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Valley (nearest observation site to Holyhead)

Monday (Monday 18 September 2017)
17:00 18:00 19:00 20:00 21:00 22:00 23:00
Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast
Temperature (°C)
14.3 ° 13.7 ° 12.7 ° 12.5 ° 12.4 ° 12.7 ° 12.7 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
NW 10 NW 6 WNW 3 NW 3 W 3 WNW 5 W 3
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E E E E E E E
Humidity Expand
63% 64% 79% 81% 80% 81% 82%
Pressure (hPa) Expand
1020 1020 1020 1020 1020 1021 1020
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
S F F R R R R
Sunrise: 06:57 Sunset: 19:28 Moon phase: Waning crescent
Tuesday (Tuesday 19 September 2017)
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
Overcast Cloudy Overcast Clear night Clear night Clear night Clear night Partly cloudy night Sunny intervals Sunny day Sunny day Sunny intervals Sunny intervals Cloudy Cloudy Sunny intervals Sunny intervals
Temperature (°C)
12.0 ° 11.2 ° 10.4 ° 9.4 ° 9.0 ° 8.0 ° 8.6 ° 7.4 ° 8.2 ° 11.8 ° 14.2 ° 14.9 ° 15.6 ° 16.3 ° 17.0 ° 16.1 ° 16.1 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
N 1 NNW 1 NE 1 NW 1 ENE 1 E 2 SE 3 E 3 E 3 SE 6 S 9 S 11 S 14 SSW 15 SSW 16 S 16 SSW 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E VG VG VG VG VG E E E E E E E E E E E
Humidity Expand
85% 89% 91% 96% 96% 97% 95% 97% 93% 89% 83% 79% 76% 76% 67% 71% 74%
Pressure (hPa) Expand
1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1020 1020
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R S R R R F F R R R R R R R S F F
Sunrise: 06:58 Sunset: 19:25 Moon phase: Waning crescent

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Porthmadog 17.3 °C
Lowest maximum temperature Lake Vyrnwy SAWS 13.5 °C
Lowest minimum temperature Swyddffynnon 1.9 °C
Highest rainfall Valley 8.0 mm
Sunniest St-Athan 5.5 hours

UK extremes

Parameter Location Value
Highest maximum temperature Wiggonholt 18.5 °C
Lowest maximum temperature Carterhouse 10.3 °C
Lowest minimum temperature Castlederg 0.3 °C
Highest rainfall Writtle 17.6 mm
Sunniest Thomastown 9.4 hours

About extremes

Highest maximum temperature - (0900 to 2100 on the date shown)

Lowest maximum temperature - (0900 to 2100 on the date shown)

Lowest minimum temperature - (2100 on the previous day to 0900 on the date shown)

Highest rainfall -(2100 on the previous day to 2100 on the date shown)

Sunniest - (2100 on the previous day to 2100 on the date shown)

The information shown is initial data as it is received; observations are subject to final quality control after publication on this website. This is particularly the case for rainfall totals during snow events.

Issued at:

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