Annual mean 6°C · wettest around April · prevailing wind W
Warmest
26.7 °C
Coldest
-10.9 °C
Wettest
32%
Windiest
7.2 m/s
Prevailing
W
5.9 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 Jamestown over the whole year is 6°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about -13°C. Jamestown has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 26% in April, the wettest. Winds in Jamestown are highest in April, averaging 5.5 m/s (20 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the W. The clearest skies in Jamestown come in July, when the sky is typically 24% covered; January is the cloudiest month, at 55%.
Month by month Jamestown 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
-9°C
-12°C
-16°C
21%
55%
5.1 m/s
0
0
0
February
-8°C
-13°C
-15°C
21%
47%
5.1 m/s
0
0
1
March
1°C
-6°C
-6°C
23%
46%
5.1 m/s
0
0
8
April
8°C
1°C
1°C
26%
45%
5.5 m/s
4
0
25
May
18°C
10°C
13°C
21%
38%
4.9 m/s
42
5
64
June
24°C
16°C
21°C
20%
30%
4.5 m/s
68
29
54
July
26°C
18°C
25°C
21%
24%
3.6 m/s
64
50
35
August
24°C
16°C
23°C
20%
31%
3.5 m/s
73
37
49
September
21°C
11°C
17°C
19%
31%
4.0 m/s
59
12
69
October
11°C
3°C
5°C
15%
40%
4.8 m/s
15
1
42
November
2°C
-4°C
-4°C
14%
48%
5.0 m/s
2
0
11
December
-6°C
-10°C
-13°C
19%
51%
5.2 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 Jamestown weather by season
Year round, Jamestown has days of about -9°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -13°C to 18°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around April and least likely around November. 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.
Jamestown weather in winterDecember to February
High -7°CLow -12°CRain 20%
Winter in Jamestown has typical daily highs of about -7°C and lows of about -12°C, with a 20% chance of rain on a given day.
Jamestown weather in springMarch to May
High 9°CLow 1°CRain 23%
Spring in Jamestown has typical daily highs of about 9°C and lows of about 1°C, with a 23% chance of rain on a given day.
Jamestown weather in summerJune to August
High 25°CLow 17°CRain 20%
Summer in Jamestown has typical daily highs of about 25°C and lows of about 17°C, with a 20% chance of rain on a given day.
Jamestown weather in autumnSeptember to November
High 11°CLow 4°CRain 16%
Autumn in Jamestown has typical daily highs of about 11°C and lows of about 4°C, with a 16% chance of rain on a given day.
When is the rainy season in Jamestown?
Jamestown has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 26% in April, the wettest.
What time of year is Jamestown windiest?
Winds in Jamestown are highest in April, averaging 5.5 m/s (20 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the W.
What is the average temperature in Jamestown year round?
The average temperature in Jamestown over the whole year is 6°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about -13°C.