Annual mean 11°C · wettest around May · prevailing wind SW
Warmest
26.7 °C
Coldest
-2.6 °C
Wettest
36%
Windiest
6.4 m/s
Prevailing
SW
5.4 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 Riverside over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -4°C. Riverside has no sharply defined rainy season: the chance of rain on a given day runs from 28% in February, the driest month, to 32% in May, the wettest. Winds in Riverside are highest in March, averaging 5.4 m/s (19 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the SW. The clearest skies in Riverside come in August, when the sky is typically 46% covered; January is the cloudiest month, at 69%.
Month by month Riverside 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
-4°C
-8°C
28%
69%
5.3 m/s
0
0
1
February
1°C
-3°C
-5°C
28%
59%
5.3 m/s
1
0
7
March
6°C
2°C
0°C
31%
61%
5.4 m/s
3
0
17
April
11°C
7°C
6°C
31%
60%
5.3 m/s
16
0
39
May
18°C
13°C
15°C
32%
57%
4.6 m/s
44
11
58
June
24°C
19°C
23°C
29%
48%
4.3 m/s
59
34
43
July
27°C
21°C
27°C
30%
47%
3.7 m/s
53
52
23
August
26°C
20°C
26°C
29%
46%
3.8 m/s
59
49
28
September
23°C
17°C
21°C
29%
48%
4.1 m/s
67
27
54
October
16°C
10°C
11°C
32%
54%
4.8 m/s
33
4
59
November
7°C
3°C
2°C
29%
58%
5.1 m/s
5
0
24
December
2°C
-1°C
-4°C
31%
66%
5.1 m/s
0
0
6
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 Riverside weather by season
Year round, Riverside has days of about -2°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -4°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 May and least likely around February. 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.
Riverside weather in winterDecember to February
High 0°CLow -3°CRain 29%
Winter in Riverside has typical daily highs of about 0°C and lows of about -3°C, with a 29% chance of rain on a given day.
Riverside weather in springMarch to May
High 12°CLow 7°CRain 31%
Spring in Riverside has typical daily highs of about 12°C and lows of about 7°C, with a 31% chance of rain on a given day.
Riverside weather in summerJune to August
High 26°CLow 20°CRain 29%
Summer in Riverside has typical daily highs of about 26°C and lows of about 20°C, with a 29% chance of rain on a given day.
Riverside weather in autumnSeptember to November
High 15°CLow 10°CRain 30%
Autumn in Riverside has typical daily highs of about 15°C and lows of about 10°C, with a 30% chance of rain on a given day.
When is the rainy season in Riverside?
Riverside has no sharply defined rainy season: the chance of rain on a given day runs from 28% in February, the driest month, to 32% in May, the wettest.
What time of year is Riverside windiest?
Winds in Riverside are highest in March, averaging 5.4 m/s (19 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the SW.
What is the average temperature in Riverside year round?
The average temperature in Riverside over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -4°C.