Annual mean 24°C · wettest around December · prevailing wind S
Warmest
39.4 °C
Coldest
15.9 °C
Wettest
19%
Windiest
3.7 m/s
Prevailing
S
2.9 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 Tempe over the whole year is 24°C. July is the hottest month, with highs of about 40°C; January is the coldest, with lows of about 8°C. Tempe has no sharply defined rainy season: the chance of rain on a given day runs from 4% in May, the driest month, to 14% in December, the wettest. Winds in Tempe are highest in July, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.0 m/s (7 km/h). The prevailing wind is from the S. The clearest skies in Tempe come in June, when the sky is typically 17% covered; March is the cloudiest month, at 32%.
Month by month Tempe 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
8°C
13°C
14%
32%
2.1 m/s
43
0
89
February
19°C
9°C
15°C
12%
29%
2.5 m/s
58
2
84
March
22°C
12°C
18°C
13%
32%
2.8 m/s
73
11
78
April
28°C
17°C
23°C
10%
22%
3.1 m/s
75
44
45
May
32°C
22°C
27°C
4%
18%
3.2 m/s
50
68
20
June
38°C
28°C
34°C
7%
17%
3.1 m/s
6
44
1
July
40°C
31°C
38°C
10%
30%
3.4 m/s
1
10
0
August
38°C
30°C
37°C
11%
30%
3.0 m/s
0
11
0
September
36°C
26°C
34°C
10%
23%
2.7 m/s
9
41
2
October
30°C
19°C
27°C
8%
18%
2.4 m/s
48
63
23
November
23°C
12°C
20°C
11%
24%
2.1 m/s
81
19
71
December
18°C
8°C
14°C
14%
31%
2.0 m/s
54
1
89
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 Tempe weather by season
Year round, Tempe has days of about 17°C at their warmest in January, its coolest month, and 40°C in July, its warmest; the coolest hours of the day run from 8°C to 31°C through the year, and the average temperature over the year is 24°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.
Tempe weather in winterDecember to February
High 18°CLow 8°CRain 13%
Winter in Tempe has typical daily highs of about 18°C and lows of about 8°C, with a 13% chance of rain on a given day.
Tempe weather in springMarch to May
High 27°CLow 17°CRain 9%
Spring in Tempe has typical daily highs of about 27°C and lows of about 17°C, with a 9% chance of rain on a given day.
Tempe weather in summerJune to August
High 39°CLow 29°CRain 9%
Summer in Tempe has typical daily highs of about 39°C and lows of about 29°C, with a 9% chance of rain on a given day.
Tempe weather in autumnSeptember to November
High 30°CLow 19°CRain 10%
Autumn in Tempe has typical daily highs of about 30°C and lows of about 19°C, with a 10% chance of rain on a given day.
When is the rainy season in Tempe?
Tempe has no sharply defined rainy season: the chance of rain on a given day runs from 4% in May, the driest month, to 14% in December, the wettest.
What time of year is Tempe windiest?
Winds in Tempe are highest in July, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.0 m/s (7 km/h). The prevailing wind is from the S.
What is the average temperature in Tempe year round?
The average temperature in Tempe over the whole year is 24°C. July is the hottest month, with highs of about 40°C; January is the coldest, with lows of about 8°C.