Annual mean 11°C · wettest around May · prevailing wind N
Warmest
26.5 °C
Coldest
0.8 °C
Wettest
23%
Windiest
3.3 m/s
Prevailing
N
2.7 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Istog over the whole year is 11°C. August is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C. Istog has no sharply defined rainy season: the chance of rain on a given day runs from 9% in August, the driest month, to 20% in May, the wettest. Winds in Istog are highest in February, averaging 2.6 m/s (9 km/h), and lightest in June, at 2.0 m/s (7 km/h). The prevailing wind is from the N. The clearest skies in Istog come in August, when the sky is typically 42% covered; January is the cloudiest month, at 70%.
Month by month Istog 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
-3°C
-2°C
20%
70%
2.3 m/s
0
0
12
February
6°C
-0°C
2°C
15%
66%
2.6 m/s
3
0
29
March
9°C
2°C
5°C
19%
66%
2.5 m/s
10
0
42
April
14°C
6°C
10°C
17%
62%
2.4 m/s
33
2
60
May
17°C
11°C
15°C
20%
63%
2.3 m/s
52
9
68
June
23°C
16°C
22°C
15%
53%
2.0 m/s
59
37
46
July
26°C
17°C
25°C
11%
44%
2.1 m/s
51
44
37
August
26°C
16°C
25°C
9%
42%
2.0 m/s
53
48
36
September
21°C
12°C
19°C
13%
52%
2.1 m/s
60
25
58
October
16°C
7°C
13°C
13%
53%
2.0 m/s
49
3
73
November
9°C
4°C
6°C
19%
67%
2.3 m/s
11
0
46
December
4°C
0°C
0°C
20%
69%
2.3 m/s
1
0
17
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 Istog weather by season
Year round, Istog has days of about 2°C at their warmest in January, its coolest month, and 26°C in August, its warmest; the coolest hours of the day run from -3°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 May and least likely around August. 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.
Istog weather in winterDecember to February
High 4°CLow -1°CRain 18%
Winter in Istog has typical daily highs of about 4°C and lows of about -1°C, with a 18% chance of rain on a given day.
Istog weather in springMarch to May
High 13°CLow 6°CRain 19%
Spring in Istog has typical daily highs of about 13°C and lows of about 6°C, with a 19% chance of rain on a given day.
Istog weather in summerJune to August
High 25°CLow 16°CRain 12%
Summer in Istog has typical daily highs of about 25°C and lows of about 16°C, with a 12% chance of rain on a given day.
Istog weather in autumnSeptember to November
High 15°CLow 8°CRain 15%
Autumn in Istog has typical daily highs of about 15°C and lows of about 8°C, with a 15% chance of rain on a given day.
When is the rainy season in Istog?
Istog has no sharply defined rainy season: the chance of rain on a given day runs from 9% in August, the driest month, to 20% in May, the wettest.
What time of year is Istog windiest?
Winds in Istog are highest in February, averaging 2.6 m/s (9 km/h), and lightest in June, at 2.0 m/s (7 km/h). The prevailing wind is from the N.
What is the average temperature in Istog year round?
The average temperature in Istog over the whole year is 11°C. August is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -3°C.