Biloxi, United States experiences average highs of 25°C (77°F) and lows of 17°C (63°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Biloxi, United States Weather & Climate 2026
Monthly climate averages for Biloxi, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.2/10
Best: March, April, May, October, November
UV Index
6
High
Temperature 25°C / 17°C
Feels Like 27°C / 18°C
Rainy Days 13
Rainfall 129 mm
Sunshine 9 h
Humidity 78%
Wind Speed 15 km/h
Dew Point 17°C
Frost Days 2 days
Hottest Month
31°C
August
Avg Low25°C
Rain21days
Coldest Month
8°C
January
Avg High16°C
Rain9days
Driest Month
7days
November
Avg High21°C
Avg Low13°C
Windiest Month
18 km/h
March (Gusts 40)
Sea Temperature
12°C – 32°C
Warmest water: August (
32.1°C
)
Worst Time to Visit
Consider avoiding July, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:54
Daylight 14.1h
Sunset 20:00
Live conditions—
Biloxi on the map · live conditions
Biloxi, United States
- Continent
- Americas
- Country
- United States
- City
- Biloxi
- Population
- 45.6K
- Elevation
- 6 m
- Coordinates
- 30.40°, -88.89°
Seasonal Breakdown
Spring
Mar–May
Avg High 25°C
Avg Low 17°C
Rain 11 days/mo
3/3 best months
Summer
Jun–Aug
Avg High 31°C
Avg Low 25°C
Rain 20 days/mo
Autumn
Sep–Nov
Avg High 26°C
Avg Low 18°C
Rain 9 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 17°C
Avg Low 10°C
Rain 10 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 / 8°C . Feb: 19°C / 11°C . Mar: 22°C / 14°C . Apr: 24°C / 17°C . May: 28°C / 21°C . Jun: 31°C / 24°C . Jul: 31°C / 25°C . Aug: 31°C / 25°C . Sep: 30°C / 23°C . Oct: 26°C / 19°C . Nov: 21°C / 13°C . Dec: 18°C / 11°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 119 mm. Feb: 105 mm. Mar: 118 mm. Apr: 104 mm. May: 135 mm. Jun: 180 mm. Jul: 187 mm. Aug: 194 mm. Sep: 118 mm. Oct: 88 mm. Nov: 79 mm. Dec: 119 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 79%. Mar: 77%. Apr: 75%. May: 78%. Jun: 81%. Jul: 84%. Aug: 83%. Sep: 79%. Oct: 73%. Nov: 74%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 18 km/h . Mar: 18 km/h . Apr: 18 km/h . May: 15 km/h . Jun: 14 km/h . Jul: 12 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 14 km/h . Nov: 15 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 7h. Feb: 7h. Mar: 9h. Apr: 10h. May: 11h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 10h. Oct: 9h. Nov: 8h. Dec: 7h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 12°C . Feb: 15°C . Mar: 19°C . Apr: 22°C . May: 27°C . Jun: 30°C . Jul: 32°C . Aug: 32°C . Sep: 29°C . Oct: 25°C . Nov: 20°C . Dec: 15°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 7. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. 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
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 25 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 32°C | Aug · 31°C |
| Coldest month | Jan 2025 · 5°C | Jan · 8°C |
| Wettest month | May 2025 · 218 mm | Aug · 194 mm |
| Windiest month | Mar 2025 · 19 km/h | Mar · 18 km/h |
Month-by-Month Weather Table
January
Fair 
February
Good March best
Excellent April best
Excellent May best
Excellent June
Wet July
Wet August
Wet September
Fair October best
Excellent November best
Excellent December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 16°C / 8°C | 14°C / 5°C | 9days (119 mm) Wet | 7.1h Good | 75% Muggy | 3.9 Moderate | Fair | View Details |
| February | 19°C / 11°C | 19°C / 10°C | 10days (105 mm) Wet | 7.4h Good | 79% Humid | 5.1 High | Good | View Details |
| March best | 22°C / 14°C | 22°C / 13°C | 12days (118 mm) Wet | 8.7h Good | 77% Humid | 6.5 High | Excellent | View Details |
| April best | 24°C / 17°C | 26°C / 16°C | 10days (104 mm) Wet | 10h Excellent | 75% Muggy | 7.7 Very High | Excellent | View Details |
| May best | 28°C / 21°C | 31°C / 23°C | 12days (135 mm) Wet | 10.8h Excellent | 78% Humid | 8 Very High | Excellent | View Details |
| June | 31°C / 24°C | 36°C / 28°C | 19days (180 mm) Wet | 11h Excellent | 81% Humid | 8.4 Very High | Wet | View Details |
| July | 31°C / 25°C | 38°C / 30°C | 21days (187 mm) Wet | 10.7h Excellent | 84% Humid | 8.3 Very High | Wet | View Details |
| August | 31°C / 25°C | 37°C / 30°C | 21days (194 mm) Wet | 10h Excellent | 83% Humid | 7.9 Very High | Wet | View Details |
| September | 30°C / 23°C | 34°C / 26°C | 12days (118 mm) Wet | 10.1h Excellent | 79% Humid | 7 High | Fair | View Details |
| October best | 26°C / 19°C | 28°C / 19°C | 8days (88 mm) Wet | 9.4h Good | 73% Muggy | 5.9 High | Excellent | View Details |
| November best | 21°C / 13°C | 21°C / 12°C | 7days (79 mm) Good | 7.8h Good | 74% Muggy | 4.4 Moderate | Excellent | View Details |
| December | 18°C / 11°C | 17°C / 9°C | 10days (119 mm) Wet | 6.6h Fair | 79% Humid | 3.7 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Biloxi are March, April, May, October, November, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Biloxi, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Biloxi is August, with average daytime highs of 31°C (88°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Biloxi is January, with average overnight lows of 8°C (46°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Biloxi is August, averaging 194mm of precipitation across 21 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Biloxi runs through July, August, June, March, with the heaviest rainfall in July. Based on 10-year averages for Biloxi.
Biloxi receives approximately 110 sunshine hours per year. The sunniest month is June with around 11 hours. Based on climate data for Biloxi.
The least favorable months to visit Biloxi are July, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider March, April, May, October, November instead.
The annual average UV index in Biloxi is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Biloxi is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in April, May, June, July, August, September, October average 28°C (82°F), which is warm and comfortable for swimming and water activities.
Biloxi rarely sees significant snowfall but does experience frost, averaging 2 frost days during the colder months.
Average wind speeds in Biloxi are 15 km/h (9 mph). The windiest month is March with peak winds reaching 18 km/h (11 mph) (gusts up to 40 km/h / 25 mph).
Biloxi averages 6 clear-sky days per month with overall cloud cover around 55%. The clearest skies occur in October.
The annual average dew point in Biloxi is 17°C (63°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Biloxi has a Humid Subtropical climate, classified as Cfa 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 Biloxi ranges from 18°C (64°F) to 27°C (81°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Biloxi, with a climate score of 3.9/10. Consider visiting during March, April, May, October, November instead for better conditions.
For June in Biloxi, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 31°C (87°F) and 19 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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