Weather forecast for 10 daysGustavia, Saint Barthélemy
Weather forecast for the weekend
Sunday 8. Nov 2026
- 29°C
- 27°C
Thunderstorms
- Precip. probability: 66%
- Precipitation: 8mm
- Wind: 20km/hWSW 248°
- Humidity: 80%
- UV index: 5
- Sunrise: 06:13 AST
- Sunset: 17:36 AST
- details ▼
On Sunday, in Gustavia, rolling thunder and rain showers are also in the outlook.
The chance of precipitation for tomorrow is high. However, the rainfall will be light. A daytime temperature reaching up to a warm 29°C will subtly contrast with a nighttime low of a moderately hot 27°C.
The maximum heat index, which combines relative humidity and air temperature, is appraised at a torrid 35°C. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise will be at 06:13 and sunset at 17:36; tomorrow's daylight will last for 11h and 23min.
The chance of precipitation for tomorrow is high. However, the rainfall will be light. A daytime temperature reaching up to a warm 29°C will subtly contrast with a nighttime low of a moderately hot 27°C.
The maximum heat index, which combines relative humidity and air temperature, is appraised at a torrid 35°C. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise will be at 06:13 and sunset at 17:36; tomorrow's daylight will last for 11h and 23min.
10-day overview
Daily temperatures
Warmest period: Friday - Saturday 31°C.
Coldest day: tomorrow 29°C.
Coldest day: tomorrow 29°C.
Chance of precipitation
Highest chance: today 82%.
Long-term weather forecast
- Saturday
- 7. Nov 2026
- min.
- 25°C
Thunderstorms
- Precip. probability: 82%
- Precipitation: 1mm
- Wind: 20km/hWSW 239°
- Humidity: 87%
- UV index: 0
- Sunrise: 06:13 AST
- Sunset: 17:37 AST
- details ▼
- Sunday
- 8. Nov 2026
- 29°C
- 27°C
Thunderstorms
- Precip. probability: 66%
- Precipitation: 8mm
- Wind: 20km/hWSW 248°
- Humidity: 80%
- UV index: 5
- Sunrise: 06:13 AST
- Sunset: 17:36 AST
- details ▼
- Monday
- 9. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 3km/hWSW 248°
- Humidity: 76%
- UV index: 8
- Sunrise: 06:14 AST
- Sunset: 17:36 AST
- details ▼
- Tuesday
- 10. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0mm
- Wind: 9km/hESE 118°
- Humidity: 75%
- UV index: 9
- Sunrise: 06:14 AST
- Sunset: 17:36 AST
- details ▼
- Wednesday
- 11. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0mm
- Wind: 16km/hESE 104°
- Humidity: 75%
- UV index: 9
- Sunrise: 06:15 AST
- Sunset: 17:35 AST
- details ▼
- Thursday
- 12. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0mm
- Wind: 22km/hSE 126°
- Humidity: 75%
- UV index: 8
- Sunrise: 06:15 AST
- Sunset: 17:35 AST
- details ▼
- Friday
- 13. Nov 2026
- 31°C
- 27°C
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0mm
- Wind: 26km/hSE 139°
- Humidity: 73%
- UV index: 9
- Sunrise: 06:16 AST
- Sunset: 17:35 AST
- details ▼
- Saturday
- 14. Nov 2026
- 31°C
- 27°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 25km/hSE 141°
- Humidity: 71%
- UV index: 9
- Sunrise: 06:16 AST
- Sunset: 17:35 AST
- details ▼
- Sunday
- 15. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0mm
- Wind: 21km/hESE 121°
- Humidity: 70%
- UV index: 9
- Sunrise: 06:17 AST
- Sunset: 17:34 AST
- details ▼
- Monday
- 16. Nov 2026
- 30°C
- 27°C
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 2mm
- Wind: 21km/hE 95°
- Humidity: 71%
- UV index: 8
- Sunrise: 06:17 AST
- Sunset: 17:34 AST
- details ▼
Forecasts for the ten-day outlook show that primarily overcast and occasionally lightning-active weather is forecasted.
Rainfall is expected on Saturday, Sunday and next Monday.
Fluctuations in temperature will be barely perceptible over the next several days. Maximum temperatures will fall between 29°C and 31°C, while the nighttime low will be also mostly stable, as the lowest temperatures will remain in the range of 25°C to 27°C.
Friday and next Saturday, with the highest temperature of 31°C, will be the hottest days; with the highest temperature of 29°C, Sunday will be the coldest day.
Including the humidity's impact, the maximum feel-like temperature may increase substantially and vary between a torrid 35°C and a steamy 39°C.
Rainfall is expected on Saturday, Sunday and next Monday.
Fluctuations in temperature will be barely perceptible over the next several days. Maximum temperatures will fall between 29°C and 31°C, while the nighttime low will be also mostly stable, as the lowest temperatures will remain in the range of 25°C to 27°C.
Friday and next Saturday, with the highest temperature of 31°C, will be the hottest days; with the highest temperature of 29°C, Sunday will be the coldest day.
Including the humidity's impact, the maximum feel-like temperature may increase substantially and vary between a torrid 35°C and a steamy 39°C.
Updated: Nov 8, 2026 @ 03:19:52 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, storm clouds could lead to bursts of thunder and rain.
With a probability of 66%, light precipitation of 8mm is anticipated.
Tomorrow, the highest temperature will be 29°C, while the lowest temperature will be 27°C. The maximum heat index, which factors the actual air temperature with the relative humidity, is calculated to be 35°C.
On Sunday, in Gustavia, sunrise will be at 06:13 and sunset at 17:36 (AST).
In Gustavia, the length of the day tomorrow will be 11h and 23min.
