Red Bluff, United States experiences average highs of 24°C (75°F) and lows of 12°C (54°F) throughout the year. The climate is relatively dry, with only 6 rainy days per month on average. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Red Bluff, United States Weather & Climate 2026
Monthly climate averages for Red Bluff, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.3/10
Best: May, June, September, October
UV Index
5
Low
Temperature 24°C / 12°C
Feels Like 22°C / 10°C
Rainy Days 6
Rainfall 67 mm
Sunshine 10 h
Humidity 50%
Wind Speed 14 km/h
Dew Point 6°C
Snow Days 1 days
Frost Days 2 days
Hottest Month
37°C
July
Avg Low23°C
Rain0days
Coldest Month
4°C
February
Avg High15°C
Rain9days
Driest Month
0days
July
Avg High37°C
Avg Low23°C
Windiest Month
17 km/h
March (Gusts 39)
Worst Time to Visit
Consider avoiding January, February, December due to frequent rain.
Sun Position
Sunrise 05:40
Daylight 15h
Sunset 20:41
Live conditions—
Red Bluff on the map · live conditions
Red Bluff, United States
- Continent
- Americas
- Country
- United States
- City
- Red Bluff
- Population
- 14.1K
- Elevation
- 93 m
- Coordinates
- 40.18°, -122.24°
Seasonal Breakdown
Spring
Mar–May
Avg High 22°C
Avg Low 9°C
Rain 8 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 36°C
Avg Low 21°C
Rain 1 days/mo
1/3 best months
Autumn
Sep–Nov
Avg High 25°C
Avg Low 13°C
Rain 5 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 14°C
Avg Low 5°C
Rain 11 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: 13°C / 5°C . Feb: 15°C / 4°C . Mar: 17°C / 6°C . Apr: 22°C / 9°C . May: 28°C / 13°C . Jun: 34°C / 19°C . Jul: 37°C / 23°C . Aug: 36°C / 22°C . Sep: 32°C / 18°C . Oct: 26°C / 13°C . Nov: 18°C / 8°C . Dec: 14°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 160 mm. Feb: 123 mm. Mar: 140 mm. Apr: 50 mm. May: 29 mm. Jun: 7 mm. Jul: 1 mm. Aug: 3 mm. Sep: 12 mm. Oct: 41 mm. Nov: 98 mm. Dec: 138 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 72%. Feb: 64%. Mar: 66%. Apr: 55%. May: 43%. Jun: 32%. Jul: 26%. Aug: 30%. Sep: 35%. Oct: 42%. Nov: 61%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 15 km/h . Feb: 16 km/h . Mar: 17 km/h . Apr: 15 km/h . May: 15 km/h . Jun: 14 km/h . Jul: 14 km/h . Aug: 13 km/h . Sep: 13 km/h . Oct: 13 km/h . Nov: 13 km/h . Dec: 13 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 8h. Mar: 9h. Apr: 11h. May: 13h. Jun: 14h. Jul: 14h. Aug: 13h. Sep: 11h. Oct: 9h. Nov: 7h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 7. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 6. Oct: UV 5. Nov: UV 3. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 0 days. Feb: 1 days. Mar: 1 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: 0 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 13 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 36°C | Jul · 37°C |
| Coldest month | Jan 2025 · 4°C | Feb · 4°C |
| Wettest month | Feb 2025 · 231 mm | Jan · 160 mm |
| Windiest month | Mar 2025 · 18 km/h | Mar · 17 km/h |
Month-by-Month Weather Table
January
Poor 
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 | 13°C / 5°C | 11°C / 2°C | 13days (160 mm) Wet | 6h Fair | 72% Muggy | 2.4 Moderate | Poor | View Details |
| February | 15°C / 4°C | 12°C / 1°C | 9days (123 mm) Wet | 7.8h Good | 64% Muggy | 3.2 Moderate | Fair | View Details |
| March | 17°C / 6°C | 14°C / 3°C | 14days (140 mm) Wet | 8.8h Good | 66% Muggy | 4.8 Moderate | Fair | View Details |
| April | 22°C / 9°C | 20°C / 7°C | 7days (50 mm) Good | 10.9h Excellent | 55% Moderate | 6.5 High | Good | View Details |
| May best | 28°C / 13°C | 26°C / 11°C | 4days (29 mm) Good | 12.6h Excellent | 43% Moderate | 7.7 Very High | Excellent | View Details |
| June best | 34°C / 19°C | 33°C / 17°C | 1days (7 mm) Excellent | 13.6h Excellent | 32% Comfortable | 8 Very High | Excellent | View Details |
| July | 37°C / 23°C | 37°C / 22°C | 0days (1 mm) Excellent | 13.6h Excellent | 26% Comfortable | 8.2 Very High | Good | View Details |
| August | 36°C / 22°C | 36°C / 21°C | 1days (3 mm) Excellent | 12.6h Excellent | 30% Comfortable | 7.5 Very High | Good | View Details |
| September best | 32°C / 18°C | 31°C / 16°C | 2days (12 mm) Excellent | 11.3h Excellent | 35% Comfortable | 6.2 High | Excellent | View Details |
| October best | 26°C / 13°C | 23°C / 10°C | 5days (41 mm) Good | 9.4h Good | 42% Moderate | 4.6 Moderate | Excellent | View Details |
| November | 18°C / 8°C | 15°C / 5°C | 9days (98 mm) Wet | 7.4h Good | 61% Muggy | 2.9 Moderate | Good | View Details |
| December | 14°C / 5°C | 11°C / 2°C | 11days (138 mm) Wet | 5.9h Fair | 71% Muggy | 2.1 Moderate | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Red Bluff are May, June, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Red Bluff, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Red Bluff is July, with average daytime highs of 37°C (99°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Red Bluff is February, with average overnight lows of 4°C (40°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Red Bluff is January, averaging 160mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Red Bluff runs through March, January, December, with the heaviest rainfall in March. Based on 10-year averages for Red Bluff.
Red Bluff receives approximately 120 sunshine hours per year. The sunniest month is June with around 14 hours. Based on climate data for Red Bluff.
The least favorable months to visit Red Bluff are January, February, December, primarily due to frequent rain. For the best conditions, consider May, June, September, October instead.
The annual average UV index in Red Bluff is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Red Bluff is 50%, classified as dry. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Red Bluff receives snow. Months with snowfall average 1 snow days and 2 cm (1 in) of accumulation, with about 2 frost days during winter.
Average wind speeds in Red Bluff are 14 km/h (9 mph). The windiest month is March with peak winds reaching 17 km/h (10 mph) (gusts up to 39 km/h / 24 mph).
Red Bluff averages 13 clear-sky days per month with overall cloud cover around 37%. The clearest skies occur in July.
The annual average dew point in Red Bluff is 6°C (43°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Red Bluff 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 Red Bluff ranges from 10°C (50°F) to 22°C (72°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 Red Bluff. It earns a climate score of 9.5/10 with Excellent.
For June in Red Bluff, pack Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses, Sandals. With average highs of 34°C (93°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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