Annual mean 9°C · wettest around May · prevailing wind SW
Warmest
25.8 °C
Coldest
-4.6 °C
Wettest
70%
Windiest
5.5 m/s
Prevailing
SW
4.4 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 Watertown over the whole year is 9°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -7°C. Watertown has no sharply defined rainy season: the chance of rain on a given day runs from 65% in December, the driest month, to 70% in May, the wettest. Winds in Watertown are highest in April, averaging 4.0 m/s (14 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in Watertown come in July, when the sky is typically 36% covered; January is the cloudiest month, at 62%.
Month by month Watertown 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
-4°C
-7°C
-10°C
66%
62%
3.5 m/s
0
0
0
February
-2°C
-6°C
-8°C
66%
50%
3.7 m/s
0
0
4
March
5°C
-1°C
-1°C
69%
51%
3.8 m/s
1
0
13
April
10°C
4°C
5°C
68%
53%
4.0 m/s
12
0
37
May
18°C
11°C
14°C
70%
48%
3.3 m/s
43
8
62
June
24°C
17°C
22°C
70%
40%
3.0 m/s
64
32
47
July
26°C
19°C
26°C
67%
36%
2.5 m/s
61
51
27
August
25°C
17°C
25°C
69%
39%
2.3 m/s
67
43
35
September
22°C
14°C
20°C
67%
42%
2.6 m/s
66
21
59
October
14°C
7°C
10°C
68%
49%
3.2 m/s
27
3
53
November
6°C
1°C
0°C
66%
51%
3.5 m/s
5
0
19
December
-0°C
-4°C
-6°C
65%
59%
3.5 m/s
0
0
3
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 Watertown weather by season
Year round, Watertown has days of about -4°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -7°C to 19°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around May and least likely around December. 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.
Watertown weather in winterDecember to February
High -2°CLow -6°CRain 65%
Winter in Watertown has typical daily highs of about -2°C and lows of about -6°C, with a 65% chance of rain on a given day.
Watertown weather in springMarch to May
High 11°CLow 4°CRain 69%
Spring in Watertown has typical daily highs of about 11°C and lows of about 4°C, with a 69% chance of rain on a given day.
Watertown weather in summerJune to August
High 25°CLow 18°CRain 68%
Summer in Watertown has typical daily highs of about 25°C and lows of about 18°C, with a 68% chance of rain on a given day.
Watertown weather in autumnSeptember to November
High 14°CLow 7°CRain 67%
Autumn in Watertown has typical daily highs of about 14°C and lows of about 7°C, with a 67% chance of rain on a given day.
When is the rainy season in Watertown?
Watertown has no sharply defined rainy season: the chance of rain on a given day runs from 65% in December, the driest month, to 70% in May, the wettest.
What time of year is Watertown windiest?
Winds in Watertown are highest in April, averaging 4.0 m/s (14 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in Watertown year round?
The average temperature in Watertown over the whole year is 9°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -7°C.