Annual mean 18°C · wettest around February · prevailing wind W
Warmest
33.6 °C
Coldest
15.8 °C
Wettest
35%
Windiest
3.8 m/s
Prevailing
W
3.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Fontana over the whole year is 18°C. August is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 7°C. The rainy (wet) season in Fontana runs from October to May, peaking in February with a 31% chance of rain on a given day. The dry season is June to September; July is the driest month, at 11%. Winds in Fontana are highest in May, averaging 3.1 m/s (11 km/h), and lightest in December, at 1.8 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Fontana come in August, when the sky is typically 14% covered; March is the cloudiest month, at 39%.
Month by month Fontana 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
17°C
7°C
13°C
30%
32%
2.1 m/s
41
1
81
February
18°C
8°C
14°C
31%
31%
2.3 m/s
47
4
77
March
19°C
9°C
15°C
31%
39%
2.6 m/s
52
6
77
April
23°C
11°C
19°C
24%
32%
2.9 m/s
73
17
72
May
24°C
14°C
21°C
22%
36%
3.1 m/s
78
24
65
June
29°C
18°C
27°C
14%
23%
3.1 m/s
55
57
27
July
33°C
20°C
31°C
11%
14%
3.0 m/s
19
69
3
August
33°C
20°C
31°C
19%
14%
2.7 m/s
17
69
4
September
30°C
18°C
28°C
14%
21%
2.4 m/s
45
59
18
October
27°C
14°C
24°C
21%
20%
2.2 m/s
67
43
44
November
22°C
10°C
18°C
24%
22%
2.0 m/s
72
15
73
December
17°C
7°C
14°C
29%
29%
1.8 m/s
49
1
83
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 Fontana weather by season
Year round, Fontana has days of about 17°C at their warmest in January, its coolest month, and 33°C in August, its warmest; the coolest hours of the day run from 7°C to 20°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around February 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.
Fontana weather in winterDecember to February
High 17°CLow 7°CRain 30%
Winter in Fontana has typical daily highs of about 17°C and lows of about 7°C, with a 30% chance of rain on a given day.
Fontana weather in springMarch to May
High 22°CLow 11°CRain 26%
Spring in Fontana has typical daily highs of about 22°C and lows of about 11°C, with a 26% chance of rain on a given day.
Fontana weather in summerJune to August
High 32°CLow 19°CRain 15%
Summer in Fontana has typical daily highs of about 32°C and lows of about 19°C, with a 15% chance of rain on a given day.
Fontana weather in autumnSeptember to November
High 26°CLow 14°CRain 20%
Autumn in Fontana has typical daily highs of about 26°C and lows of about 14°C, with a 20% chance of rain on a given day.
When is the rainy season in Fontana?
The rainy (wet) season in Fontana runs from October to May, peaking in February with a 31% chance of rain on a given day. The dry season is June to September; July is the driest month, at 11%.
What time of year is Fontana windiest?
Winds in Fontana are highest in May, averaging 3.1 m/s (11 km/h), and lightest in December, at 1.8 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Fontana year round?
The average temperature in Fontana over the whole year is 18°C. August is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 7°C.