Santa Clarita, CA Climate & Monthly Averages
Santa Clarita has a semi-arid climate. August is the hottest month, averaging 94° by day; January is the coldest at 62°.
Sunshine is a defining feature of Santa Clarita's climate
Santa Clarita runs on a dry-summer rhythm: the warmest months are also the driest. July averages 3 mm (0.1 in) while the wet season peaks in February at 3.1 inches (79 mm). Highs range from 62°F (17°C) to 94°F (34°C).
How sun, temperature and rain fit together
Warmth peaks in August: highs of 94°F (34°C), lows of 69°F (20°C). January is the coolest month, with highs of 62°F (17°C) and lows near 44°F (6°C). 6 months average under 20 mm of rain, the longest unbroken stretch running May through October.
Relative humidity averages 51% across the year, drier than all but 7% of the 3496 cities in our dataset. Days and nights are about 13°C apart on average - wider than 94% of the 3496 cities in our dataset. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 116°F (46°C) and the lowest daily minimum 28°F (-2°C).
More climate facts for Santa Clarita
- Hottest month: August - highs near 94°F (34°C)
- Coldest month: January - highs near 62°F (17°C)
- Decade extremes (2015-2024): 116°F (46°C) high · 28°F (-2°C) low
- Wettest month: February (6 rainy days) · Sunniest: July (13.8 h sun/day)
- Climate type: semi-arid
- Annual swing: 16°C between the average warmest and coolest month · day to night: 13°C
- Months averaging 30°C or hotter: 4
- Average humidity: 51%
The most comfortable sunny-weather window
Best time to visit Santa Clarita
January to May and October is the sweet spot for Santa Clarita - temperatures sit either side of the peak heat rather than in it. Expect 71°F (22°C) in the afternoon and around 5 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in January.
What to pack
Pack for Santa Clarita with lightweight, breathable clothing and serious sun protection. Note the gap between afternoon and night: August pairs 94°F (34°C) with 69°F (20°C).
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 62° | 44° | 6 | 2.9 in | 8.2 h/day | 10.1 h | 19% | 59% |
| February | 65° | 44° | 6 | 3.1 in | 9.1 h/day | 10.9 h | 20% | 55% |
| March | 67° | 47° | 8 | 3.0 in | 10.1 h/day | 11.9 h | 25% | 60% |
| April | 75° | 51° | 4 | 0.9 in | 11.3 h/day | 13.0 h | 12% | 52% |
| May | 77° | 54° | 3 | 0.5 in | 12.5 h/day | 13.9 h | 10% | 59% |
| June | 87° | 62° | 1 | 0.2 in | 13.3 h/day | 14.4 h | 4% | 51% |
| July | 94° | 68° | 1 | 0.1 in | 13.8 h/day | 14.2 h | 3% | 46% |
| August | 94° | 69° | 1 | 0.4 in | 12.7 h/day | 13.4 h | 2% | 45% |
| September | 90° | 65° | 2 | 0.5 in | 11.5 h/day | 12.3 h | 6% | 48% |
| October | 82° | 58° | 2 | 0.3 in | 10.5 h/day | 11.3 h | 6% | 42% |
| November | 71° | 49° | 3 | 0.8 in | 9.4 h/day | 10.3 h | 10% | 41% |
| December | 63° | 44° | 6 | 2.8 in | 8.2 h/day | 9.9 h | 18% | 52% |
Santa Clarita month by month
Each card shows the average high and low. The bar places that month between Santa Clarita's coldest night and warmest afternoon.
January
- Rain
- 6 days
- Sunshine
- 8.2 h
- Daylight
- 10.1 h
February
- Rain
- 6 days
- Sunshine
- 9.1 h
- Daylight
- 10.9 h
March
- Rain
- 8 days
- Sunshine
- 10.1 h
- Daylight
- 11.9 h
April
- Rain
- 4 days
- Sunshine
- 11.3 h
- Daylight
- 13.0 h
May
- Rain
- 3 days
- Sunshine
- 12.5 h
- Daylight
- 13.9 h
June
- Rain
- 1 day
- Sunshine
- 13.3 h
- Daylight
- 14.4 h
July
- Rain
- 1 day
- Sunshine
- 13.8 h
- Daylight
- 14.2 h
August
- Rain
- 1 day
- Sunshine
- 12.7 h
- Daylight
- 13.4 h
September
- Rain
- 2 days
- Sunshine
- 11.5 h
- Daylight
- 12.3 h
October
- Rain
- 2 days
- Sunshine
- 10.5 h
- Daylight
- 11.3 h
November
- Rain
- 3 days
- Sunshine
- 9.4 h
- Daylight
- 10.3 h
December
- Rain
- 6 days
- Sunshine
- 8.2 h
- Daylight
- 9.9 h
Looking for warmer alternatives? Browse warm places by month, or compare Santa Clarita's coolest part of the year: January, December, February.
Seasonal weather under Santa Clarita's sunnier skies
Spring (March through May)
Spring in Santa Clarita is mild and warm, with daytime highs averaging 73°F (23°C) and nights around 51°F (10°C); rain comes on about 14 days over the three months. Daylight is generous - around 11.3 hours of sun a day.
Summer (June through August)
Through summer, Santa Clarita turns very hot: 92°F (33°C) by day, 66°F (19°C) after dark, and precipitation is sparse, near 17 mm (0.7 in) for the season. Daylight is generous - around 13.3 hours of sun a day.
Fall (September through November)
Fall in Santa Clarita brings hot afternoons, with daytime highs averaging 81°F (27°C) and nights around 57°F (14°C); precipitation is sparse, near 1.6 inches (40 mm) for the season. Daylight is generous - around 10.5 hours of sun a day.
Winter (December through February)
Through winter, Santa Clarita is crisp but comfortable: 63°F (17°C) by day, 44°F (7°C) after dark, and rain comes on about 17 days over the three months.
How unusual is Santa Clarita?
- Rain or snow reaches the ground on 40 days a year - fewer wet days than all but 6% of the 3496 cities we track.
- The city sees 10.9 hours of sunshine on an average day - sunnier than 93% of the 3496 cities we track.
- 59% of the year's precipitation falls in its wettest three months - more seasonal than 91% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
Santa Clarita temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.