Tahiti records about 1800mm of rain across roughly 150 wet days a year, which is a 41% chance on an average day. January is the wettest month at 280mm (16% of the annual total) and August the driest at 50mm. Local rain type: brief showers. Tropical showers are brief but intense — they pass in 20-30 minutes. The dry season (May-October) is noticeably drier and more comfortable. Rain enhances the lush tropical landscape.
Chance of rain on an average day: 41%
Rainfall climatology for Tahiti. 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.
Conditions on this page are recalculated from the latest forecast every time it is opened, for the current date in the location's own time zone. Showing .
| Annual rainfall | 1800mm |
| Rain days per year | 150 |
| Odds on an average day | 41% |
| Wettest month | January — 280mm over 24 days |
| Driest month | August — 50mm over 4 days |
| Rain type | brief showers |
| Best dry window | July and August offer the driest, most comfortable weather with lower humidity and clear lagoon conditions. |
| Worst rain window | January brings heavy tropical downpours — humidity is high and some island tours may be affected by rough seas. |
January delivers 460% more rain than August (280mm vs 50mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 16% of the annual total, so rain in Tahiti is spread through the year — there is no season you can rely on being dry.
Tahiti rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 24 days in January against 4 in August — 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 | 280mm | 24 | 80% | 31°C |
| February | 240mm | 21 | 70% | 31°C |
| March | 200mm | 17 | 57% | 31°C |
| April | 130mm | 11 | 37% | 30°C |
| May | 90mm | 8 | 27% | 29°C |
| June | 65mm | 6 | 20% | 28°C |
| July | 55mm | 5 | 17% | 28°C |
| August | 50mm | 4 | 13% | 28°C |
| September | 70mm | 6 | 20% | 28°C |
| October | 110mm | 10 | 33% | 29°C |
| November | 180mm | 16 | 53% | 30°C |
| December | 260mm | 23 | 77% | 31°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Tahiti 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.
Tahiti records rain on roughly 150 days a year — about a 41% chance on any given day — totalling around 1800mm.
January, with about 280mm over 24 rain days. That is 16% of the entire year's rainfall in a single month.
August is the driest month at 50mm across roughly 4 days. July and August offer the driest, most comfortable weather with lower humidity and clear lagoon conditions.
Tropical showers are brief but intense — they pass in 20-30 minutes. The dry season (May-October) is noticeably drier and more comfortable. Rain enhances the lush tropical landscape.
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.