Guantánamo, Cuba — Weather in August 2026

Climate Overview

Guantánamo, Cuba in August has hot conditions, with highs reaching 34.1°C (93°F) and afternoons the warmest part of the day. Rain falls on about 16 days this month, totalling around 84 mm.

This month falls at the end of Summer. The combination of heat and frequent rain creates tropical monsoon conditions.

Temperatures remain fairly steady throughout August, with daily highs around 34°C (93°F).

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

The warmest days tend to fall around the 7th, averaging 34.8°C (95°F).

Monthly August Averages

Temperature

34°C / 25°C

Feels Like

39°C / 31°C

Rain

16 days · 84 mm

Sunshine

11.5h / day

Humidity

70% — Muggy

Wind

12 km/h

Wind Direction

ENE (76°)

Gusts

33 km/h

Daylight

12.8 h

Cloud Cover

55%

Clear Sky Days

UV Index

8.6 — Very High

Dew Point

24°C — Muggy

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:41

Daylight 12.8h

Sunset 19:30

What to Expect

With midday temperatures reaching 34°C (93°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

Recent yearly records for August have stayed close to the long-run average.

Compare Months

3days (13 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	30°C / 21°C	31°C / 23°C	5days (18 mm) Good	10h Excellent	72% Muggy	6.3 High	Excellent	View Details
February best	30°C / 21°C	32°C / 24°C	3days (13 mm) Excellent	10.5h Excellent	69% Muggy	7.1 Very High	Excellent	View Details
March best	31°C / 21°C	33°C / 24°C	6days (24 mm) Good	11.1h Excellent	68% Muggy	8.3 Very High	Excellent	View Details
April	31°C / 22°C	35°C / 26°C	10days (63 mm) Wet	11.6h Excellent	70% Muggy	8.6 Very High	Fair	View Details
May	31°C / 24°C	36°C / 28°C	18days (161 mm) Wet	11.2h Excellent	75% Muggy	8.8 Very High	Wet	View Details
June	33°C / 25°C	38°C / 30°C	16days (101 mm) Wet	11.3h Excellent	72% Muggy	8.4 Very High	Poor	View Details
July	34°C / 25°C	39°C / 30°C	16days (73 mm) Wet	11.8h Excellent	68% Muggy	8.5 Very High	Poor	View Details
August	34°C / 25°C	39°C / 31°C	16days (84 mm) Wet	11.5h Excellent	70% Muggy	8.6 Very High	Poor	View Details
September	33°C / 25°C	38°C / 30°C	21days (127 mm) Wet	10.8h Excellent	74% Muggy	8.1 Very High	Wet	View Details
October	31°C / 24°C	36°C / 29°C	21days (150 mm) Wet	9.9h Good	79% Humid	7.3 Very High	Wet	View Details
November	30°C / 23°C	34°C / 26°C	12days (76 mm) Wet	9.7h Good	78% Humid	6.3 High	Fair	View Details
December best	30°C / 22°C	32°C / 25°C	4days (24 mm) Good	9.8h Good	74% Muggy	5.8 High	Excellent	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

Expand all

Is August a good time to visit Guantánamo?

August is typically poor for visiting Guantánamo, with average highs of 34°C (93°F) and around 16 rainy days. Guantánamo, Cuba in August has hot conditions, with highs reaching 34.1°C (93°F) and afternoons the warmest part of the

Does it rain a lot in Guantánamo in August?

Guantánamo typically sees around 16 rainy days in August with 84 mm (3.3 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Guantánamo in August?

Nights stay pleasantly warm in Guantánamo during August, around 25°C (78°F). Light evening wear is sufficient.

What should I pack for Guantánamo in August?

With highs of 34°C (93°F) and lows of 25°C (78°F) in August, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is August among the best months weather-wise in Guantánamo?

August is not the most favourable month weather-wise in Guantánamo. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Guantánamo in August?

The average UV index in Guantánamo during August is 9 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in Guantánamo in August?

Guantánamo gets approximately 13 hours of daylight per day in August, with around 12 hours of sunshine.

Does it snow in Guantánamo in August?

Snow is uncommon in Guantánamo during August based on 10-year climate averages.

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