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Mona (nearest observation site to Llanddona)

Monday (Monday 18 September 2017)
19:00 20:00 21:00 22:00 23:00
Overcast Overcast Overcast Overcast Overcast
Temperature (°C)
11.7 ° 10.7 ° 11.3 ° 9.8 ° 10.3 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
WNW 3 W 3 W 6 NNE 3 WNW 3
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG G G
Humidity Expand
82% 85% 83% 92% 93%
Pressure (hPa) Expand
1020 1020 1021 1021 1021
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
F R R R R
Sunrise: 06:55 Sunset: 19:26 Moon phase: Waning crescent
Tuesday (Tuesday 19 September 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 15:00 16:00 17:00 18:00 19:00
Overcast Cloudy Cloudy Partly cloudy night Partly cloudy night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Cloudy Cloudy Sunny intervals Sunny intervals Sunny day Sunny day Sunny day
Temperature (°C)
10.1 ° 8.9 ° 9.0 ° 6.8 ° 5.6 ° 5.2 ° 5.0 ° 3.9 ° 7.5 ° 10.6 ° 13.5 ° 15.2 ° 15.5 ° 15.4 ° 15.7 ° 16.4 ° 15.7 ° 15.5 ° 14.3 ° 13.2 °
Show detail Show detail
Wind direction, speed & gust (mph) Expand
NW 2 NW 3 N 1 N 0 N 0 E 1 SSW 2 ENE 1 SSW 2 S 1 SSW 9 SW 10 SSW 11 SW 15 SSW 14 SSW 16 SSW 17 SW 16 SW 17 SSW 14
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG G G G G M M VP G G VG VG VG VG VG VG VG VG VG VG
Humidity Expand
94% 93% 93% 95% 97% 97% 97% 98% 100% 100% 86% 72% 75% 77% 73% 72% 75% 77% 82% 86%
Pressure (hPa) Expand
1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1021 1020 1020 1020 1020
Pressure Tendency (F = Falling, R = Rising, S = Steady) Expand
R F R R S F R R R R R F R R R F F F F F
Sunrise: 06:56 Sunset: 19:23 Moon phase: Waning crescent

– = No Data

Issued at:

Extremes

Wales extremes

Parameter Location Value
Highest maximum temperature Porthmadog 17.3 °C
Lowest maximum temperature Lake Vyrnwy SAWS 13.5 °C
Lowest minimum temperature Swyddffynnon 1.9 °C
Highest rainfall Valley 8.0 mm
Sunniest St-Athan 5.5 hours

UK extremes

Parameter Location Value
Highest maximum temperature Wiggonholt 18.5 °C
Lowest maximum temperature Carterhouse 10.3 °C
Lowest minimum temperature Castlederg 0.3 °C
Highest rainfall Writtle 17.6 mm
Sunniest Thomastown 9.4 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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