Annual mean 10°C · wettest around December · prevailing wind NW
Warmest
22.8 °C
Coldest
0.9 °C
Wettest
39%
Windiest
3.1 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 Romanshorn 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. Romanshorn 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 Romanshorn are highest in February, averaging 2.5 m/s (9 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the NW. The clearest skies in Romanshorn come in August, when the sky is typically 52% covered; December is the cloudiest month, at 79%.
Month by month Romanshorn 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
-1°C
31%
77%
2.3 m/s
0
0
8
February
5°C
2°C
1°C
28%
68%
2.5 m/s
0
0
18
March
8°C
3°C
4°C
29%
60%
2.5 m/s
1
0
33
April
13°C
6°C
9°C
26%
56%
2.4 m/s
18
0
61
May
16°C
10°C
14°C
33%
62%
2.3 m/s
44
2
75
June
22°C
16°C
21°C
28%
53%
2.1 m/s
75
20
61
July
23°C
16°C
22°C
27%
52%
2.0 m/s
77
29
54
August
22°C
16°C
22°C
25%
52%
1.8 m/s
72
32
50
September
18°C
12°C
17°C
25%
53%
1.8 m/s
63
8
74
October
13°C
9°C
11°C
24%
62%
1.9 m/s
26
0
73
November
7°C
4°C
4°C
31%
76%
2.1 m/s
1
0
30
December
4°C
2°C
-0°C
35%
79%
2.3 m/s
0
0
10
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 Romanshorn weather by season
Year round, Romanshorn 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.
Romanshorn weather in winterDecember to February
High 4°CLow 1°CRain 31%
Winter in Romanshorn has typical daily highs of about 4°C and lows of about 1°C, with a 31% chance of rain on a given day.
Romanshorn weather in springMarch to May
High 12°CLow 6°CRain 29%
Spring in Romanshorn has typical daily highs of about 12°C and lows of about 6°C, with a 29% chance of rain on a given day.
Romanshorn weather in summerJune to August
High 22°CLow 16°CRain 27%
Summer in Romanshorn has typical daily highs of about 22°C and lows of about 16°C, with a 27% chance of rain on a given day.
Romanshorn weather in autumnSeptember to November
High 12°CLow 8°CRain 27%
Autumn in Romanshorn has typical daily highs of about 12°C and lows of about 8°C, with a 27% chance of rain on a given day.
When is the rainy season in Romanshorn?
Romanshorn 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 Romanshorn windiest?
Winds in Romanshorn are highest in February, averaging 2.5 m/s (9 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the NW.
What is the average temperature in Romanshorn year round?
The average temperature in Romanshorn 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.