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Sennybridge (nearest observation site to Glasfynydd (Usk Reservoir))

Sunday (Sunday 17 December 2017)
14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Heavy rain Drizzle Drizzle Heavy rain Heavy rain Drizzle Overcast Overcast Overcast Overcast
Temperature (°C)
8.4 ° 8.5 ° 8.6 ° 8.8 ° 8.9 ° 9.0 ° 8.6 ° 7.7 ° 6.5 ° 5.8 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
WSW 15 WSW 13 W 11 W 9 W 6 17 WNW 3 NW 1 E 2 NNW 2 NNW 2
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
P P VP P P G E E VG VG
Humidity Expand
99% 99% 100% 100% 100% 100% 99% 97% 93% 95%
Pressure (hPa) Expand
1020 1019 1019 1020 1020 1021 1022 1023 1024 1024
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F F F R R R R R R R
Sunrise: 08:18 Sunset: 16:04 Moon phase: New
Monday (Monday 18 December 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
Overcast Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day
Temperature (°C)
4.6 ° 0.8 ° 0.9 ° 0.1 ° 0.4 ° 1.0 ° -0.7 ° -1.3 ° -1.0 ° -1.2 ° 1.6 ° 4.5 ° 6.3 ° 7.5 ° 8.6 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
ENE 2 N 0 N 1 N 0 NE 2 NE 2 ESE 3 SSW 1 SSE 1 NE 1 N 0 SSW 2 W 1 N 0 SW 1
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG VG VG VG VG E E VG E
Humidity Expand
96% 96% 98% 98% 98% 99% 96% 96% 97% 96% 99% 92% 83% 74% 71%
Pressure (hPa) Expand
1025 1026 1027 1027 1028 1028 1029 1030 1030 1031 1032 1032 1032 1032 1031
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R R R R R R R R R R R R R R R
Sunrise: 08:18 Sunset: 16:04 Moon phase: New

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Rhyl 12.1 °C
Lowest maximum temperature Tredegar Bryn Bach Park No 2 8.8 °C
Lowest minimum temperature Usk No 2 -2.4 °C
Highest rainfall Porthmadog 12.4 mm
Sunniest Aberdaron 0.1 hours

UK extremes

Parameter Location Value
Highest maximum temperature Derrylincornahoule 12.4 °C
Lowest maximum temperature Kinbrace 4.6 °C
Lowest minimum temperature Topcliffe -6.9 °C
Highest rainfall Kinlochewe 19.0 mm
Sunniest Manston 2.6 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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