Annual mean 10°C · wettest around December · prevailing wind NW
Warmest
23.1 °C
Coldest
0.6 °C
Wettest
30%
Windiest
2.9 m/s
Prevailing
NW
2.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Winterthur over the whole year is 10°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 0°C. Winterthur has no sharply defined rainy season: the chance of rain on a given day runs from 17% in October, the driest month, to 26% in December, the wettest. Winds in Winterthur are highest in January, averaging 2.4 m/s (9 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the NW. The clearest skies in Winterthur come in July, when the sky is typically 46% covered; December is the cloudiest month, at 79%.
Month by month Winterthur 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
2°C
0°C
-2°C
24%
77%
2.4 m/s
0
0
7
February
5°C
1°C
1°C
20%
64%
2.4 m/s
0
0
19
March
8°C
2°C
4°C
20%
58%
2.3 m/s
3
0
35
April
13°C
5°C
9°C
19%
52%
2.2 m/s
23
0
62
May
16°C
10°C
13°C
23%
58%
2.1 m/s
44
3
74
June
22°C
15°C
20°C
19%
47%
1.9 m/s
73
23
61
July
23°C
16°C
22°C
19%
46%
1.9 m/s
76
31
54
August
22°C
15°C
22°C
17%
46%
1.7 m/s
68
37
48
September
18°C
11°C
17°C
17%
49%
1.7 m/s
64
11
74
October
13°C
8°C
11°C
17%
60%
1.8 m/s
28
0
74
November
6°C
4°C
3°C
23%
75%
2.0 m/s
1
0
26
December
3°C
1°C
-1°C
26%
79%
2.3 m/s
0
0
8
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 Winterthur weather by season
Year round, Winterthur has days of about 2°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from 0°C to 16°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around December and least likely around October. 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.
Winterthur weather in winterDecember to February
High 3°CLow 1°CRain 23%
Winter in Winterthur has typical daily highs of about 3°C and lows of about 1°C, with a 23% chance of rain on a given day.
Winterthur weather in springMarch to May
High 12°CLow 6°CRain 21%
Spring in Winterthur has typical daily highs of about 12°C and lows of about 6°C, with a 21% chance of rain on a given day.
Winterthur weather in summerJune to August
High 22°CLow 15°CRain 18%
Summer in Winterthur has typical daily highs of about 22°C and lows of about 15°C, with a 18% chance of rain on a given day.
Winterthur weather in autumnSeptember to November
High 12°CLow 8°CRain 19%
Autumn in Winterthur has typical daily highs of about 12°C and lows of about 8°C, with a 19% chance of rain on a given day.
When is the rainy season in Winterthur?
Winterthur has no sharply defined rainy season: the chance of rain on a given day runs from 17% in October, the driest month, to 26% in December, the wettest.
What time of year is Winterthur windiest?
Winds in Winterthur are highest in January, averaging 2.4 m/s (9 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the NW.
What is the average temperature in Winterthur year round?
The average temperature in Winterthur over the whole year is 10°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 0°C.