Guantanamo Weather in September
With daytime temperatures of 32°C (90°F) and nighttime lows of 26°C (79°F), September in Guantanamo brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 88 mm (3.5 in) falls on average.
Rainfall in Guantanamo in September
On average, there are about 14 days with rain during this month, averaging 88 mm (3.5 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Guantanamo in September
Guantanamo in September gets highs of 32°C (90°F) during the day and drops to 26°C (79°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.If you prefer dry days with pleasant temperatures, January, February, March and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cuba, check out our Guantanamo's climate page.
Guantanamo Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
32°C (90°F)
Chance of Rain
47%
Precipitation
88 mm (3.5 in)
Rainy days
14 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Guantanamo typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Guantanamo in September
Browse day-by-day weather records for Guantanamo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guantanamo historical weather extremes in September
According to our 49 years of weather records for Guantanamo, the following extremes were recorded between 1976 and 2025.
- Guantanamo recorded its highest September temperature of 37°C (99°F) on September 4, 2018.
- On September 21, 2002, Guantanamo saw its coldest September day with temperatures maxing out at 27°C (81°F).
- The coldest night in September in Guantanamo was on September 20, 1977, with a minimum of 18°C (64°F).
Best Places in Cuba in September
Find out more about the weather in Cuba and which places have the best travel conditions in this month. See all of Cuba in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Guantanamo in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.What To Do in Guantanamo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cuba, check out our Guantanamo's climate page.
See the full Guantanamo climate overview or explore weather in Cuba.
