Weather forecast for tomorrowGuantanamo, Cuba

Weather forecast for tomorrow

Wednesday 21. Oct 2026

  • 31°C
  • 22°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 58%
  • Precipitation: 6mm
  • Wind: 13km/hSW 216°
  • Humidity: 77%
  • UV index: 10
  • Sunrise: 06:57 CDT
  • Sunset: 18:32 CDT
  • ▼
Tomorrow, on Wednesday, 21st of October, expect stormy weather in the afternoon with lightning and gusts.
The likelihood of precipitation is high. However, the rainfall will be light. The temperature is anticipated to vary between a blazing 31°C and a pleasant 22°C.
The maximum heat index, which measures the combined effect of heat and moisture, is calculated to be a scorching 40°C. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The expected maximum is predicted to be in line with the regular October temperature of 30°C.
Sunrise will be at 06:57 and sunset at 18:32; tomorrow's daylight will last for 11h and 35min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 15h 35°C.
Minimum temperature: 24°C.

Chance of precipitation

Highest chance: 15h 59%.

Hourly weather forecast

  • 0h
  • 24°C
  • Feels like:
    24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 5km/hNW 308°
  • Humidity: 92%
  • Pressure: 1012mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
  • 2h
  • 24°C
  • Feels like:
    26°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 5km/hWNW 298°
  • Humidity: 94%
  • Pressure: 1011mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
  • 4h
  • 23°C
  • Feels like:
    25°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0mm
  • Wind: 6km/hNW 319°
  • Humidity: 94%
  • Pressure: 1010mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
  • 6h
  • 23°C
  • Feels like:
    24°C
Mostly Clear
Mostly Clear
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 5km/hNW 310°
  • Humidity: 96%
  • Pressure: 1011mbar
  • Visibility: 13km
  • UV index: 0
  • ▼
Sunrise: 06:57
  • 8h
  • 24°C
  • Feels like:
    26°C
Sunny
Sunny
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 6km/hNW 316°
  • Humidity: 93%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 10h
  • 28°C
  • Feels like:
    32°C
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 5km/hWNW 302°
  • Humidity: 77%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 12h
  • 30°C
  • Feels like:
    35°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 8km/hSSE 163°
  • Humidity: 67%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 10
  • ▼
  • 14h
  • 30°C
  • Feels like:
    36°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 41%
  • Precipitation: 1mm
  • Wind: 12km/hSSE 166°
  • Humidity: 68%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 7
  • ▼
  • 16h
  • 29°C
  • Feels like:
    34°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 34%
  • Precipitation: 1mm
  • Wind: 12km/hS 189°
  • Humidity: 73%
  • Pressure: 1010mbar
  • Visibility: 14km
  • UV index: 2
  • ▼
  • 18h
  • 28°C
  • Feels like:
    31°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 9km/hSSW 201°
  • Humidity: 77%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:32
  • 20h
  • 26°C
  • Feels like:
    29°C
Clear
Clear
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 5km/hW 280°
  • Humidity: 85%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 25°C
  • Feels like:
    28°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0mm
  • Wind: 4km/hNW 316°
  • Humidity: 87%
  • Pressure: 1013mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
Tomorrow, on Wednesday, a combination of gloomy, unstable and dry and sunny weather is anticipated.
With minimal precipitation of 1mm, rainfall is anticipated from 13h to 16h.
The temperature will vary between a minimum of 22°C and a maximum of 30°C. The feels-like temperature will vary between the lowest temperature of 24°C and the highest temperature of 36°C. The hottest part of the day will be from 11h to 15h.
The maximum temperature will be alike with the average high of 30°C in October. The expected low will be also close to the average minimum in October, which is 22.9°C.
Updated: Oct 20, 2026 @ 22:14:26 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Wednesday, expect thunderstorms and downpours in the afternoon.

Light precipitation of 6mm is predicted. The chance of rainfall is 58%.

Tomorrow, the highest temperature will be 31°C, while the lowest temperature will be 22°C. The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be 40°C.
The maximum temperature will be in line with the average highest temperature of 30°C in October. The lowest temperature will be also in line with the average low of 22.9°C.

On Wednesday, in Guantanamo, sunrise will be at 06:57 and sunset at 18:32 (CDT).

In Guantanamo, tomorrow, there will be 11h and 35min of daylight.