Use my current location crosshair

St-Athan observations (nearest observation site to Ystrad Mynach)

Ystrad Mynach forecast
Sun 20 Aug 2017
0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100
Cloudy Cloudy Overcast Overcast Overcast Light shower day Drizzle Heavy rain Overcast Overcast Drizzle Drizzle Drizzle
15.3 ° 16.0 ° 15.7 ° 16.2 ° 16.4 ° 16.1 ° 15.3 ° 15.0 ° 15.4 ° 15.5 ° 15.3 ° 15.3 ° 15.5 °
Wind direction, speed & gust (mph) arrow down
SW 5 SSW 3 SSW 5 SSW 6 S 5 S 6 SE 8 SSE 7 SE 10 SE 10 SE 10 SSE 7 SE 6
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG VG E VG VG VG VG M E E M P P
Humidity arrow down
77% 75% 80% 74% 76% 79% 91% 94% 93% 91% 96% 97% 98%
Pressure (hPa) arrow down
1023 1024 1024 1024 1023 1023 1023 1023 1021 1021 1020 1020 1020
Pressure Tendency (F = Falling, R = Rising, S = Steady) arrow down
R R R R F F F F F F F F F
Mon 21 Aug 2017
0300 0400 0500 0600 0700 0800 0900
Overcast Drizzle Drizzle Drizzle Drizzle Drizzle Overcast
16.6 ° 16.6 ° 16.7 ° 16.7 ° 16.7 ° 16.8 ° 16.7 °
Wind direction, speed & gust (mph) arrow down
W 7 W 7 W 7 W 9 W 10 W 10 W 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M M P P M P G
Humidity arrow down
99% 99% 99% 99% 99% 99% 99%
Pressure (hPa) arrow down
1020 1020 1020 1020 1020 1020 1021
Pressure Tendency (F = Falling, R = Rising, S = Steady) arrow down
R R F S F R R
More detail arrow down

Issued at: 0900 on Mon 21 Aug 2017

= No Data