Puerto Vallarta records about 1382mm of rain across roughly 82 wet days a year, which is a 22% chance on an average day. September is the wettest month at 315mm (23% of the annual total) and March the driest at 2mm. Local rain type: monsoon. Puerto Vallarta has an extreme wet/dry split — summer monsoon brings daily torrential rain while winter is bone-dry. Plan accordingly.
Chance of rain on an average day: 22%
Rainfall climatology for Puerto Vallarta. 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 | 1382mm |
| Rain days per year | 82 |
| Odds on an average day | 22% |
| Wettest month | September — 315mm over 19 days |
| Driest month | March — 2mm over 1 days |
| Rain type | monsoon |
| Best dry window | November through May offers dry, warm to hot conditions with zero rain. |
| Worst rain window | July through September brings daily torrential afternoon downpours. |
September delivers 15650% more rain than March (315mm vs 2mm). That gap is the difference between planning around showers and ignoring them.
23% of the year's rain falls in September alone, so Puerto Vallarta has a genuine wet season rather than evenly spread showers.
Puerto Vallarta rain arrives in short, heavy bursts — shelter and timing matter more than gear.
Rain falls on about 19 days in September against 1 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 | 18mm | 1 | 3% | 26°C |
| February | 4mm | 1 | 3% | 26°C |
| March | 2mm | 1 | 3% | 27°C |
| April | 3mm | 1 | 3% | 29°C |
| May | 10mm | 1 | 3% | 30°C |
| June | 195mm | 12 | 40% | 32°C |
| July | 300mm | 18 | 60% | 33°C |
| August | 310mm | 19 | 63% | 33°C |
| September | 315mm | 19 | 63% | 32°C |
| October | 145mm | 9 | 30% | 30°C |
| November | 30mm | 2 | 7% | 29°C |
| December | 12mm | 1 | 3% | 27°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Puerto Vallarta 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.
Puerto Vallarta records rain on roughly 82 days a year — about a 22% chance on any given day — totalling around 1382mm.
September, with about 315mm over 19 rain days. That is 23% of the entire year's rainfall in a single month.
March is the driest month at 2mm across roughly 1 days. November through May offers dry, warm to hot conditions with zero rain.
Puerto Vallarta has an extreme wet/dry split — summer monsoon brings daily torrential rain while winter is bone-dry. Plan accordingly.
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.