Annual mean 10°C · wettest around December · prevailing wind NW
Warmest
22.6 °C
Coldest
0.6 °C
Wettest
35%
Windiest
3.0 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 Thalwil over the whole year is 10°C. July is the hottest month, with highs of about 22°C; January is the coldest, with lows of about -0°C. Thalwil has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 30% in December, the wettest. Winds in Thalwil are highest in March, averaging 2.4 m/s (9 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the NW. The clearest skies in Thalwil come in August, when the sky is typically 52% covered; December is the cloudiest month, at 78%.
Month by month Thalwil 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
27%
75%
2.3 m/s
0
0
7
February
5°C
1°C
1°C
23%
66%
2.3 m/s
0
0
19
March
8°C
2°C
4°C
25%
61%
2.4 m/s
2
0
35
April
12°C
5°C
9°C
22%
57%
2.3 m/s
22
0
60
May
15°C
9°C
13°C
28%
62%
2.2 m/s
43
3
72
June
21°C
15°C
20°C
24%
52%
2.0 m/s
70
23
59
July
22°C
16°C
21°C
24%
53%
1.9 m/s
73
31
51
August
22°C
15°C
22°C
21%
52%
1.8 m/s
66
36
47
September
18°C
11°C
17°C
21%
55%
1.7 m/s
61
11
71
October
13°C
8°C
11°C
20%
61%
1.8 m/s
29
0
73
November
6°C
4°C
3°C
26%
74%
2.0 m/s
1
0
28
December
3°C
1°C
-1°C
30%
78%
2.2 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 Thalwil weather by season
Year round, Thalwil has days of about 2°C at their warmest in January, its coolest month, and 22°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.
Thalwil weather in winterDecember to February
High 3°CLow 1°CRain 27%
Winter in Thalwil has typical daily highs of about 3°C and lows of about 1°C, with a 27% chance of rain on a given day.
Thalwil weather in springMarch to May
High 12°CLow 6°CRain 25%
Spring in Thalwil has typical daily highs of about 12°C and lows of about 6°C, with a 25% chance of rain on a given day.
Thalwil weather in summerJune to August
High 22°CLow 15°CRain 23%
Summer in Thalwil has typical daily highs of about 22°C and lows of about 15°C, with a 23% chance of rain on a given day.
Thalwil weather in autumnSeptember to November
High 12°CLow 8°CRain 22%
Autumn in Thalwil has typical daily highs of about 12°C and lows of about 8°C, with a 22% chance of rain on a given day.
When is the rainy season in Thalwil?
Thalwil has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 30% in December, the wettest.
What time of year is Thalwil windiest?
Winds in Thalwil are highest in March, averaging 2.4 m/s (9 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the NW.
What is the average temperature in Thalwil year round?
The average temperature in Thalwil over the whole year is 10°C. July is the hottest month, with highs of about 22°C; January is the coldest, with lows of about -0°C.