Annual mean 13°C · wettest around May · prevailing wind W
Warmest
29.7 °C
Coldest
3.1 °C
Wettest
64%
Windiest
4.6 m/s
Prevailing
W
3.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Winchester over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C. Winchester has no sharply defined rainy season: the chance of rain on a given day runs from 61% in November, the driest month, to 65% in May, the wettest. Winds in Winchester are highest in March, averaging 3.2 m/s (12 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Winchester come in July, when the sky is typically 35% covered; May is the cloudiest month, at 53%.
Month by month Winchester 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
3°C
-1°C
-2°C
62%
52%
2.9 m/s
2
0
12
February
6°C
1°C
2°C
63%
48%
2.9 m/s
5
0
23
March
11°C
3°C
6°C
62%
44%
3.2 m/s
14
0
41
April
16°C
8°C
12°C
63%
46%
3.0 m/s
37
6
58
May
21°C
13°C
19°C
65%
53%
2.2 m/s
56
22
56
June
26°C
18°C
26°C
62%
39%
2.1 m/s
54
46
29
July
29°C
21°C
30°C
63%
35%
1.8 m/s
24
58
6
August
28°C
19°C
29°C
62%
40%
1.6 m/s
38
57
13
September
24°C
15°C
24°C
63%
44%
1.7 m/s
63
38
40
October
18°C
10°C
16°C
62%
43%
2.0 m/s
51
12
66
November
11°C
4°C
7°C
61%
39%
2.4 m/s
15
1
45
December
6°C
1°C
1°C
64%
49%
2.4 m/s
1
0
20
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 Winchester weather by season
Year round, Winchester has days of about 3°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -1°C to 21°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around May and least likely around November. 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.
Winchester weather in winterDecember to February
High 5°CLow 0°CRain 63%
Winter in Winchester has typical daily highs of about 5°C and lows of about 0°C, with a 63% chance of rain on a given day.
Winchester weather in springMarch to May
High 16°CLow 8°CRain 63%
Spring in Winchester has typical daily highs of about 16°C and lows of about 8°C, with a 63% chance of rain on a given day.
Winchester weather in summerJune to August
High 28°CLow 19°CRain 62%
Summer in Winchester has typical daily highs of about 28°C and lows of about 19°C, with a 62% chance of rain on a given day.
Winchester weather in autumnSeptember to November
High 18°CLow 10°CRain 62%
Autumn in Winchester has typical daily highs of about 18°C and lows of about 10°C, with a 62% chance of rain on a given day.
When is the rainy season in Winchester?
Winchester has no sharply defined rainy season: the chance of rain on a given day runs from 61% in November, the driest month, to 65% in May, the wettest.
What time of year is Winchester windiest?
Winds in Winchester are highest in March, averaging 3.2 m/s (12 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Winchester year round?
The average temperature in Winchester over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C.