Luang Prabang records about 1360mm of rain across roughly 120 wet days a year, which is a 33% chance on an average day. August is the wettest month at 260mm (19% of the annual total) and January the driest at 15mm. Local rain type: monsoon. The dry season (November-April) is virtually rain-free and perfect for exploring. The wet season brings heavy monsoon downpours, usually in the afternoon — mornings remain dry enough for the alms-giving ceremony.
Chance of rain on an average day: 33%
Rainfall climatology for Luang Prabang. 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 | 1360mm |
| Rain days per year | 120 |
| Odds on an average day | 33% |
| Wettest month | August — 260mm over 24 days |
| Driest month | January — 15mm over 1 days |
| Rain type | monsoon |
| Best dry window | November through February is the cool, dry season with clear skies and comfortable temperatures. |
| Worst rain window | July through September brings the heaviest monsoon rain — the Mekong can rise 10+ meters and the confluence becomes dramatically turbulent. |
August delivers 1633% more rain than January (260mm vs 15mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 19% of the annual total, so rain in Luang Prabang is spread through the year — there is no season you can rely on being dry.
Luang Prabang rain arrives in short, heavy bursts — shelter and timing matter more than gear.
Rain falls on about 24 days in August against 1 in January — 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 | 15mm | 1 | 3% | 27°C |
| February | 20mm | 2 | 7% | 27°C |
| March | 35mm | 3 | 10% | 28°C |
| April | 100mm | 9 | 30% | 30°C |
| May | 150mm | 14 | 47% | 31°C |
| June | 170mm | 16 | 53% | 33°C |
| July | 220mm | 20 | 67% | 34°C |
| August | 260mm | 24 | 80% | 34°C |
| September | 180mm | 17 | 57% | 33°C |
| October | 100mm | 9 | 30% | 31°C |
| November | 30mm | 3 | 10% | 30°C |
| December | 15mm | 1 | 3% | 28°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Luang Prabang 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.
Luang Prabang records rain on roughly 120 days a year — about a 33% chance on any given day — totalling around 1360mm.
August, with about 260mm over 24 rain days. That is 19% of the entire year's rainfall in a single month.
January is the driest month at 15mm across roughly 1 days. November through February is the cool, dry season with clear skies and comfortable temperatures.
The dry season (November-April) is virtually rain-free and perfect for exploring. The wet season brings heavy monsoon downpours, usually in the afternoon — mornings remain dry enough for the alms-giving ceremony.
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.