Luang Prabang temples, waterfalls
Best months: October to April. Rainiest: July to September. Highs range from 81°F (27°C) to 94°F (34°C).
Best Time to Visit Laos
The best time to visit Laos: in Luang Prabang, October to April; in Vientiane, October to April; in Vang Vieng, October to March. The wettest stretch in Vang Vieng is June, July, August. It is hottest in Luang Prabang in April, with highs of 94°F (34°C). August in Vang Vieng brings about 27.6 in (700 mm) over 30 rainy days.
Climate normals were checked on September 29, 2026, over a year ago. An update is due.
Climate normals checked September 29, 2026 · Source: Open-Meteo (ERA5) · How we calculate
Laos weather by month
Colour shows the month rating for the best region. See the table below for month-by-month details.
- Jan82°FJanuary: Excellent
- Feb85°FFebruary: Excellent
- Mar90°FMarch: Excellent
- Apr94°FApril: Good
- May93°FMay: Mixed
- Jun91°FJune: Mixed
- Jul89°FJuly: Mixed
- Aug87°FAugust: Off-season
- Sep87°FSeptember: Mixed
- Oct85°FOctober: Good
- Nov85°FNovember: Excellent
- Dec82°FDecember: Excellent
Excellent Good Mixed Off-season
Laos air temperature by month
- Luang Prabang: air
- Vientiane: air
- Vang Vieng: air
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Luang Prabang: air | 81 | 87 | 93 | 94 | 93 | 91 | 89 | 87 | 87 | 85 | 85 | 81 |
| Vientiane: air | 82 | 85 | 90 | 94 | 91 | 88 | 87 | 86 | 86 | 86 | 85 | 82 |
| Vang Vieng: air | 81 | 84 | 89 | 92 | 90 | 87 | 86 | 85 | 86 | 86 | 86 | 81 |
Laos weather table, month by month
Long-term averages for each region. Tap a region to open its table.
Luang Prabang · temples, waterfalls
| Month | Day high | Night low | Rainy days | Rainfall | Humidity | Sun, h/day |
|---|---|---|---|---|---|---|
| January | 81°F (27°C) | 61°F (16°C) | 6 | 1.6 in (41 mm) | 76% | 9.4 |
| February | 87°F (30°C) | 63°F (17°C) | 2 | 0.7 in (17 mm) | 67% | 10.3 |
| March | 93°F (34°C) | 69°F (20°C) | 5 | 1.3 in (33 mm) | 67% | 10.2 |
| April | 94°F (34°C) | 72°F (22°C) | 10 | 3.1 in (79 mm) | 71% | 10.1 |
| May | 93°F (34°C) | 76°F (24°C) | 19 | 5.8 in (148 mm) | 77% | 10.4 |
| June | 91°F (33°C) | 76°F (25°C) | 23 | 7.2 in (182 mm) | 80% | 9.4 |
| July | 89°F (32°C) | 76°F (24°C) | 26 | 11.8 in (300 mm) | 85% | 8.4 |
| August | 87°F (30°C) | 75°F (24°C) | 28 | 15.6 in (397 mm) | 90% | 7.7 |
| September | 87°F (30°C) | 74°F (24°C) | 24 | 9.0 in (229 mm) | 88% | 9.2 |
| October | 85°F (30°C) | 72°F (22°C) | 13 | 3.6 in (91 mm) | 83% | 9.8 |
| November | 85°F (30°C) | 68°F (20°C) | 6 | 1.1 in (28 mm) | 77% | 9.6 |
| December | 81°F (27°C) | 62°F (17°C) | 4 | 1.2 in (30 mm) | 74% | 9.3 |
Vientiane · capital on the Mekong
| Month | Day high | Night low | Rainy days | Rainfall | Humidity | Sun, h/day |
|---|---|---|---|---|---|---|
| January | 82°F (28°C) | 64°F (18°C) | 2 | 0.7 in (18 mm) | 66% | 10.0 |
| February | 85°F (29°C) | 66°F (19°C) | 2 | 0.6 in (16 mm) | 64% | 10.4 |
| March | 90°F (32°C) | 72°F (22°C) | 7 | 1.9 in (47 mm) | 66% | 10.5 |
| April | 94°F (34°C) | 76°F (24°C) | 8 | 2.4 in (60 mm) | 64% | 10.8 |
| May | 91°F (33°C) | 78°F (25°C) | 22 | 8.1 in (207 mm) | 76% | 9.6 |
| June | 88°F (31°C) | 77°F (25°C) | 25 | 10.7 in (271 mm) | 83% | 8.5 |
| July | 87°F (31°C) | 76°F (25°C) | 26 | 14.5 in (369 mm) | 85% | 7.8 |
| August | 86°F (30°C) | 76°F (24°C) | 27 | 17.0 in (432 mm) | 86% | 7.1 |
| September | 86°F (30°C) | 75°F (24°C) | 26 | 13.8 in (350 mm) | 86% | 8.3 |
