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Weather warnings may have been issued

St-Athan (nearest observation site to Treharris)

Friday (Friday 19 January 2018)
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
Clear night Light shower day Sunny day Cloudy Sunny intervals Sunny day Sunny day Sunny intervals Sunny day Partly cloudy night Partly cloudy night Clear night Partly cloudy night Partly cloudy night Cloudy Clear night
Temperature (°C)
4.9 ° 4.6 ° 5.7 ° 6.6 ° 6.8 ° 5.8 ° 7.1 ° 5.1 ° 5.9 ° 5.9 ° 5.9 ° 5.4 ° 6.1 ° 6.2 ° 6.4 ° 6.3 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
WNW 16 WNW 11 WNW 16 W 17 W 17 30 WNW 16 34 W 19 34 W 16 34 W 17 W 18 30 W 21 31 W 16 29 W 16 W 14 W 15 W 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG G VG G G G G G VG G G G G G
Humidity Expand
76% 77% 70% 73% 71% 78% 69% 80% 74% 75% 71% 77% 72% 72% 75% 75%
Pressure (hPa) Expand
1010 1010 1010 1011 1010 1010 1010 1010 1010 1010 1010 1010 1010 1010 1009 1009
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R R R R R F F F F R F R F F F F
Sunrise: 08:10 Sunset: 16:39 Moon phase: New
Saturday (Saturday 20 January 2018)
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00
Cloudy Light rain Light rain Drizzle Light rain Drizzle Drizzle Drizzle Light rain
Temperature (°C)
6.5 ° 5.5 ° 5.0 ° 4.7 ° 4.5 ° 4.4 ° 4.2 ° 4.4 ° 5.0 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
WSW 13 W 11 WSW 8 S 3 ESE 7 ESE 8 E 7 E 8 E 8
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G VG M P P P
Humidity Expand
77% 84% 90% 93% 94% 96% 97% 98% 98%
Pressure (hPa) Expand
1008 1007 1006 1004 1003 1001 1000 999 999
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F F F F F F F F F
Sunrise: 08:09 Sunset: 16:41 Moon phase: Waxing crescent

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Usk No 2 8.2 °C
Lowest maximum temperature Lake Vyrnwy SAWS 2.1 °C
Lowest minimum temperature Cardiff Bute Park -1.1 °C
Highest rainfall Capel Curig 4.8 mm
Sunniest St-Athan 4.4 hours

UK extremes

Parameter Location Value
Highest maximum temperature Scilly St Marys 8.9 °C
Lowest maximum temperature Dalwhinnie -0.6 °C
Lowest minimum temperature Drumnadrochit -6.8 °C
Highest rainfall Campbeltown Airport 14.8 mm
Sunniest Lyneham 6.6 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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