+37.6688° · -122.0808° · ELEV 0m
Hayward
United States · California
Monthly weather averages for Hayward, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
September → JanuaryClimate Overview
Hayward has a Mediterranean climate. The warmest month is September (24°C average high) and the coolest is December (14°C).
№ 02
580 mm / yearRainfall by Month
Hayward sees 580 mm of rain a year. The wettest month is December (125 mm); the driest is August (1 mm).
№ 03
May–OctoberBest Time to Visit
May–October
11°C – 24°C · 12.1h sun
The best time to visit Hayward is May–October, when temperatures average 11°C–24°C with 12.1 sunshine hours per day.
Some visitors prefer November–April for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 14.6°C | 6.4°C | 115 mm | 7.3 h | 07:22 | 17:12 |
|---|---|---|---|---|---|---|
| February | 15.5°C | 6.5°C | 88 mm | 8.8 h | 06:58 | 17:47 |
| March | 16.4°C | 8.1°C | 100 mm | 9.5 h | 07:19 | 19:15 |
| April | 17.9°C | 9.6°C | 39 mm | 11.2 h | 06:33 | 19:43 |
| May | 19.7°C | 11.3°C | 19 mm | 12.5 h | 05:58 | 20:10 |
| June | 22.9°C | 13.2°C | 2 mm | 13.2 h | 05:46 | 20:31 |
| July | 23.3°C | 14.1°C | 2 mm | 13.1 h | 05:58 | 20:29 |
| August | 24.0°C | 14.9°C | 1 mm | 12.4 h | 06:24 | 20:01 |
| September | 24.4°C | 14.8°C | 6 mm | 11.4 h | 06:50 | 19:17 |
| October | 22.6°C | 12.7°C | 27 mm | 9.8 h | 07:16 | 18:31 |
| November | 17.4°C | 8.5°C | 56 mm | 8.5 h | 06:48 | 16:57 |
| December | 13.9°C | 6.4°C | 125 mm | 6.8 h | 07:16 | 16:50 |