Santiago de Cuba weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: November – March
What is the weather like in Santiago de Cuba in August?
In August, Santiago de Cuba is hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 29.9 °C – almost as warm as a bath. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 15 days, totalling 81 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Santiago de Cuba.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 44 | 38 | 36 |
| Day | 33° | 33° | 31° |
| Night | 25° | 25° | 25° |
| Sea | 30° | 30° | 30° |
| Sun | 8 h | 8 h | 7 h |
| Rain days | 13 | 15 | 20 |
More details for August
- Daylight
- 12 h 50 min06:43 – 19:33
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 29 days30 °C or moreAll months
- Time zone
- UTC−4America/Havana
How the score comes together
- Temperatureweight 50 %31 %
- Sunshineweight 20 %78 %
- Few rainy daysweight 30 %23 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Santiago de Cuba in August: quick answers
Is Santiago de Cuba hot in August?
Yes. In August, Santiago de Cuba is hot: daytime highs average 33 °C and nights stay around 25 °C. On about 29 days the thermometer climbs to 30 °C or more.
Can you swim in Santiago de Cuba in August?
Yes. In August the sea averages 29.9 °C – almost as warm as a bath.
Does it rain much in Santiago de Cuba in August?
It rains often – on about 15 days, adding up to 81 mm.
Santiago de Cuba month by month
The whole year in Santiago de CubaAll destinations: CubaCaribbean weather in AugustWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences