Santa Cruz, California Climate by Month
Santa Cruz, California, United States
Warm summers and cool winters, with most rain from December to March.
The climate in Santa Cruz is one of warm summers and cool winters, with most rain from December to March. Expect highs of 77°F (25°C) in September and 61°F (16°C) in December, with the coldest nights (December) near 40°F (4°C). It gets 30 in (754 mm) of rain a year, 73% of it from December to March. June to September are almost completely dry.
- Warmest month
- 77°F(25°C)
- Average high, September
- Coldest nights
- 40°F(4°C)
- Average low, December
- Rain per year
- 30 in(754 mm)
- Wettest: January
- Humidity
- 72%
- Sunniest: June
Best and worst months in Santa Cruz
Best for weatherJune to August are the best time for weather in Santa Cruz: highs near 76°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 (17°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 July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Santa Cruz weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 62°F(17°C) | 41°F(5°C) | 6.1 in(155 mm) | 77% | 2.1 |
| FebFebruary | 63°F(17°C) | 42°F(6°C) | 5.9 in(150 mm) | 73% | 2.8 |
| MarMarch | 65°F(18°C) | 44°F(7°C) | 4.3 in(108 mm) | 76% | 4.3 |
| AprApril | 69°F(20°C) | 45°F(7°C) | 2.1 in(54 mm) | 70% | 5.5 |
| MayMay | 71°F(22°C) | 48°F(9°C) | 0.8 in(20 mm) | 69% | 6.4 |
| JunJuneBest | 74°F(24°C) | 51°F(10°C) | 0.2 in(5 mm) | 67% | 7.2 |
| JulJulyBest | 76°F(24°C) | 52°F(11°C) | 0.1 in(3 mm) | 69% | 6.9 |
| AugAugustBest | 76°F(25°C) | 53°F(12°C) | 0.1 in(2 mm) | 72% | 6.3 |
| SepSeptember | 77°F(25°C) | 52°F(11°C) | 0.1 in(3 mm) | 68% | 5.3 |
| OctOctober | 74°F(23°C) | 48°F(9°C) | 1.4 in(36 mm) | 66% | 3.9 |
| NovNovember | 67°F(19°C) | 43°F(6°C) | 3.1 in(80 mm) | 74% | 2.7 |
| DecDecember | 61°F(16°C) | 40°F(4°C) | 5.4 in(138 mm) | 80% | 1.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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