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: 34%
  • Precipitation: 1mm
  • Wind: 17km/hS 169°
  • Humidity: 70%
  • UV index: 10
  • Sunrise: 05:24 +11
  • Sunset: 18:09 +11
  • ▼
On Sunday, 25th of October, light showers are expected to pass through in the afternoon.
Minimal precipitation is forecasted for today. Temperature span will be from a high of a temperate 29°C to a low of an enjoyable 19°C.
The maximum heat index, which measures the combined effect of heat and moisture, is estimated at a humid 33°C. Note that heat index values are valued for light wind and location in the shade.
Today's maximum temperature is expected to be moderately higher than the common October peak 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: 34%.

Long-term weather forecast

  • Sunday
  • 25. Oct 2026
  • 29°C
  • 19°C
PM Showers
PM Showers
  • Precip. probability: 34%
  • Precipitation: 1mm
  • Wind: 17km/hS 169°
  • Humidity: 70%
  • 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: 0mm
  • 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: 34%
  • Precipitation: 2mm
  • Wind: 13km/hSW 224°
  • Humidity: 69%
  • 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: 5%
  • Precipitation: 0mm
  • Wind: 17km/hWSW 243°
  • 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: 21km/hSW 231°
  • Humidity: 68%
  • 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 176°
  • 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: 20%
  • Precipitation: 0mm
  • Wind: 19km/hS 171°
  • 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: 21%
  • Precipitation: 0mm
  • Wind: 15km/hS 176°
  • Humidity: 63%
  • 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: 19%
  • Precipitation: 0mm
  • Wind: 17km/hSSW 198°
  • Humidity: 65%
  • 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: 15%
  • Precipitation: 0mm
  • Wind: 16km/hSSW 197°
  • Humidity: 65%
  • UV index: 11
  • Sunrise: 05:19 +11
  • Sunset: 18:13 +11
  • ▼
Models point to a combination of primarily dull and occasionally showery and sun-filled weather is anticipated.
Rainfall is predicted for Sunday and Tuesday.
Highs will stay within a very narrow margin across the forecast window. Maximum temperatures will fall between 28°C and 29°C, while the lowest nightly temperature differences will be also negligible, 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, New Caledonia; Friday through next Sunday, with the highest temperature of 28°C, will be the coldest days in Koumac, New Caledonia.
Combining with the humidity, the maximum feel-like temperature may increase and range between a tropical 30°C and a hot 33°C.
Updated: Oct 24, 2026 @ 16:11:17 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, a few rain showers may pass through in the afternoon.

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

Today, the maximum temperature will be 29°C, while the minimum temperature will be 19°C. The maximum heat index, which reflects the perceived temperature due to humidity levels, is estimated at 33°C.
Today, the highest temperature will be slightly warmer than the average maximum temperature in October. The lowest temperature today will be also moderately lower than the average low temperature.

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

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