Annual mean 11°C · wettest around October · prevailing wind W
Warmest
25.7 °C
Coldest
2.4 °C
Wettest
25%
Windiest
5.3 m/s
Prevailing
W
4.5 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 Harwich over the whole year is 11°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about 0°C. Harwich has no sharply defined rainy season: the chance of rain on a given day runs from 15% in July, the driest month, to 21% in October, the wettest. Winds in Harwich are highest in March, averaging 4.5 m/s (16 km/h), and lightest in August, at 2.9 m/s (10 km/h). The prevailing wind is from the W. The clearest skies in Harwich come in August, when the sky is typically 38% covered; January is the cloudiest month, at 54%.
Month by month Harwich 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
3°C
0°C
-3°C
18%
54%
4.2 m/s
0
0
6
February
4°C
1°C
-2°C
18%
50%
4.0 m/s
0
0
9
March
6°C
2°C
0°C
18%
49%
4.5 m/s
0
0
16
April
11°C
7°C
6°C
19%
50%
4.1 m/s
5
0
41
May
16°C
11°C
12°C
18%
49%
3.7 m/s
33
3
75
June
21°C
16°C
20°C
16%
43%
3.3 m/s
77
19
66
July
25°C
21°C
26°C
15%
43%
3.1 m/s
62
54
29
August
25°C
20°C
26°C
16%
38%
2.9 m/s
66
50
32
September
21°C
17°C
20°C
19%
43%
3.2 m/s
74
21
63
October
17°C
12°C
14°C
21%
49%
3.5 m/s
47
2
75
November
11°C
7°C
6°C
18%
44%
3.9 m/s
10
0
42
December
5°C
2°C
0°C
20%
51%
4.0 m/s
1
0
15
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 Harwich weather by season
Year round, Harwich has days of about 3°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from 0°C to 21°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around October and least likely around July. 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.
Harwich weather in winterDecember to February
High 4°CLow 1°CRain 19%
Winter in Harwich has typical daily highs of about 4°C and lows of about 1°C, with a 19% chance of rain on a given day.
Harwich weather in springMarch to May
High 11°CLow 7°CRain 18%
Spring in Harwich has typical daily highs of about 11°C and lows of about 7°C, with a 18% chance of rain on a given day.
Harwich weather in summerJune to August
High 24°CLow 19°CRain 16%
Summer in Harwich has typical daily highs of about 24°C and lows of about 19°C, with a 16% chance of rain on a given day.
Harwich weather in autumnSeptember to November
High 16°CLow 12°CRain 19%
Autumn in Harwich has typical daily highs of about 16°C and lows of about 12°C, with a 19% chance of rain on a given day.
When is the rainy season in Harwich?
Harwich has no sharply defined rainy season: the chance of rain on a given day runs from 15% in July, the driest month, to 21% in October, the wettest.
What time of year is Harwich windiest?
Winds in Harwich are highest in March, averaging 4.5 m/s (16 km/h), and lightest in August, at 2.9 m/s (10 km/h). The prevailing wind is from the W.
What is the average temperature in Harwich year round?
The average temperature in Harwich over the whole year is 11°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about 0°C.