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Weather warnings may have been issued

St-Athan (nearest observation site to Henllys)

Saturday (Saturday 20 January 2018)
13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Sleet shower Light rain Cloudy Overcast Cloudy Partly cloudy night Cloudy Cloudy Cloudy Partly cloudy night Cloudy
Temperature (°C)
6.3 ° 8.8 ° 9.2 ° 9.3 ° 8.6 ° 7.7 ° 7.4 ° 4.0 ° 3.6 ° 1.9 ° 1.8 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
S 2 W 14 25 W 16 W 21 30 WNW 22 30 NW 15 33 WNW 11 NE 6 NNE 7 ENE 7 SSW 1
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
P M M G G VG G E E G M
Humidity Expand
98% 99% 97% 88% 88% 83% 86% 89% 91% 93% 94%
Pressure (hPa) Expand
997 997 998 999 1001 1003 1005 1007 1009 1010 1012
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F F F R R R R R R R R
Sunrise: 08:07 Sunset: 16:40 Moon phase: Waxing crescent
Sunday (Sunday 21 January 2018)
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
Overcast Mist Overcast Light shower night Overcast Overcast Drizzle Drizzle Heavy rain Sleet shower Sleet shower Sleet shower Sleet shower Heavy rain
Temperature (°C)
2.0 ° 2.1 ° 2.8 ° 2.9 ° 3.1 ° 3.2 ° 3.1 ° 3.5 ° 3.8 ° 3.9 ° 4.3 ° 4.8 ° 5.4 ° 5.5 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
ENE 5 E 7 E 7 E 6 ENE 7 ESE 9 ESE 10 ESE 9 ESE 13 ESE 14 E 10 E 9 NE 6 NE 3
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M M M P P P P P P P P
Humidity Expand
94% 95% 94% 94% 94% 94% 97% 98% 99% 98% 99% 99% 99% 99%
Pressure (hPa) Expand
1012 1013 1013 1014 1014 1013 1013 1012 1011 1011 1010 1010 1009 1009
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R R R R R F F F F F F F F F
Sunrise: 08:06 Sunset: 16:41 Moon phase: Waxing crescent

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Mumbles Head 11.2 °C
Lowest maximum temperature Lake Vyrnwy SAWS 0.4 °C
Lowest minimum temperature Lake Vyrnwy SAWS 0.1 °C
Highest rainfall Aberdaron 8.0 mm
Sunniest Valley 0.9 hours

UK extremes

Parameter Location Value
Highest maximum temperature Exeter Airport 2 12.4 °C
Lowest maximum temperature Kinbrace -3.6 °C
Lowest minimum temperature Dalwhinnie -10.4 °C
Highest rainfall Culdrose 19.2 mm
Sunniest Kinloss 6.4 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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