Dumbéa, New Caledonia experiences average highs of 25°C (77°F) and lows of 21°C (70°F) throughout the year. Rainfall is frequent, averaging about 16 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Dumbéa, New Caledonia Weather & Climate 2026
Monthly climate averages for Dumbéa, New Caledonia. 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
7.4/10
Best: May, June, July, August, September
UV Index
7
High
Temperature 25°C / 21°C
Feels Like 28°C / 23°C
Rainy Days 16
Rainfall 153 mm
Sunshine 10 h
Humidity 80%
Wind Speed 15 km/h
Dew Point 19°C
Hottest Month
28°C
February
Avg Low24°C
Rain23days
Coldest Month
18°C
August
Avg High22°C
Rain10days
Driest Month
10days
June
Avg High23°C
Avg Low19°C
Windiest Month
17 km/h
February (Gusts 41)
Sea Temperature
22°C – 28°C
Warmest water: January (
27.6°C
)
Worst Time to Visit
Consider avoiding January, February, March due to heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:32
Daylight 10.8h
Sunset 17:19
Live conditions—
Dumbéa on the map · live conditions
Dumbéa, New Caledonia
- Continent
- Oceania
- Country
- New Caledonia
- City
- Dumbéa
- Population
- 19.3K
- Coordinates
- -22.16°, 166.46°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 25°C
Avg Low 20°C
Rain 13 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 28°C
Avg Low 23°C
Rain 20 days/mo
Autumn
Mar–May
Avg High 26°C
Avg Low 22°C
Rain 19 days/mo
1/3 best months
Winter
Jun–Aug
Avg High 22°C
Avg Low 18°C
Rain 10 days/mo
3/3 best months
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: 28°C / 23°C . Feb: 28°C / 24°C . Mar: 27°C / 23°C . Apr: 26°C / 22°C . May: 24°C / 20°C . Jun: 23°C / 19°C . Jul: 22°C / 18°C . Aug: 22°C / 18°C . Sep: 23°C / 18°C . Oct: 25°C / 20°C . Nov: 26°C / 21°C . Dec: 27°C / 22°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 215 mm. Feb: 306 mm. Mar: 236 mm. Apr: 245 mm. May: 101 mm. Jun: 63 mm. Jul: 73 mm. Aug: 105 mm. Sep: 58 mm. Oct: 107 mm. Nov: 119 mm. Dec: 205 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 81%. Feb: 85%. Mar: 85%. Apr: 85%. May: 82%. Jun: 80%. Jul: 78%. Aug: 77%. Sep: 76%. Oct: 78%. Nov: 78%. Dec: 80%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 15 km/h . Feb: 17 km/h . Mar: 15 km/h . Apr: 16 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 15 km/h . Aug: 16 km/h . Sep: 16 km/h . Oct: 15 km/h . Nov: 15 km/h . Dec: 15 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 10h. Mar: 10h. Apr: 9h. May: 9h. Jun: 9h. Jul: 9h. Aug: 9h. Sep: 10h. Oct: 11h. Nov: 11h. Dec: 11h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 28°C . Feb: 28°C . Mar: 27°C . Apr: 27°C . May: 26°C . Jun: 24°C . Jul: 23°C . Aug: 22°C . Sep: 23°C . Oct: 24°C . Nov: 25°C . Dec: 27°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 8. Mar: UV 7. Apr: UV 6. May: UV 6. Jun: UV 5. Jul: UV 5. Aug: UV 6. Sep: UV 7. Oct: UV 8. Nov: UV 9. Dec: UV 9.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 76 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jan 2025 · 27°C | Feb · 28°C |
| Coldest month | Aug 2025 · 18°C | Aug · 18°C |
| Wettest month | Apr 2025 · 444 mm | Feb · 306 mm |
| Windiest month | Feb 2025 · 19 km/h | Feb · 17 km/h |
Month-by-Month Weather Table
January
Wet 
February
Wet March
Wet April
Wet May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Good December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 28°C / 23°C | 32°C / 26°C | 20days (215 mm) Wet | 10.6h Excellent | 81% Humid | 9.1 Very High | Wet | View Details |
| February | 28°C / 24°C | 33°C / 27°C | 23days (306 mm) Wet | 9.9h Good | 85% Humid | 8.2 Very High | Wet | View Details |
| March | 27°C / 23°C | 32°C / 27°C | 22days (236 mm) Wet | 9.7h Good | 85% Humid | 7.4 Very High | Wet | View Details |
| April | 26°C / 22°C | 29°C / 25°C | 21days (245 mm) Wet | 9h Good | 85% Humid | 6.4 High | Wet | View Details |
| May best | 24°C / 20°C | 26°C / 22°C | 14days (101 mm) Wet | 8.8h Good | 82% Humid | 5.5 High | Excellent | View Details |
| June best | 23°C / 19°C | 24°C / 20°C | 10days (63 mm) Wet | 8.7h Good | 80% Humid | 4.9 Moderate | Excellent | View Details |
| July best | 22°C / 18°C | 23°C / 18°C | 10days (73 mm) Wet | 8.8h Good | 78% Humid | 5 Moderate | Excellent | View Details |
| August best | 22°C / 18°C | 23°C / 18°C | 10days (105 mm) Wet | 8.8h Good | 77% Humid | 5.9 High | Excellent | View Details |
| September best | 23°C / 18°C | 25°C / 19°C | 10days (58 mm) Wet | 10.3h Excellent | 76% Humid | 7.2 Very High | Excellent | View Details |
| October | 25°C / 20°C | 28°C / 21°C | 15days (107 mm) Wet | 10.7h Excellent | 78% Humid | 8.3 Very High | Good | View Details |
| November | 26°C / 21°C | 29°C / 23°C | 15days (119 mm) Wet | 11.1h Excellent | 78% Humid | 8.9 Very High | Good | View Details |
| December | 27°C / 22°C | 31°C / 25°C | 18days (205 mm) Wet | 10.7h Excellent | 80% Humid | 9.1 Very High | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Dumbéa are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Dumbéa, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Dumbéa is February, with average daytime highs of 28°C (82°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Dumbéa is August, with average overnight lows of 18°C (64°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Dumbéa is February, averaging 306mm of precipitation across 23 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Dumbéa runs through February, March, April, January, with the heaviest rainfall in February. Based on 10-year averages for Dumbéa.
Dumbéa receives approximately 117 sunshine hours per year. The sunniest month is November with around 11 hours. Based on climate data for Dumbéa.
The least favorable months to visit Dumbéa are January, February, March, primarily due to heavy rainfall, oppressive humidity. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Dumbéa is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Dumbéa is 80%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 25°C (77°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Dumbéa are 15 km/h (9 mph). The windiest month is February with peak winds reaching 17 km/h (10 mph) (gusts up to 41 km/h / 26 mph).
Dumbéa averages 1 clear-sky days per month with overall cloud cover around 66%. The clearest skies occur in August.
The annual average dew point in Dumbéa is 19°C (66°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Dumbéa has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Dumbéa ranges from 23°C (73°F) to 28°C (82°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
Yes, June is a great time to visit Dumbéa. It earns a climate score of 8.9/10 with Excellent.
For June in Dumbéa, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 23°C (73°F) and 10 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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