud, rain and stronger winds. Temperatures are likely to be close to average nationally. Southeastern areas may see some warm or very warm conditions at times, but these probably balanced out by cooler interludes moving in from the west. Overall, rainfall accumulations are expected to be close to average for the time of the year. Whilst southeastern areas may see fewer spells of persistent rain, thunderstorms may develop during warmer periods.
Updated:
Nearest forecasts
- Church Ope Cove (Beach) 1.6 miles
- Portland 2.0 miles
- Fortuneswell 2.6 miles
- Weymouth and Portland 3.4 miles
- Portland Harbour - Sandsfoot Castle (Beach) 5.0 miles
- Weymouth 5.1 miles
- Portland Harbour - Castle Cove (Beach) 5.2 miles
- Weymouth - Central (Beach) 6.1 miles
- Weymouth 6.4 miles
- Bennetts Water Garden 7.0 miles