Annual mean 8°C · wettest around November · prevailing wind W
Warmest
20.1 °C
Coldest
-0.9 °C
Wettest
32%
Windiest
6.2 m/s
Prevailing
W
5.4 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 Sem over the whole year is 8°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about -1°C. Sem has no sharply defined rainy season: the chance of rain on a given day runs from 18% in May, the driest month, to 32% in November, the wettest. Winds in Sem are highest in October, averaging 5.8 m/s (21 km/h), and lightest in July, at 4.6 m/s (17 km/h). The prevailing wind is from the W. The clearest skies in Sem come in April, when the sky is typically 55% covered; November is the cloudiest month, at 71%.
Month by month Sem 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
0°C
-1°C
-6°C
26%
69%
5.7 m/s
0
0
0
February
1°C
-0°C
-5°C
27%
67%
5.6 m/s
0
0
1
March
4°C
1°C
-2°C
25%
63%
5.3 m/s
0
0
5
April
8°C
4°C
3°C
19%
55%
4.9 m/s
2
0
26
May
14°C
9°C
9°C
18%
55%
4.7 m/s
22
1
58
June
18°C
14°C
14°C
22%
56%
4.9 m/s
46
3
72
July
19°C
16°C
17°C
23%
56%
4.6 m/s
61
9
71
August
18°C
14°C
15°C
23%
58%
5.0 m/s
57
2
77
September
15°C
12°C
11°C
26%
64%
5.2 m/s
27
0
71
October
10°C
8°C
5°C
28%
66%
5.8 m/s
1
0
36
November
5°C
4°C
-1°C
32%
71%
5.8 m/s
0
0
9
December
2°C
1°C
-4°C
31%
71%
5.5 m/s
0
0
1
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 Sem weather by season
Year round, Sem has days of about 0°C at their warmest in January, its coolest month, and 19°C in July, its warmest; the coolest hours of the day run from -1°C to 16°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around November and least likely around May. 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.
Sem weather in winterDecember to February
High 1°CLow -0°CRain 28%
Winter in Sem has typical daily highs of about 1°C and lows of about -0°C, with a 28% chance of rain on a given day.
Sem weather in springMarch to May
High 9°CLow 5°CRain 21%
Spring in Sem has typical daily highs of about 9°C and lows of about 5°C, with a 21% chance of rain on a given day.
Sem weather in summerJune to August
High 18°CLow 15°CRain 23%
Summer in Sem has typical daily highs of about 18°C and lows of about 15°C, with a 23% chance of rain on a given day.
Sem weather in autumnSeptember to November
High 10°CLow 8°CRain 29%
Autumn in Sem has typical daily highs of about 10°C and lows of about 8°C, with a 29% chance of rain on a given day.
When is the rainy season in Sem?
Sem has no sharply defined rainy season: the chance of rain on a given day runs from 18% in May, the driest month, to 32% in November, the wettest.
What time of year is Sem windiest?
Winds in Sem are highest in October, averaging 5.8 m/s (21 km/h), and lightest in July, at 4.6 m/s (17 km/h). The prevailing wind is from the W.
What is the average temperature in Sem year round?
The average temperature in Sem over the whole year is 8°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about -1°C.