Rialto Weather Year-Round — Best Time to Visit
Rialto, United States has warm weather year-round. The best time to visit is June (score: 99/100). Annual average high: 24.4°C, total rainfall: 400mm.
When is the best time to visit Rialto?
99
June is the best month to visit Rialto with a travel score of 99/100 (Excellent).
Expect highs of 29.5°C, 1 rain days, and 13.8 hours of daily sunshine.
View June weather details →Travel Score by Month
77
Jan
77
Feb
82
Mar
89
Apr
94
May
99
Jun
98
Jul
98
Aug
98
Sep
96
Oct
88
Nov
78
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Rialto each month?
24.4°C
Avg High
11.3°C
Avg Low
400mm
Annual Rain
How much rain does Rialto get?
Rialto receives 400mm of rain annually. The wettest month is typically February with 88mm, while June is the driest.
What is the weather like each month in Rialto?
January
77
17°C
Low: 5°C
6 rain days
Good
February
77
17°C
Low: 5°C
7 rain days
Good
March
82
19°C
Low: 7°C
6 rain days
Excellent
April
89
22°C
Low: 9°C
4 rain days
Excellent
May
94
25°C
Low: 12°C
3 rain days
Excellent
June
Best time to visit99
30°C
Low: 15°C
1 rain days
Excellent
July
98
33°C
Low: 19°C
2 rain days
Excellent
August
98
34°C
Low: 20°C
2 rain days
Excellent
September
98
32°C
Low: 17°C
2 rain days
Excellent
October
96
27°C
Low: 13°C
2 rain days
Excellent
November
88
21°C
Low: 8°C
3 rain days
Excellent
December
78
17°C
Low: 5°C
5 rain days
Good
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What cities are near Rialto?
Data based on 1994–2024 averages · Last updated: 2024-12-31