Annual mean 23°C · wettest around January · prevailing wind S
Warmest
39.0 °C
Coldest
15.5 °C
Wettest
34%
Windiest
3.8 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 Surprise over the whole year is 23°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 7°C. The rainy (wet) season in Surprise runs from November to March, peaking in January with a 30% chance of rain on a given day. The dry season is April to June; May is the driest month, at 13%. Winds in Surprise are highest in July, averaging 3.3 m/s (12 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the S. The clearest skies in Surprise come in October, when the sky is typically 15% covered; March is the cloudiest month, at 29%.
Month by month Surprise 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
7°C
13°C
30%
28%
2.0 m/s
38
0
83
February
19°C
8°C
15°C
29%
26%
2.5 m/s
54
1
80
March
22°C
11°C
18°C
23%
29%
2.7 m/s
69
10
75
April
28°C
16°C
23°C
19%
18%
3.0 m/s
72
40
45
May
32°C
21°C
27°C
13%
16%
3.1 m/s
49
62
22
June
38°C
27°C
34°C
15%
15%
3.1 m/s
8
46
2
July
39°C
30°C
37°C
26%
27%
3.3 m/s
2
12
1
August
38°C
29°C
37°C
24%
26%
2.9 m/s
2
13
1
September
35°C
25°C
33°C
22%
19%
2.5 m/s
12
40
3
October
30°C
18°C
27°C
20%
15%
2.2 m/s
48
60
23
November
23°C
11°C
19°C
26%
20%
2.1 m/s
76
18
69
December
17°C
7°C
14°C
29%
28%
1.9 m/s
49
0
85
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 Surprise weather by season
Year round, Surprise has days of about 16°C at their warmest in January, its coolest month, and 39°C in July, its warmest; the coolest hours of the day run from 7°C to 30°C through the year, and the average temperature over the year is 23°C around the clock. Rain is most likely around January 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.
Surprise weather in winterDecember to February
High 17°CLow 7°CRain 30%
Winter in Surprise has typical daily highs of about 17°C and lows of about 7°C, with a 30% chance of rain on a given day.
Surprise weather in springMarch to May
High 27°CLow 16°CRain 18%
Spring in Surprise has typical daily highs of about 27°C and lows of about 16°C, with a 18% chance of rain on a given day.
Surprise weather in summerJune to August
High 38°CLow 29°CRain 22%
Summer in Surprise has typical daily highs of about 38°C and lows of about 29°C, with a 22% chance of rain on a given day.
Surprise weather in autumnSeptember to November
High 29°CLow 18°CRain 23%
Autumn in Surprise has typical daily highs of about 29°C and lows of about 18°C, with a 23% chance of rain on a given day.
When is the rainy season in Surprise?
The rainy (wet) season in Surprise runs from November to March, peaking in January with a 30% chance of rain on a given day. The dry season is April to June; May is the driest month, at 13%.
What time of year is Surprise windiest?
Winds in Surprise are highest in July, averaging 3.3 m/s (12 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the S.
What is the average temperature in Surprise year round?
The average temperature in Surprise over the whole year is 23°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 7°C.