Havana is warmest in May, averaging 33° by day and 24° at night. The wettest month is June with 297 mm, and the year brings about 1410 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 28° | 20° | 25 mm | 26° | 10.7 h | Beach weather |
| February | 29° | 20° | 42 mm | 26° | 11.2 h | Beach weather |
| March | 31° | 20° | 56 mm | 26° | 11.8 h | Beach weather |
| April | 32° | 23° | 63 mm | 27° | 12.5 h | Beach weather |
| May | 33° | 24° | 124 mm | 28° | 13.1 h | Mild |
| June | 31° | 26° | 297 mm | 29° | 13.4 h | Rainy season |
| July | 32° | 26° | 164 mm | 30° | 13.3 h | Mild |
| August | 32° | 26° | 223 mm | 30° | 12.8 h | Rainy season |
| September | 31° | 26° | 204 mm | 30° | 12.1 h | Rainy season |
| October | 30° | 25° | 90 mm | 29° | 11.4 h | Beach weather |
| November | 28° | 22° | 75 mm | 28° | 10.9 h | Beach weather |
| December | 27° | 21° | 47 mm | 27° | 10.6 h | Beach weather |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: January, February, March, April, October, November and December — highs around 29°, nights no colder than 20°, and at most 90 mm of rain in a month. The sea sits at 26–29° then.
Wet season: June, August and September — up to 297 mm in a single month.