Annual mean 11°C · wettest around December · prevailing wind NW
Warmest
22.8 °C
Coldest
1.2 °C
Wettest
39%
Windiest
3.2 m/s
Prevailing
NW
2.6 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 Rorschach over the whole year is 11°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 1°C. Rorschach has no sharply defined rainy season: the chance of rain on a given day runs from 24% in October, the driest month, to 35% in December, the wettest. Winds in Rorschach are highest in March, averaging 2.5 m/s (9 km/h), and lightest in September, at 1.8 m/s (6 km/h). The prevailing wind is from the NW. The clearest skies in Rorschach come in August, when the sky is typically 54% covered; December is the cloudiest month, at 77%.
Month by month Rorschach 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
-1°C
31%
75%
2.2 m/s
0
0
8
February
5°C
2°C
2°C
27%
68%
2.4 m/s
0
0
18
March
9°C
3°C
4°C
28%
61%
2.5 m/s
1
0
34
April
13°C
6°C
9°C
26%
60%
2.4 m/s
17
0
63
May
16°C
11°C
14°C
33%
64%
2.3 m/s
44
2
75
June
22°C
16°C
21°C
28%
56%
2.2 m/s
75
21
61
July
23°C
17°C
22°C
28%
56%
2.1 m/s
78
29
53
August
23°C
16°C
22°C
26%
54%
1.9 m/s
73
33
49
September
18°C
12°C
17°C
25%
55%
1.8 m/s
64
8
74
October
13°C
9°C
11°C
24%
62%
1.9 m/s
26
0
74
November
7°C
5°C
4°C
30%
75%
2.1 m/s
1
0
32
December
4°C
2°C
0°C
35%
77%
2.2 m/s
0
0
11
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 Rorschach weather by season
Year round, Rorschach has days of about 3°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from 1°C to 17°C through the year, and the average temperature over the year is 11°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.
Rorschach weather in winterDecember to February
High 4°CLow 1°CRain 31%
Winter in Rorschach has typical daily highs of about 4°C and lows of about 1°C, with a 31% chance of rain on a given day.
Rorschach weather in springMarch to May
High 13°CLow 7°CRain 29%
Spring in Rorschach has typical daily highs of about 13°C and lows of about 7°C, with a 29% chance of rain on a given day.
Rorschach weather in summerJune to August
High 23°CLow 16°CRain 27%
Summer in Rorschach has typical daily highs of about 23°C and lows of about 16°C, with a 27% chance of rain on a given day.
Rorschach weather in autumnSeptember to November
High 13°CLow 9°CRain 26%
Autumn in Rorschach has typical daily highs of about 13°C and lows of about 9°C, with a 26% chance of rain on a given day.
When is the rainy season in Rorschach?
Rorschach has no sharply defined rainy season: the chance of rain on a given day runs from 24% in October, the driest month, to 35% in December, the wettest.
What time of year is Rorschach windiest?
Winds in Rorschach are highest in March, averaging 2.5 m/s (9 km/h), and lightest in September, at 1.8 m/s (6 km/h). The prevailing wind is from the NW.
What is the average temperature in Rorschach year round?
The average temperature in Rorschach over the whole year is 11°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 1°C.