Watsonville Climate by Month
Watsonville, California, United States
Warm summers and cool winters, with most rain from December to March.
Watsonville has warm summers and cool winters, with most rain from December to March. September is the warmest month, with highs around 76°F (24°C); January is the coolest at 62°F (16°C), and nights dip to 40°F (5°C). It gets 22 in (560 mm) of rain a year, 72% of it from December to March. June to September are almost completely dry.
- Warmest month
- 76°F(24°C)
- Average high, September
- Coldest nights
- 40°F(5°C)
- Average low, December
- Rain per year
- 22 in(560 mm)
- Wettest: January
- Humidity
- 71%
- Sunniest: June
Best and worst months in Watsonville
Best for weatherJune, August and September are the best time for weather in Watsonville: highs near 74°F (24°C) and almost no rain.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 62°F (16°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Watsonville weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 62°F(16°C) | 41°F(5°C) | 4.6 in(116 mm) | 77% | 2.1 |
| FebFebruary | 63°F(17°C) | 43°F(6°C) | 3.9 in(99 mm) | 73% | 2.8 |
| MarMarch | 66°F(19°C) | 45°F(7°C) | 3.1 in(80 mm) | 73% | 4.3 |
| AprApril | 69°F(20°C) | 46°F(8°C) | 1.7 in(43 mm) | 69% | 5.5 |
| MayMay | 71°F(22°C) | 49°F(9°C) | 0.5 in(12 mm) | 68% | 6.4 |
| JunJuneBest | 73°F(23°C) | 52°F(11°C) | 0.2 in(4 mm) | 68% | 7.2 |
| JulJuly | 73°F(23°C) | 53°F(11°C) | 0.2 in(4 mm) | 72% | 6.8 |
| AugAugustBest | 74°F(23°C) | 53°F(12°C) | 0.0 in(1 mm) | 75% | 6.3 |
| SepSeptemberBest | 76°F(24°C) | 52°F(11°C) | 0.1 in(3 mm) | 68% | 5.3 |
| OctOctober | 74°F(23°C) | 48°F(9°C) | 1.1 in(27 mm) | 65% | 3.9 |
| NovNovember | 68°F(20°C) | 44°F(7°C) | 2.4 in(62 mm) | 72% | 2.7 |
| DecDecember | 62°F(17°C) | 40°F(5°C) | 4.3 in(109 mm) | 70% | 1.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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