Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.7 °C
Coldest
0.6 °C
Wettest
31%
Windiest
5.6 m/s
Prevailing
SW
4.3 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 Old Jamestown over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C. Old Jamestown has no sharply defined rainy season: the chance of rain on a given day runs from 27% in September, the driest month, to 35% in April, the wettest. Winds in Old Jamestown are highest in March, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in Old Jamestown come in June, when the sky is typically 30% covered; January is the cloudiest month, at 55%.
Month by month Old 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
2°C
-2°C
-4°C
27%
55%
3.7 m/s
1
0
9
February
5°C
-1°C
0°C
28%
47%
3.8 m/s
7
0
25
March
11°C
5°C
6°C
33%
50%
4.2 m/s
14
0
43
April
17°C
9°C
12°C
35%
44%
4.1 m/s
39
5
62
May
23°C
15°C
21°C
34%
43%
3.3 m/s
61
29
53
June
28°C
21°C
28°C
30%
30%
2.8 m/s
41
56
16
July
29°C
22°C
31°C
31%
32%
2.3 m/s
18
55
5
August
28°C
20°C
30°C
30%
33%
2.2 m/s
34
56
11
September
26°C
16°C
26°C
27%
30%
2.3 m/s
54
52
30
October
19°C
10°C
16°C
29%
39%
3.1 m/s
50
14
62
November
11°C
4°C
7°C
29%
40%
3.3 m/s
18
1
46
December
6°C
1°C
1°C
28%
48%
3.5 m/s
2
0
22
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 Old Jamestown weather by season
Year round, Old Jamestown has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around April and least likely around September. 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.
Old Jamestown weather in winterDecember to February
High 4°CLow -1°CRain 28%
Winter in Old Jamestown has typical daily highs of about 4°C and lows of about -1°C, with a 28% chance of rain on a given day.
Old Jamestown weather in springMarch to May
High 17°CLow 10°CRain 34%
Spring in Old Jamestown has typical daily highs of about 17°C and lows of about 10°C, with a 34% chance of rain on a given day.
Old Jamestown weather in summerJune to August
High 29°CLow 21°CRain 30%
Summer in Old Jamestown has typical daily highs of about 29°C and lows of about 21°C, with a 30% chance of rain on a given day.
Old Jamestown weather in autumnSeptember to November
High 19°CLow 10°CRain 28%
Autumn in Old Jamestown has typical daily highs of about 19°C and lows of about 10°C, with a 28% chance of rain on a given day.
When is the rainy season in Old Jamestown?
Old Jamestown has no sharply defined rainy season: the chance of rain on a given day runs from 27% in September, the driest month, to 35% in April, the wettest.
What time of year is Old Jamestown windiest?
Winds in Old Jamestown are highest in March, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in Old Jamestown year round?
The average temperature in Old Jamestown over the whole year is 14°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.