Annual mean 25°C · wettest around September · prevailing wind SW
Warmest
39.1 °C
Coldest
22.4 °C
Wettest
94%
Windiest
4.0 m/s
Prevailing
SW
2.7 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 Hermosillo over the whole year is 25°C. June is the hottest month, with highs of about 38°C; January is the coldest, with lows of about 9°C. The rainy (wet) season in Hermosillo runs from July to March, peaking in September with a 72% chance of rain on a given day. The dry season is April to June; May is the driest month, at 0%. Winds in Hermosillo are highest in July, averaging 3.0 m/s (11 km/h), and lightest in December, at 1.4 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Hermosillo come in May, when the sky is typically 16% covered; July is the cloudiest month, at 54%.
Month by month Hermosillo 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
23°C
9°C
20°C
42%
30%
1.5 m/s
80
15
65
February
25°C
11°C
21°C
49%
37%
1.9 m/s
71
28
52
March
28°C
13°C
24°C
43%
33%
2.1 m/s
68
41
39
April
32°C
18°C
27°C
6%
20%
2.6 m/s
47
64
17
May
34°C
22°C
30°C
0%
16%
2.7 m/s
22
66
6
June
38°C
27°C
37°C
35%
23%
2.9 m/s
2
19
0
July
37°C
30°C
39°C
65%
54%
3.0 m/s
1
5
0
August
37°C
29°C
39°C
61%
47%
2.6 m/s
1
6
0
September
36°C
27°C
37°C
72%
28%
2.3 m/s
3
10
0
October
34°C
21°C
33°C
37%
17%
1.8 m/s
13
40
4
November
29°C
15°C
26°C
39%
30%
1.6 m/s
53
52
25
December
24°C
11°C
21°C
56%
33%
1.4 m/s
79
24
57
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 Hermosillo weather by season
Year round, Hermosillo has days of about 23°C at their warmest in January, its coolest month, and 38°C in June, its warmest; the coolest hours of the day run from 9°C to 30°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around September and least likely around May. 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.
Hermosillo weather in winterDecember to February
High 24°CLow 11°CRain 49%
Winter in Hermosillo has typical daily highs of about 24°C and lows of about 11°C, with a 49% chance of rain on a given day.
Hermosillo weather in springMarch to May
High 31°CLow 18°CRain 17%
Spring in Hermosillo has typical daily highs of about 31°C and lows of about 18°C, with a 17% chance of rain on a given day.
Hermosillo weather in summerJune to August
High 37°CLow 29°CRain 54%
Summer in Hermosillo has typical daily highs of about 37°C and lows of about 29°C, with a 54% chance of rain on a given day.
Hermosillo weather in autumnSeptember to November
High 33°CLow 21°CRain 49%
Autumn in Hermosillo has typical daily highs of about 33°C and lows of about 21°C, with a 49% chance of rain on a given day.
When is the rainy season in Hermosillo?
The rainy (wet) season in Hermosillo runs from July to March, peaking in September with a 72% chance of rain on a given day. The dry season is April to June; May is the driest month, at 0%.
What time of year is Hermosillo windiest?
Winds in Hermosillo are highest in July, averaging 3.0 m/s (11 km/h), and lightest in December, at 1.4 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Hermosillo year round?
The average temperature in Hermosillo over the whole year is 25°C. June is the hottest month, with highs of about 38°C; January is the coldest, with lows of about 9°C.