+34.1064° · -117.3703° · ELEV 0m
Rialto
United States · California
Monthly weather averages for Rialto, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
August → JanuaryClimate Overview
Rialto has a Mediterranean climate. The warmest month is August (35°C average high) and the coolest is December (17°C).
№ 02
485 mm / yearRainfall by Month
Rialto sees 485 mm of rain a year. The wettest month is January (109 mm); the driest is June (3 mm).
№ 03
April–MayBest Time to Visit
April–May
11°C – 26°C · 12.1h sun
The best time to visit Rialto is April–May, when temperatures average 11°C–26°C with 12.1 sunshine hours per day.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 17.7°C | 6.7°C | 109 mm | 8.4 h | 06:54 | 17:02 |
|---|---|---|---|---|---|---|
| February | 18.9°C | 6.7°C | 71 mm | 9.3 h | 06:34 | 17:33 |
| March | 20.0°C | 8.3°C | 87 mm | 10.4 h | 07:00 | 18:56 |
| April | 24.1°C | 10.7°C | 26 mm | 11.6 h | 06:18 | 19:20 |
| May | 25.5°C | 12.4°C | 18 mm | 12.7 h | 05:47 | 19:43 |
| June | 31.3°C | 16.2°C | 3 mm | 13.7 h | 05:37 | 20:02 |
| July | 34.7°C | 19.9°C | 7 mm | 13.7 h | 05:48 | 20:01 |
| August | 34.9°C | 20.5°C | 12 mm | 12.7 h | 06:10 | 19:37 |
| September | 32.4°C | 18.3°C | 11 mm | 11.6 h | 06:32 | 18:56 |
| October | 27.9°C | 14.4°C | 18 mm | 10.6 h | 06:54 | 18:15 |
| November | 22.4°C | 9.8°C | 39 mm | 9.5 h | 06:22 | 16:46 |
| December | 17.1°C | 6.9°C | 84 mm | 8.1 h | 06:47 | 16:41 |
Nearby cities
View monthly climate averages for nearby cities or compare them with Rialto.
- 31 km
- 36 km
- 48 km
- 53 km
- 57 km
Temperature, rainfall and sunshine, month by month.