Annual mean 21°C · wettest around December · prevailing wind W
Warmest
36.7 °C
Coldest
15.7 °C
Wettest
38%
Windiest
4.1 m/s
Prevailing
W
3.3 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 Tucson over the whole year is 21°C. June is the hottest month, with highs of about 36°C; January is the coldest, with lows of about 5°C. The rainy (wet) season in Tucson runs from December to March, peaking in December with a 30% chance of rain on a given day. The dry season is April to June; May is the driest month, at 9%. Winds in Tucson are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.4 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in Tucson come in April, when the sky is typically 6% covered; January is the cloudiest month, at 17%.
Month by month Tucson 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
16°C
5°C
12°C
28%
17%
2.6 m/s
34
0
78
February
18°C
6°C
14°C
27%
16%
3.0 m/s
48
2
76
March
21°C
9°C
16°C
23%
15%
3.2 m/s
60
8
76
April
27°C
13°C
21°C
11%
6%
3.4 m/s
76
29
57
May
30°C
17°C
25°C
9%
7%
3.4 m/s
64
57
31
June
36°C
24°C
32°C
16%
8%
3.3 m/s
15
59
3
July
35°C
26°C
35°C
23%
16%
3.1 m/s
5
33
1
August
35°C
25°C
34°C
21%
16%
2.8 m/s
6
40
1
September
33°C
21°C
31°C
20%
12%
3.0 m/s
20
64
6
October
29°C
15°C
25°C
13%
9%
2.8 m/s
56
55
31
November
23°C
10°C
18°C
18%
9%
2.7 m/s
71
15
70
December
18°C
6°C
14°C
30%
16%
2.4 m/s
46
1
81
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 Tucson weather by season
Year round, Tucson has days of about 16°C at their warmest in January, its coolest month, and 36°C in June, its warmest; the coolest hours of the day run from 5°C to 26°C through the year, and the average temperature over the year is 21°C around the clock. Rain is most likely around December 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.
Tucson weather in winterDecember to February
High 17°CLow 6°CRain 28%
Winter in Tucson has typical daily highs of about 17°C and lows of about 6°C, with a 28% chance of rain on a given day.
Tucson weather in springMarch to May
High 26°CLow 13°CRain 14%
Spring in Tucson has typical daily highs of about 26°C and lows of about 13°C, with a 14% chance of rain on a given day.
Tucson weather in summerJune to August
High 35°CLow 25°CRain 20%
Summer in Tucson has typical daily highs of about 35°C and lows of about 25°C, with a 20% chance of rain on a given day.
Tucson weather in autumnSeptember to November
High 28°CLow 16°CRain 17%
Autumn in Tucson has typical daily highs of about 28°C and lows of about 16°C, with a 17% chance of rain on a given day.
When is the rainy season in Tucson?
The rainy (wet) season in Tucson runs from December to March, peaking in December with a 30% chance of rain on a given day. The dry season is April to June; May is the driest month, at 9%.
What time of year is Tucson windiest?
Winds in Tucson are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.4 m/s (9 km/h). The prevailing wind is from the W.
What is the average temperature in Tucson year round?
The average temperature in Tucson over the whole year is 21°C. June is the hottest month, with highs of about 36°C; January is the coldest, with lows of about 5°C.