Santa Clarita in Summer
In summer (June, July and August), Santa Clarita sees average daytime highs around 86°F and overnight lows near 63°F, with 0.2 in of rain over about 1 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 79°F in early June to 88°F by late August. The sky is clear or mostly clear about 86% of the time across summer, and the air most often feels dry.
Summer is Santa Clarita's 3rd-best season to visit on our travel score. For the whole year in context, see Santa Clarita's year-round climate.
- Avg daytime high
- 86°F
- warmest season of the year
- Avg overnight low
- 63°F
- Rainfall
- 0.2 in
- 1 wet days
- Avg wind
- 4 mph
- Travel score
- 6.8
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Santa Clarita in Summer
Over the season highs climb from about 79°F in early June to 88°F by late August.
A typical summer day in Santa Clarita reaches about 86°F and drops to 63°F overnight. The warmest of the three months is August, the coolest June.
Santa Clarita weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 60° / 41° | 2.8 | 5.7 | 10 | 5.3 |
| Feb | 61° / 42° | 3.2 | 7 | 10.7 | 5.5 |
| Mar | 65° / 44° | 2.2 | 6 | 11.7 | 6.7 |
| Apr | 70° / 48° | 0.8 | 3.5 | 12.8 | 7.9 |
| May | 76° / 53° | 0.4 | 2.1 | 13.8 | 8.8 |
| Jun | 82° / 59° | 0.1 | 0.4 | 14.3 | 8.2 |
| Jul | 87° / 64° | 0.1 | 0.8 | 14.1 | 6.3 |
| Aug | 89° / 65° | 0.0 | 0.2 | 13.3 | 5.9 |
| Sep | 85° / 61° | 0.2 | 0.7 | 12.2 | 7.2 |
| Oct | 77° / 54° | 0.6 | 2.5 | 11.1 | 8.7 |
| Nov | 67° / 46° | 0.7 | 3 | 10.2 | 7.6 |
| Dec | 59° / 40° | 2.0 | 5.2 | 9.7 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 86% of the time across summer.
Chance of precipitation in Summer
Santa Clarita gets around 0.2 in of rain over 1 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 06 min in early June to 12 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 8.0 kWh/m².
Is summer a good time to visit Santa Clarita?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Santa Clarita for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Santa Clarita in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santa Clarita sees daytime highs around 86°F and nights near 63°F. Pack light clothes and sun protection.
Sea temperature near Santa Clarita in Summer
The nearest coast averages about 67°F across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 36 mi away) is warmest in August at about 68°F and coldest in February near 59°F.
It's comfortable for a long swim from Aug 6 to Sep 13 — about 1.3 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 59 | 59 | 59 | 62 | 65 | 67 | 68 | 68 | 66 | 63 | 60 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Bracing |
| Feb | 59 | Bracing |
| Mar | 59 | Bracing |
| Apr | 59 | Cool |
| May | 62 | Cool |
| Jun | 65 | Cool |
| Jul | 67 | Cool |
| Aug | 68 | Refreshing |
| Sep | 68 | Refreshing |
| Oct | 66 | Cool |
| Nov | 63 | Cool |
| Dec | 60 | Cool |
UV index in Santa Clarita in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Clarita peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 5 | 8 | 8 | 11 | 11 | 11 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Air quality in Santa Clarita in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Santa Clarita is worst in December — around 29 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (May, 12 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 18 | 17 | 17 | 15 | 12 | 14 | 25 | 26 | 24 | 18 | 23 | 29 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 17 | Moderate |
| Mar | 17 | Moderate |
| Apr | 15 | Moderate |
| May | 12 | Good |
| Jun | 14 | Moderate |
| Jul | 25 | Moderate |
| Aug | 26 | Moderate |
| Sep | 24 | Moderate |
| Oct | 18 | Moderate |
| Nov | 23 | Moderate |
| Dec | 29 | Moderate |
Where is Santa Clarita?
Santa Clarita sits at 34.4°N, 118.5°W, 1,207 ft above sea level, in United States. The nearest listed city is Stevenson Ranch, 1.9 mi away.
Topography around Santa Clarita
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Santa Clarita.
Within 2 miles, the terrain around Santa Clarita has only modest variations in elevation — a maximum elevation change of 541 ft around an average of 1,302 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,235 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,327 ft.
The land around Santa Clarita is covered by artificial surfaces (47%) and trees (20%) within 2 miles, grassland (34%), shrubs (23%) and artificial surfaces (22%) within 10 miles, and grassland (30%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Santa Clarita (34.3917°, -118.5426°, elevation 1,207 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.