Havana records about 1220mm of rain across roughly 80 wet days a year, which is a 22% chance on an average day. June is the wettest month at 180mm (15% of the annual total) and March the driest at 45mm. Local rain type: thunderstorms. Havana's dry season (November-April) is ideal with warm temperatures and minimal rain. The wet season brings dramatic Caribbean thunderstorms — heavy but short-lived. Hurricane season runs June through November.
Chance of rain on an average day: 22%
Rainfall climatology for Havana. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 1220mm |
| Rain days per year | 80 |
| Odds on an average day | 22% |
| Wettest month | June — 180mm over 12 days |
| Driest month | March — 45mm over 3 days |
| Rain type | thunderstorms |
| Best dry window | December through March offers the driest, most comfortable weather with lower humidity and cool breezes. |
| Worst rain window | June and September-October bring the heaviest rain, with hurricane risk peaking in September and October. |
June delivers 300% more rain than March (180mm vs 45mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 15% of the annual total, so rain in Havana is spread through the year — there is no season you can rely on being dry.
Havana rain arrives in short, heavy bursts — shelter and timing matter more than gear.
Rain falls on about 12 days in June against 3 in March — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 65mm | 4 | 13% | 26°C |
| February | 50mm | 3 | 10% | 26°C |
| March | 45mm | 3 | 10% | 27°C |
| April | 55mm | 4 | 13% | 28°C |
| May | 120mm | 8 | 27% | 30°C |
| June | 180mm | 12 | 40% | 31°C |
| July | 125mm | 8 | 27% | 32°C |
| August | 135mm | 9 | 30% | 32°C |
| September | 150mm | 10 | 33% | 31°C |
| October | 170mm | 11 | 37% | 30°C |
| November | 80mm | 5 | 17% | 28°C |
| December | 55mm | 4 | 13% | 27°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Havana we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Havana records rain on roughly 80 days a year — about a 22% chance on any given day — totalling around 1220mm.
June, with about 180mm over 12 rain days. That is 15% of the entire year's rainfall in a single month.
March is the driest month at 45mm across roughly 3 days. December through March offers the driest, most comfortable weather with lower humidity and cool breezes.
Havana's dry season (November-April) is ideal with warm temperatures and minimal rain. The wet season brings dramatic Caribbean thunderstorms — heavy but short-lived. Hurricane season runs June through November.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.