Weather forecast for 10 daysKoumac, New Caledonia

Weather forecast for the weekend

Sunday 25. Oct 2026

  • 29°C
  • 19°C
PM Showers
PM Showers
  • Precip. probability: 33%
  • Precipitation: 0mm
  • Wind: 17km/hS 174°
  • Humidity: 64%
  • UV index: 10
  • Sunrise: 05:24 +11
  • Sunset: 18:09 +11
  • ▼
On Sunday, 25th of October, afternoon showers are expected.
Minimal precipitation is forecasted for today. The predicted temperature range extends from a high of a temperate 29°C to a low of an enjoyable 19°C.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a hot 32°C. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted temperature is slightly warmer than October's regular maximum of 25°C.
Sunrise will be at 05:24 and sunset at 18:09; the daylight will last for 12h and 44min.

10-day overview

Daily temperatures

Maximum temperature: 29°C.
Coldest period: Friday - Sunday 28°C.

Chance of precipitation

Highest chance: 33%.

Long-term weather forecast

  • Sunday
  • 25. Oct 2026
  • 29°C
  • 19°C
PM Showers
PM Showers
  • Precip. probability: 33%
  • Precipitation: 0mm
  • Wind: 17km/hS 174°
  • Humidity: 64%
  • UV index: 10
  • Sunrise: 05:24 +11
  • Sunset: 18:09 +11
  • ▼
  • Monday
  • 26. Oct 2026
  • 29°C
  • 19°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 1mm
  • Wind: 16km/hS 186°
  • Humidity: 67%
  • UV index: 11
  • Sunrise: 05:24 +11
  • Sunset: 18:09 +11
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 29°C
  • 20°C
PM Showers
PM Showers
  • Precip. probability: 33%
  • Precipitation: 0mm
  • Wind: 13km/hSW 224°
  • Humidity: 68%
  • UV index: 10
  • Sunrise: 05:23 +11
  • Sunset: 18:09 +11
  • ▼
  • Wednesday
  • 28. Oct 2026
  • 29°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 2mm
  • Wind: 17km/hWSW 242°
  • Humidity: 68%
  • UV index: 11
  • Sunrise: 05:23 +11
  • Sunset: 18:10 +11
  • ▼
  • Thursday
  • 29. Oct 2026
  • 29°C
  • 20°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 20km/hSW 231°
  • Humidity: 67%
  • UV index: 11
  • Sunrise: 05:22 +11
  • Sunset: 18:10 +11
  • ▼
  • Friday
  • 30. Oct 2026
  • 28°C
  • 19°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 23km/hS 179°
  • Humidity: 65%
  • UV index: 11
  • Sunrise: 05:21 +11
  • Sunset: 18:11 +11
  • ▼
  • Saturday
  • 31. Oct 2026
  • 28°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 19km/hS 174°
  • Humidity: 63%
  • UV index: 11
  • Sunrise: 05:21 +11
  • Sunset: 18:11 +11
  • ▼
  • Sunday
  • 1. Nov 2026
  • 28°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 15km/hS 177°
  • Humidity: 64%
  • UV index: 11
  • Sunrise: 05:20 +11
  • Sunset: 18:12 +11
  • ▼
  • Monday
  • 2. Nov 2026
  • 29°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 16km/hSSW 192°
  • Humidity: 64%
  • UV index: 11
  • Sunrise: 05:20 +11
  • Sunset: 18:12 +11
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 29°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0mm
  • Wind: 15km/hSSW 198°
  • Humidity: 65%
  • UV index: 11
  • Sunrise: 05:19 +11
  • Sunset: 18:13 +11
  • ▼
Primarily cloud-filled and occasionally damp and mostly clear weather is expected.
With a 12% probability, rainfall is anticipated only on Monday. The precipitation will be minimal at 2mm.
The maximum temperature will be almost identical in the coming days. The maximum temperature will vary between 28°C and 29°C, while changes in the overnight low will be also barely noticeable, as night temperatures will lie between 19°C and 20°C.
With a maximum temperature of 29°C, Sunday through Thursday, next Monday and Tuesday will be the hottest days in Koumac; with a maximum temperature of 28°C, Friday through next Sunday will be the coldest days in Koumac.
Updated: Oct 24, 2026 @ 13:32:30 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, a chance of afternoon showers exists, so it may be a good idea to keep an umbrella handy.

Today, there is a low chance of minimal precipitation in Koumac.

Today, the highest temperature will be 29°C, while the lowest temperature will be 19°C. The maximum heat index, which combines air temperature and relative humidity, is computed to be 32°C.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 25°C in October. The lowest temperature will be also slightly cooler than the average low of 21.3°C.

On Sunday, in Koumac, sunrise will be at 05:24 and sunset at 18:09 (+11).

In Koumac, today, there will be 12h and 44min of daylight.