Annual mean 11°C · wettest around March · prevailing wind SW
Warmest
21.1 °C
Coldest
6.0 °C
Wettest
39%
Windiest
5.4 m/s
Prevailing
SW
4.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Cwmbran over the whole year is 11°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about 4°C. Cwmbran has no sharply defined rainy season: the chance of rain on a given day runs from 21% in July, the driest month, to 35% in March, the wettest. Winds in Cwmbran are highest in February, averaging 4.4 m/s (16 km/h), and lightest in July, at 3.4 m/s (12 km/h). The prevailing wind is from the SW. The clearest skies in Cwmbran come in May, when the sky is typically 52% covered; December is the cloudiest month, at 72%.
Month by month Cwmbran climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
4°C
2°C
26%
67%
3.7 m/s
0
0
17
February
8°C
5°C
3°C
32%
67%
4.4 m/s
0
0
21
March
9°C
5°C
4°C
35%
66%
4.2 m/s
1
0
33
April
12°C
7°C
8°C
25%
56%
4.0 m/s
7
0
54
May
16°C
10°C
12°C
29%
52%
3.7 m/s
32
0
80
June
19°C
14°C
16°C
24%
58%
3.8 m/s
55
5
79
July
20°C
15°C
18°C
21%
57%
3.4 m/s
72
12
74
August
19°C
14°C
17°C
29%
59%
3.5 m/s
70
5
80
September
17°C
12°C
15°C
29%
59%
3.4 m/s
51
3
81
October
14°C
10°C
11°C
30%
64%
3.5 m/s
18
0
77
November
10°C
7°C
6°C
29%
67%
3.5 m/s
1
0
44
December
8°C
6°C
4°C
31%
72%
3.9 m/s
0
0
27
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Cwmbran weather by season
Year round, Cwmbran has days of about 7°C at their warmest in January, its coolest month, and 20°C in July, its warmest; the coolest hours of the day run from 4°C to 15°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around March and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Cwmbran weather in winterDecember to February
High 7°CLow 5°CRain 30%
Winter in Cwmbran has typical daily highs of about 7°C and lows of about 5°C, with a 30% chance of rain on a given day.
Cwmbran weather in springMarch to May
High 12°CLow 7°CRain 29%
Spring in Cwmbran has typical daily highs of about 12°C and lows of about 7°C, with a 29% chance of rain on a given day.
Cwmbran weather in summerJune to August
High 19°CLow 14°CRain 25%
Summer in Cwmbran has typical daily highs of about 19°C and lows of about 14°C, with a 25% chance of rain on a given day.
Cwmbran weather in autumnSeptember to November
High 14°CLow 10°CRain 29%
Autumn in Cwmbran has typical daily highs of about 14°C and lows of about 10°C, with a 29% chance of rain on a given day.
When is the rainy season in Cwmbran?
Cwmbran has no sharply defined rainy season: the chance of rain on a given day runs from 21% in July, the driest month, to 35% in March, the wettest.
What time of year is Cwmbran windiest?
Winds in Cwmbran are highest in February, averaging 4.4 m/s (16 km/h), and lightest in July, at 3.4 m/s (12 km/h). The prevailing wind is from the SW.
What is the average temperature in Cwmbran year round?
The average temperature in Cwmbran over the whole year is 11°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about 4°C.