Annual mean 10°C · wettest around December · prevailing wind NW
Warmest
22.6 °C
Coldest
0.7 °C
Wettest
36%
Windiest
3.1 m/s
Prevailing
NW
2.7 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 Gossau 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. Gossau has no sharply defined rainy season: the chance of rain on a given day runs from 22% in October, the driest month, to 32% in December, the wettest. Winds in Gossau are highest in February, 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 Gossau come in August, when the sky is typically 51% covered; December is the cloudiest month, at 77%.
Month by month Gossau 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
29%
75%
2.3 m/s
0
0
8
February
5°C
2°C
1°C
26%
66%
2.5 m/s
0
0
18
March
8°C
3°C
4°C
27%
59%
2.5 m/s
2
0
34
April
13°C
5°C
9°C
24%
55%
2.4 m/s
19
0
61
May
16°C
10°C
13°C
30%
61%
2.3 m/s
44
2
74
June
21°C
15°C
20°C
26%
53%
2.1 m/s
74
21
62
July
22°C
16°C
21°C
26%
51%
2.0 m/s
77
28
55
August
22°C
15°C
22°C
24%
51%
1.9 m/s
71
33
50
September
18°C
12°C
17°C
23%
53%
1.8 m/s
63
8
74
October
13°C
9°C
11°C
22%
61%
1.9 m/s
27
0
73
November
7°C
4°C
4°C
29%
74%
2.1 m/s
1
0
29
December
3°C
1°C
-0°C
32%
77%
2.3 m/s
0
0
9
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 Gossau weather by season
Year round, Gossau 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.
Gossau weather in winterDecember to February
High 3°CLow 1°CRain 29%
Winter in Gossau has typical daily highs of about 3°C and lows of about 1°C, with a 29% chance of rain on a given day.
Gossau weather in springMarch to May
High 12°CLow 6°CRain 27%
Spring in Gossau has typical daily highs of about 12°C and lows of about 6°C, with a 27% chance of rain on a given day.
Gossau weather in summerJune to August
High 22°CLow 16°CRain 25%
Summer in Gossau has typical daily highs of about 22°C and lows of about 16°C, with a 25% chance of rain on a given day.
Gossau weather in autumnSeptember to November
High 12°CLow 8°CRain 25%
Autumn in Gossau has typical daily highs of about 12°C and lows of about 8°C, with a 25% chance of rain on a given day.
When is the rainy season in Gossau?
Gossau has no sharply defined rainy season: the chance of rain on a given day runs from 22% in October, the driest month, to 32% in December, the wettest.
What time of year is Gossau windiest?
Winds in Gossau are highest in February, 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 Gossau year round?
The average temperature in Gossau 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.