Calimesa, United States experiences average highs of 24°C (75°F) and lows of 11°C (52°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 stayed broadly stable across the available records.
Calimesa, United States Weather & Climate 2026
Monthly climate averages for Calimesa, 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
7.8/10
Best: May, June, September, October
UV Index
6
High
Temperature 24°C / 11°C
Feels Like 23°C / 9°C
Rainy Days 4
Rainfall 32 mm
Sunshine 11 h
Humidity 50%
Wind Speed 12 km/h
Dew Point 7°C
Snow Days 2 days
Frost Days 3 days
Hottest Month
34°C
August
Avg Low21°C
Rain2days
Coldest Month
4°C
January
Avg High16°C
Rain7days
Driest Month
1days
June
Avg High30°C
Avg Low16°C
Windiest Month
13 km/h
June (Gusts 43)
Worst Time to Visit
Consider avoiding January, February, March, December due to less favorable weather conditions.
Sun Position
Sunrise 05:38
Daylight 14.4h
Sunset 20:02
Live conditions—
Calimesa on the map · live conditions
Calimesa, United States
- Continent
- Americas
- Country
- United States
- City
- Calimesa
- Population
- 8.5K
- Elevation
- 729 m
- Coordinates
- 34.00°, -117.06°
Seasonal Breakdown
Spring
Mar–May
Avg High 22°C
Avg Low 9°C
Rain 6 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 33°C
Avg Low 19°C
Rain 2 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 27°C
Avg Low 13°C
Rain 3 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 17°C
Avg Low 4°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: 16°C / 4°C . Feb: 17°C / 4°C . Mar: 18°C / 6°C . Apr: 23°C / 9°C . May: 24°C / 11°C . Jun: 30°C / 16°C . Jul: 34°C / 21°C . Aug: 34°C / 21°C . Sep: 31°C / 18°C . Oct: 27°C / 13°C . Nov: 22°C / 8°C . Dec: 17°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 73 mm. Feb: 70 mm. Mar: 67 mm. Apr: 22 mm. May: 13 mm. Jun: 3 mm. Jul: 9 mm. Aug: 14 mm. Sep: 11 mm. Oct: 11 mm. Nov: 31 mm. Dec: 54 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 59%. Feb: 57%. Mar: 65%. Apr: 55%. May: 57%. Jun: 45%. Jul: 40%. Aug: 41%. Sep: 46%. Oct: 43%. Nov: 43%. Dec: 53%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 11 km/h . Mar: 12 km/h . Apr: 13 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 13 km/h . Aug: 13 km/h . Sep: 12 km/h . Oct: 11 km/h . Nov: 11 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 12h. May: 13h. 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
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 1 days. Feb: 3 days. Mar: 2 days. Apr: 0 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 0 days. Dec: 1 days.
Climate Trends
Average highs have stayed broadly stable 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 · 3°C | Jan · 4°C |
| Wettest month | Nov 2025 · 98 mm | Jan · 73 mm |
| Windiest month | Jul 2025 · 14 km/h | Jun · 13 km/h |
Month-by-Month Weather Table
January
Fair 
February
Fair March
Fair April
Good May best
Excellent June best
Excellent July
Good August
Good September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 16°C / 4°C | 13°C / 1°C | 7days (73 mm) Good | 8.1h Good | 59% Moderate | 3.9 Moderate | Fair | View Details |
| February | 17°C / 4°C | 15°C / 1°C | 7days (70 mm) Good | 9h Good | 57% Moderate | 4.4 Moderate | Fair | View Details |
| March | 18°C / 6°C | 16°C / 4°C | 10days (67 mm) Wet | 10.1h Excellent | 65% Muggy | 5.8 High | Fair | View Details |
| April | 23°C / 9°C | 21°C / 7°C | 4days (22 mm) Good | 11.7h Excellent | 55% Moderate | 7.4 Very High | Good | View Details |
| May best | 24°C / 11°C | 24°C / 10°C | 3days (13 mm) Excellent | 12.6h Excellent | 57% Moderate | 8.3 Very High | Excellent | View Details |
| June best | 30°C / 16°C | 30°C / 15°C | 1days (3 mm) Excellent | 13.4h Excellent | 45% Moderate | 8.6 Very High | Excellent | View Details |
| July | 34°C / 21°C | 34°C / 21°C | 2days (9 mm) Excellent | 13.1h Excellent | 40% Comfortable | 8.7 Very High | Good | View Details |
| August | 34°C / 21°C | 34°C / 21°C | 2days (14 mm) Excellent | 12.2h Excellent | 41% Moderate | 8.1 Very High | Good | View Details |
| September best | 31°C / 18°C | 30°C / 17°C | 2days (11 mm) Excellent | 11.3h Excellent | 46% Moderate | 7.2 Very High | Excellent | View Details |
| October best | 27°C / 13°C | 25°C / 10°C | 3days (11 mm) Excellent | 10.3h Excellent | 43% Moderate | 5.8 High | Excellent | View Details |
| November | 22°C / 8°C | 19°C / 5°C | 3days (31 mm) Excellent | 9h Good | 43% Moderate | 4.4 Moderate | Good | View Details |
| December | 17°C / 5°C | 14°C / 2°C | 5days (54 mm) Good | 7.8h Good | 53% Moderate | 3.5 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Calimesa are May, June, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Calimesa, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Calimesa is August, with average daytime highs of 34°C (93°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Calimesa is January, with average overnight lows of 4°C (39°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Calimesa is January, averaging 73mm of precipitation across 7 rainy days. An umbrella or waterproof jacket is essential.
Calimesa receives approximately 129 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Calimesa.
The least favorable months to visit Calimesa are January, February, March, December, primarily due to less favorable weather conditions. For the best conditions, consider May, June, September, October instead.
The annual average UV index in Calimesa is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Calimesa is 50%, classified as dry. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Calimesa receives snow. Months with snowfall average 2 snow days and 4 cm (2 in) of accumulation, with about 3 frost days during winter.
Average wind speeds in Calimesa are 12 km/h (7 mph). The windiest month is June with peak winds reaching 13 km/h (8 mph) (gusts up to 43 km/h / 27 mph).
Calimesa averages 15 clear-sky days per month with overall cloud cover around 32%. The clearest skies occur in August.
The annual average dew point in Calimesa is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Calimesa has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Calimesa ranges from 9°C (48°F) to 23°C (73°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 Calimesa. It earns a climate score of 9.6/10 with Excellent.
For June in Calimesa, 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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