Weather forecast for todayFrench Guiana

Weather forecast for today

Current condition 12:45 -03

  • 31°C
  • Feels like:
    36°C
Partly Cloudy
Partly Cloudy
  • Precipitation: 0mm
  • Wind: 18km/hENE 60°
  • Humidity: 62%
  • Dewpoint: 23°C
  • Pressure: 1011.18mbar
  • Visibility: 9.66km
  • UV index: 11
  • ▼
Currently, in Cayenne, patches of clouds are drifting across the sky.
The temperature is a blazing 31°C, and the felt air temperature of which combines relative humidity and air temperature comes in at assessed at a torrid 36°C. The current temperature is almost at the maximum of today's predicted 33°C.

Saturday 17. Oct 2026

  • 33°C
  • 24°C
Showers
Showers
  • Precip. probability: 67%
  • Precipitation: 2mm
  • Wind: 20km/hENE 62°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 06:14 -03
  • Sunset: 18:14 -03
  • ▼
Today, showers are expected at times, with breaks in the rain later in the day.
Minimal precipitation is forecasted. Temperatures are anticipated to range from a maximum of a blazing 33°C to a minimum of a temperate 24°C.
The maximum heat index, which modifies the air temperature to account for humidity, is appraised at a burning hot 47°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Today's temperature is predicted to match October's standard peak of 32.2°C.
Sunrise was at 06:14 and sunset will be at 18:14; the daylight will last for 12h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 13h 36°C.
Coldest hour: 14h 30°C.

Chance of precipitation

Highest chance: 14h 68%.

Hourly weather forecast

  • 13h
  • 31°C
  • Feels like:
    36°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 1mm
  • Wind: 18km/hENE 67°
  • Humidity: 63%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 11
  • ▼
  • 14h
  • 27°C
  • Feels like:
    30°C
Thunderstorms
Thunderstorms
  • Precip. probability: 68%
  • Precipitation: 1mm
  • Wind: 19km/hENE 62°
  • Humidity: 82%
  • Pressure: 1010mbar
  • Visibility: 10km
  • UV index: 7
  • ▼
  • 15h
  • 29°C
  • Feels like:
    33°C
Showers
Showers
  • Precip. probability: 44%
  • Precipitation: 1mm
  • Wind: 20km/hENE 64°
  • Humidity: 72%
  • Pressure: 1010mbar
  • Visibility: 15km
  • UV index: 7
  • ▼
  • 16h
  • 30°C
  • Feels like:
    35°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 20km/hENE 62°
  • Humidity: 72%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 17h
  • 29°C
  • Feels like:
    34°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 19km/hENE 63°
  • Humidity: 75%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 18h
  • 28°C
  • Feels like:
    33°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 16km/hENE 63°
  • Humidity: 81%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:14
  • 19h
  • 27°C
  • Feels like:
    32°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 11km/hENE 62°
  • Humidity: 86%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 20h
  • 28°C
  • Feels like:
    33°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 8km/hENE 59°
  • Humidity: 87%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 21h
  • 27°C
  • Feels like:
    32°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0mm
  • Wind: 7km/hNE 56°
  • Humidity: 87%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    32°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 6km/hENE 62°
  • Humidity: 89%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 23h
  • 27°C
  • Feels like:
    31°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 5km/hENE 60°
  • Humidity: 89%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Today, a combination of primarily cloudy and occasionally rain-filled and storm-filled weather is predicted.
With minimal precipitation of 1mm, rainfall is predicted from 13h to 15h.
The temperature will vary between a maximum of 31°C and a minimum of 27°C. The feels-like temperature will be between a maximum of 36°C and a minimum of 30°C. The hottest part of the day is anticipated around 13h.
The forecasted high will be comparable to the typical October maximum of 32.2°C. The minimum temperature will be also alike with October's average low of 22.3°C.
October leads as the warmest month in Cayenne, with high temperatures averaging 32.2°C and lows at 22.3°C.
Updated: Oct 17, 2026 @ 15:45:34 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 12:45 -03, the temperature is 31°C. Feels-like temperature is 36°C.

Today, expect intermittent showers, with dry spells in between.

There is a high likelihood of rainfall, but precipitation will be minimal.

Today, the highest temperature will be 33°C, while the lowest temperature will be 24°C. The maximum heat index, which represents the influence of relative humidity on air temperature, is appraised at 47°C.
The maximum temperature will be in line with the average highest temperature of 32.2°C in October. The lowest temperature today will be also in line with the average low temperature.

On Saturday, in Cayenne, sunrise was at 06:14 and sunset will be at 18:14 (-03).

Today, the daylight will last for 12h and 1min.

French Guiana