Close window

This website uses cookies. Read about how we use cookies.

Accept
Weather warnings may have been issued

St-Athan (nearest observation site to Mountain Ash)

Wednesday (Wednesday 17 January 2018)
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
Overcast Sunny intervals Cloudy Sunny intervals Sunny intervals Light shower day Cloudy Overcast Light shower night Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain
Temperature (°C)
6.4 ° 6.6 ° 7.3 ° 7.1 ° 7.1 ° 5.5 ° 7.0 ° 7.0 ° 6.1 ° 5.9 ° 6.3 ° 6.6 ° 7.9 ° 9.5 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
W 22 34 W 22 37 W 23 34 WNW 23 38 W 22 37 WNW 21 39 W 16 29 W 14 29 WSW 17 W 16 WSW 19 32 SSW 14 SW 26 37 WSW 37 56
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G VG G G G M M M M P
Humidity Expand
70% 67% 69% 67% 67% 79% 72% 73% 83% 86% 92% 92% 90% 95%
Pressure (hPa) Expand
1010 1010 1011 1011 1011 1010 1010 1010 1009 1008 1006 1003 999 998
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R R R R R F F F F F F F F F
Sunrise: 08:12 Sunset: 16:36 Moon phase: New
Thursday (Thursday 18 January 2018)
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00
Heavy rain Drizzle Light rain Overcast Cloudy Cloudy Cloudy Partly cloudy night Light shower night Light shower day Sunny intervals
Temperature (°C)
9.8 ° 10.4 ° 10.3 ° 10.2 ° 8.9 ° 7.8 ° 7.4 ° 7.0 ° 7.1 ° 6.6 ° 7.0 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
WSW 33 52 W 36 53 W 34 54 W 32 51 W 30 56 WNW 28 47 WNW 24 43 W 19 36 W 18 31 WNW 21 32 WNW 13 29
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M M G G G G VG G
Humidity Expand
95% 89% 87% 76% 74% 73% 73% 75% 79% 75% 82%
Pressure (hPa) Expand
997 996 996 997 998 999 1001 1001 1002 1003 1003
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F F F F R R R R R R R
Sunrise: 08:11 Sunset: 16:38 Moon phase: New

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Milford Haven C.B. 9.0 °C
Lowest maximum temperature Lake Vyrnwy SAWS 3.1 °C
Lowest minimum temperature Lake Vyrnwy SAWS -0.8 °C
Highest rainfall Llysdinam 15.2 mm
Sunniest Aberdaron 3.9 hours

UK extremes

Parameter Location Value
Highest maximum temperature Scilly St Marys 10.8 °C
Lowest maximum temperature Carterhouse 0.8 °C
Lowest minimum temperature Drumnadrochit -5.0 °C
Highest rainfall Glenanne 20.6 mm
Sunniest Wattisham 6.5 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:

Follow us on

Facebook, Twitter, YouTube, Instagram, Snapchat, or LinkedIn Facebook Follow @metoffice on Twitter YouTube Instagram Snapchat LinkedIn