Weather forecast for 10 days
Cayenne, French Guiana

Weather forecast for the weekend

Saturday, 10. May

Scattered Thunderstorms
06:14

18:36
-03
Scattered Thunderstorms
31°C / 24°C
  • Wind: 21km/h E
  • Humidity: 79%
  • Precip. probability: 58%
  • Precipitation: 7mm
  • UV index: 11
Tomorrow, on Saturday, 10th of May, expect scattered thunderstorms that may be accompanied by brief heavy rain and thunder.
The likelihood of rainfall is high. However, precipitation will be light. The temperature scale will run from a maximum of a hot 31°C to a minimum of a moderately hot 24°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be a torridly hot 41°C. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Expect temperatures to reach May's average high of 29.9°C.
Sunrise will be at 06:14 and sunset at 18:36; tomorrow's daylight will last for 12h and 22min.

Sunday, 11. May

Thunderstorms
06:14

18:36
-03
Thunderstorms
29°C / 24°C
  • Wind: 21km/h E
  • Humidity: 84%
  • Precip. probability: 88%
  • Precipitation: 10mm
  • UV index: 6
On Sunday, 11th of May, scattered thunderstorms are expected to form.
The chance of rainfall is high. However, precipitation will be light. The temperature will peak at a moderately hot 29°C during the day, slightly dropping to a low of a temperate 24°C at night.
Sunday's temperature is forecasted to match May's standard peak of 29.9°C.
Sunrise will be at 06:14 and sunset at 18:36; the daylight will last for 12h and 22min.

Frequently asked questions

What is the weather forecast for Cayenne for tomorrow?
On Saturday, scattered thunderstorms are expected, and a few may bring strong wind gusts.
Will it rain tomorrow?
Light precipitation of 7mm is forecasted. The chance of rainfall is 58%.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature in Cayenne will be 31°C, while the lowest temperature will be 24°C. The maximum heat index, which indicates how humid air affects the felt temperature, is assessed at 41°C.
The highest temperature tomorrow will be in line with the average maximum temperature in May. The lowest temperature will be also in line with the average low of 23.5°C.
What time are sunrise and sunset tomorrow?
On Saturday, in Cayenne, sunrise will be at 06:14 and sunset at 18:36 (-03).
How long will the day be tomorrow?
In Cayenne, the length of the day tomorrow will be 12h and 22min.
What is the weather forecast for Cayenne for Sunday?
On Sunday, electrical storms are a possibility.
Will it rain on Sunday in Cayenne?
Light precipitation of 10mm is forecasted on Sunday. The possibility of rainfall is high at 88%.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 29°C, while the minimum temperature will be 24°C.
What is the weather forecast for Cayenne for the next ten days?
In Cayenne, lightning activity with storms is expected each day for the next ten days.
Will it rain in the next ten days?
With daily precipitation varying from a maximum of 37mm to a minimum of 7mm, rainfall is anticipated every day in Cayenne. Next Saturday, with intense precipitation of 37mm, will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 28°C and 31°C, while the minimum temperature will vary between 24°C and 25°C.
Including the humidity's impact, the maximum feel-like temperature will range between 33°C and 41°C.
What will be the hottest and the coldest days in Cayenne?
Tomorrow will be the hottest day, with a maximum temperature of 31°C. The coldest days will be Monday, next Friday and Saturday, with a maximum of 28°C.

Long-term weather forecast

Fri09.May
  • 30°C
  • 25°C
Thundershowers
Thundershowers
  • Wind: 18km/h E
  • Humidity: 81%
  • UV index: 9
  • Precip. probability: 69%
  • Precipitation: 8mm
  • 06:14 18:36 -03
Sat10.May
  • 31°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 21km/h E
  • Humidity: 79%
  • UV index: 11
  • Precip. probability: 58%
  • Precipitation: 7mm
  • 06:14 18:36 -03
Sun11.May
  • 29°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 21km/h E
  • Humidity: 84%
  • UV index: 6
  • Precip. probability: 88%
  • Precipitation: 10mm
  • 06:14 18:36 -03
Mon12.May
  • 28°C
  • 24°C
Thundershowers
Thundershowers
  • Wind: 19km/h E
  • Humidity: 85%
  • UV index: 8
  • Precip. probability: 86%
  • Precipitation: 18mm
  • 06:14 18:36 -03
Tue13.May
  • 29°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 19km/h E
  • Humidity: 85%
  • UV index: 9
  • Precip. probability: 89%
  • Precipitation: 24mm
  • 06:14 18:36 -03
Wed14.May
  • 29°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 22km/h E
  • Humidity: 84%
  • UV index: 9
  • Precip. probability: 81%
  • Precipitation: 23mm
  • 06:14 18:36 -03
Thu15.May
  • 29°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 22km/h E
  • Humidity: 85%
  • UV index: 6
  • Precip. probability: 72%
  • Precipitation: 29mm
  • 06:14 18:37 -03
Fri16.May
  • 28°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 21km/h E
  • Humidity: 86%
  • UV index: 3
  • Precip. probability: 62%
  • Precipitation: 28mm
  • 06:14 18:37 -03
Sat17.May
  • 28°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 20km/h E
  • Humidity: 87%
  • UV index: 3
  • Precip. probability: 60%
  • Precipitation: 37mm
  • 06:14 18:37 -03
Sun18.May
  • 29°C
  • 24°C
Thunderstorms
Thunderstorms
  • Wind: 21km/h E
  • Humidity: 86%
  • UV index: 8
  • Precip. probability: 60%
  • Precipitation: 30mm
  • 06:13 18:37 -03
Weather patterns suggest that stormy conditions are expected on most days.
Rainfall is forecasted day-to-day, with daily precipitation varying from a minimal 7mm to a maximum of 37mm.
The high temperatures are expected to remain largely stable in the forecast period ahead. Highs will range from 28°C to 31°C, while the nighttime low will be also mostly stable, as night temperatures will lie between 24°C and 25°C.
With the highest temperature of 31°C, Saturday will be the hottest day; the coldest days will be Monday, next Friday and Saturday, with a maximum of 28°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and vary between a humid 33°C and a scorching 41°C.
Updated: May 9, 2025 @ 04:09:59 UTC
Published by: Weather Atlas | About Us
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