Windsor weather by month

Check out Windsor weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Windsor (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-1°C maximum daytime temperature in January in Windsor-1
0°C maximum daytime temperature in February in Windsor0
6°C maximum daytime temperature in March in Windsor6
13°C maximum daytime temperature in April in Windsor13
20°C maximum daytime temperature in May in Windsor20
25°C maximum daytime temperature in June in Windsor25
28°C maximum daytime temperature in July in Windsor28
26°C maximum daytime temperature in August in Windsor26
23°C maximum daytime temperature in September in Windsor23
16°C maximum daytime temperature in October in Windsor16
8°C maximum daytime temperature in November in Windsor8
1°C maximum daytime temperature in December in Windsor1
Min temperature (night-time)
-9°C minimum night-time temperature in January in Windsor-9
-8°C minimum night-time temperature in February in Windsor-8
-3°C minimum night-time temperature in March in Windsor-3
3°C minimum night-time temperature in April in Windsor3
9°C minimum night-time temperature in May in Windsor9
14°C minimum night-time temperature in June in Windsor14
17°C minimum night-time temperature in July in Windsor17
16°C minimum night-time temperature in August in Windsor16
12°C minimum night-time temperature in September in Windsor12
6°C minimum night-time temperature in October in Windsor6
1°C minimum night-time temperature in November in Windsor1
-5°C minimum night-time temperature in December in Windsor-5
Heat & Humidity
No heat & humidity in January in Windsor0
No heat & humidity in February in Windsor0
No heat & humidity in March in Windsor0
No heat & humidity in April in Windsor0
No heat & humidity in May in Windsor0
Low heat & humidity in June in WindsorL
Moderate heat & humidity in July in WindsorM
Low heat & humidity in August in WindsorL
No heat & humidity in September in Windsor0
No heat & humidity in October in Windsor0
No heat & humidity in November in Windsor0
No heat & humidity in December in Windsor0
Sea temperature
3°C sea temperature in January in Windsor3
2°C sea temperature in February in Windsor2
2°C sea temperature in March in Windsor2
4°C sea temperature in April in Windsor4
9°C sea temperature in May in Windsor9
15°C sea temperature in June in Windsor15
21°C sea temperature in July in Windsor21
23°C sea temperature in August in Windsor23
20°C sea temperature in September in Windsor20
15°C sea temperature in October in Windsor15
10°C sea temperature in November in Windsor10
5°C sea temperature in December in Windsor5

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Windsor

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Windsor9
11 hours of daylight per day in February in Windsor11
12 hours of daylight per day in March in Windsor12
13 hours of daylight per day in April in Windsor13
15 hours of daylight per day in May in Windsor15
15 hours of daylight per day in June in Windsor15
15 hours of daylight per day in July in Windsor15
14 hours of daylight per day in August in Windsor14
12 hours of daylight per day in September in Windsor12
11 hours of daylight per day in October in Windsor11
10 hours of daylight per day in November in Windsor10
9 hours of daylight per day in December in Windsor9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Windsor1
UV (maximum) index 2 (Low) in February in Windsor2
UV (maximum) index 4 (Moderate) in March in Windsor4
UV (maximum) index 6 (High) in April in Windsor6
UV (maximum) index 7 (High) in May in Windsor7
UV (maximum) index 8 (Very High) in June in Windsor8
UV (maximum) index 9 (Very High) in July in Windsor9
UV (maximum) index 8 (Very High) in August in Windsor8
UV (maximum) index 6 (High) in September in Windsor6
UV (maximum) index 4 (Moderate) in October in Windsor4
UV (maximum) index 2 (Low) in November in Windsor2
UV (maximum) index 1 (Low) in December in Windsor1

Rainfall in Windsor

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
13 days with some rainfall in January in Windsor13
11 days with some rainfall in February in Windsor11
13 days with some rainfall in March in Windsor13
12 days with some rainfall in April in Windsor12
11 days with some rainfall in May in Windsor11
11 days with some rainfall in June in Windsor11
10 days with some rainfall in July in Windsor10
10 days with some rainfall in August in Windsor10
11 days with some rainfall in September in Windsor11
10 days with some rainfall in October in Windsor10
12 days with some rainfall in November in Windsor12
14 days with some rainfall in December in Windsor14
Average monthly rainfall (mm)
51 mm monthly rainfall in January in Windsor51
51 mm monthly rainfall in February in Windsor51
71 mm monthly rainfall in March in Windsor71
80 mm monthly rainfall in April in Windsor80
74 mm monthly rainfall in May in Windsor74
93 mm monthly rainfall in June in Windsor93
88 mm monthly rainfall in July in Windsor88
84 mm monthly rainfall in August in Windsor84
84 mm monthly rainfall in September in Windsor84
58 mm monthly rainfall in October in Windsor58
75 mm monthly rainfall in November in Windsor75
80 mm monthly rainfall in December in Windsor80

More about Windsor

Windsor by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ontario

ALL sale: Top winter deals on North America hotels

  • Save on hotel stays in North America with Accor
  • ALL-Accor Live Limitless members get extra 10% off
  • Travel before 31st May 2026 (inclusive)
Go to ALL deal >>

Expires at 23:59 on Monday 30th Mar 2026 · View all ALL offers

The climate guide for Ontario (Windsor) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Windsor?

Windsor has a cold climate with hot summers and some rainfall in all months.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Compare Windsor weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Windsor, Ontario, Canada and the UK (London).

Maximum daytime temperature (°C)

Windsor, Ontario, Canada
UK (London)
7
0
7
6
10
13
13
20
17
25
20
28
22
26
22
23
19
16
15
8
10
1
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
-1

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more weather >>

Back to top

More about Ontario

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^