Temecula, United States experiences average highs of 26°C (79°F) and lows of 12°C (54°F) throughout the year. The climate is relatively dry, with only 4 rainy days per month on average. Sunshine is abundant, averaging about 11 hours per day. Average highs have cooled by 0.9°C (1.6°F) across the available records.
Temecula, United States Weather & Climate 2026
Monthly climate averages for Temecula, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
8.3/10
Best: May, June, September, October
UV Index
6
High
Temperature 26°C / 12°C
Feels Like 25°C / 11°C
Rainy Days 4
Rainfall 31 mm
Sunshine 11 h
Humidity 60%
Wind Speed 13 km/h
Dew Point 11°C
Frost Days 1 days
Hottest Month
34°C
August
Avg Low20°C
Rain1days
Coldest Month
6°C
January
Avg High19°C
Rain6days
Driest Month
1days
June
Avg High30°C
Avg Low16°C
Windiest Month
15 km/h
April (Gusts 34)
Worst Time to Visit
Consider avoiding January due to less favorable weather conditions.
Sun Position
Sunrise 05:40
Daylight 14.4h
Sunset 20:01
Live conditions—
Temecula on the map · live conditions
Temecula, United States
- Continent
- Americas
- Country
- United States
- City
- Temecula
- Population
- 110K
- Elevation
- 310 m
- Coordinates
- 33.49°, -117.15°
Seasonal Breakdown
Spring
Mar–May
Avg High 23°C
Avg Low 10°C
Rain 5 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 33°C
Avg Low 19°C
Rain 1 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 28°C
Avg Low 14°C
Rain 3 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 19°C
Avg Low 6°C
Rain 6 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 19°C / 6°C . Feb: 20°C / 6°C . Mar: 20°C / 8°C . Apr: 24°C / 10°C . May: 25°C / 12°C . Jun: 30°C / 16°C . Jul: 34°C / 20°C . Aug: 34°C / 20°C . Sep: 32°C / 18°C . Oct: 29°C / 14°C . Nov: 24°C / 10°C . Dec: 20°C / 7°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 76 mm. Feb: 68 mm. Mar: 72 mm. Apr: 23 mm. May: 13 mm. Jun: 2 mm. Jul: 2 mm. Aug: 7 mm. Sep: 9 mm. Oct: 11 mm. Nov: 36 mm. Dec: 55 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 66%. Feb: 63%. Mar: 72%. Apr: 64%. May: 68%. Jun: 59%. Jul: 54%. Aug: 54%. Sep: 58%. Oct: 54%. Nov: 52%. Dec: 60%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 13 km/h . Mar: 14 km/h . Apr: 15 km/h . May: 15 km/h . Jun: 14 km/h . Jul: 13 km/h . Aug: 13 km/h . Sep: 13 km/h . Oct: 12 km/h . Nov: 11 km/h . Dec: 11 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 12h. May: 12h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 11h. Oct: 10h. Nov: 9h. Dec: 8h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 4. Mar: UV 6. Apr: UV 7. May: UV 8. Jun: UV 9. Jul: UV 9. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 4.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have cooled by 0.9°C (1.6°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 34°C | Aug · 34°C |
| Coldest month | Jan 2025 · 5°C | Jan · 6°C |
| Wettest month | Nov 2025 · 113 mm | Jan · 76 mm |
| Windiest month | Apr 2025 · 15 km/h | Apr · 15 km/h |
Month-by-Month Weather Table
January
Good 
February
Good March
Good April
Excellent May best
Excellent June best
Excellent July
Good August
Good September best
Excellent October best
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 19°C / 6°C | 16°C / 3°C | 6days (76 mm) Good | 8.3h Good | 66% Muggy | 3.8 Moderate | Good | View Details |
| February | 20°C / 6°C | 17°C / 4°C | 7days (68 mm) Good | 9.1h Good | 63% Muggy | 4.4 Moderate | Good | View Details |
| March | 20°C / 8°C | 18°C / 6°C | 9days (72 mm) Wet | 10.1h Excellent | 72% Muggy | 5.8 High | Good | View Details |
| April | 24°C / 10°C | 23°C / 9°C | 4days (23 mm) Good | 11.5h Excellent | 64% Muggy | 7.3 Very High | Excellent | View Details |
| May best | 25°C / 12°C | 25°C / 12°C | 3days (13 mm) Excellent | 12.3h Excellent | 68% Muggy | 7.9 Very High | Excellent | View Details |
| June best | 30°C / 16°C | 31°C / 16°C | 1days (2 mm) Excellent | 13.3h Excellent | 59% Moderate | 8.5 Very High | Excellent | View Details |
| July | 34°C / 20°C | 35°C / 21°C | 1days (2 mm) Excellent | 13.1h Excellent | 54% Moderate | 8.5 Very High | Good | View Details |
| August | 34°C / 20°C | 35°C / 22°C | 1days (7 mm) Excellent | 12.2h Excellent | 54% Moderate | 8 Very High | Good | View Details |
| September best | 32°C / 18°C | 32°C / 19°C | 2days (9 mm) Excellent | 11.2h Excellent | 58% Moderate | 7 High | Excellent | View Details |
| October best | 29°C / 14°C | 27°C / 13°C | 3days (11 mm) Excellent | 10.2h Excellent | 54% Moderate | 5.7 High | Excellent | View Details |
| November | 24°C / 10°C | 21°C / 7°C | 3days (36 mm) Excellent | 9h Good | 52% Moderate | 4.3 Moderate | Good | View Details |
| December | 20°C / 7°C | 17°C / 4°C | 5days (55 mm) Good | 7.9h Good | 60% Moderate | 3.5 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Temecula are May, June, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Temecula, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Temecula is August, with average daytime highs of 34°C (94°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Temecula is January, with average overnight lows of 6°C (43°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Temecula is January, averaging 76mm of precipitation across 6 rainy days. An umbrella or waterproof jacket is essential.
Temecula receives approximately 128 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Temecula.
The least favorable months to visit Temecula are January, primarily due to less favorable weather conditions. For the best conditions, consider May, June, September, October instead.
The annual average UV index in Temecula is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Temecula is 60%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Temecula rarely sees significant snowfall but does experience frost, averaging 1 frost days during the colder months.
Average wind speeds in Temecula are 13 km/h (8 mph). The windiest month is April with peak winds reaching 15 km/h (9 mph) (gusts up to 34 km/h / 21 mph).
Temecula averages 10 clear-sky days per month with overall cloud cover around 41%. The clearest skies occur in August.
The annual average dew point in Temecula is 11°C (52°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Temecula has a Hot Semi-Arid climate, classified as BSh under the Köppen system. Arid climates have very low rainfall relative to temperature, with large swings between daytime heat and cool nights.
The 'feels like' temperature in Temecula ranges from 11°C (52°F) to 25°C (77°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Temecula. It earns a climate score of 9.5/10 with Excellent.
For June in Temecula, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 30°C (86°F) and 1 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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