| October | 86°F (30°C) | 73°F (23°C) | 14 | 5.3 in (135 mm) | 79% | 9.8 |
| November | 85°F (30°C) | 70°F (21°C) | 3 | 0.9 in (24 mm) | 70% | 10.1 |
| December | 82°F (28°C) | 65°F (18°C) | 1 | 0.2 in (5 mm) | 65% | 9.8 |
Vang Vieng · karst hills, river
| Month | Day high | Night low | Rainy days | Rainfall | Humidity | Sun, h/day |
|---|---|---|---|---|---|---|
| January | 81°F (27°C) | 62°F (16°C) | 5 | 1.2 in (30 mm) | 75% | 9.8 |
| February | 84°F (29°C) | 64°F (18°C) | 4 | 1.2 in (30 mm) | 71% | 10.3 |
| March | 89°F (32°C) | 69°F (21°C) | 11 | 3.1 in (80 mm) | 74% | 10.3 |
| April | 92°F (33°C) | 73°F (23°C) | 14 | 4.0 in (102 mm) | 74% | 10.5 |
| May | 90°F (32°C) | 75°F (24°C) | 25 | 12.3 in (312 mm) | 83% | 9.5 |
| June | 87°F (30°C) | 74°F (24°C) | 29 | 21.4 in (544 mm) | 89% | 8.1 |
| July | 86°F (30°C) | 74°F (23°C) | 30 | 26.1 in (664 mm) | 91% | 7.3 |
| August | 85°F (29°C) | 74°F (23°C) | 30 | 27.6 in (700 mm) | 92% | 6.7 |
| September | 86°F (30°C) | 73°F (23°C) | 28 | 16.2 in (412 mm) | 90% | 8.5 |
| October | 86°F (30°C) | 71°F (22°C) | 20 | 5.3 in (134 mm) | 85% | 9.9 |
| November | 86°F (30°C) | 68°F (20°C) | 7 | 1.4 in (36 mm) | 78% | 9.9 |
| December | 81°F (27°C) | 62°F (17°C) | 4 | 0.9 in (22 mm) | 75% | 9.5 |
Best time to visit Laos for sightseeing and savings
| Goal | When to go |
|---|---|
| Sightseeing | Luang Prabang: October to February Vientiane: November to February Vang Vieng: November to February |
| Peak season | November to March |
| Cheaper: shoulder season | April, October |
- Sightseeing — highs 63–88°F (17–31°C), rain under 100 mm
- Peak season — the best weather rating of the year
- Cheaper: shoulder season — months next to peak season, weather still decent
Shoulder season is a weather-based estimate, not a price check: demand is lower in these months, so flights and hotels are usually cheaper than at peak. We do not compare prices here; check them for your dates.
- Compare with other destinations: where to go in January, where to go in February, where to go in March, where to go in November.
How to use it
- Read the calendar: green is in season, red is off-season.
- Open a region table for highs and lows, rainfall, rainy days, humidity and sunshine.
- Pick your goal in the “When to go” block: sightseeing or shoulder season.
- Compare with other destinations in “Where to go” for your month.
When to visit each region of Laos
Vientiane capital on the Mekong
Best months: October to April. Rainiest: May to September. Highs range from 82°F (28°C) to 94°F (34°C).
Vang Vieng karst hills, river
Best months: October to March. Rainiest: May to September. Highs range from 81°F (27°C) to 92°F (33°C).
Best time to visit Laos: FAQ
When is the best time to visit Laos?
The best time to visit Laos: in Luang Prabang, October to April; in Vientiane, October to April; in Vang Vieng, October to March. The wettest stretch in Vang Vieng is June, July, August. It is hottest in Luang Prabang in April, with highs of 94°F (34°C). August in Vang Vieng brings about 27.6 in (700 mm) over 30 rainy days.
What is Laos' rainy season?
Months with more than 200 mm (7.9 in) of rain: in Luang Prabang, July to September; in Vientiane, May to September; in Vang Vieng, May to September. The wettest month in Vang Vieng is August, with about 27.6 in (700 mm).
Is Laos hot all year?
Day highs in Luang Prabang range from 81°F (27°C) to 94°F (34°C). The hottest month is April in Luang Prabang, at 94°F (34°C).
Where the data comes from
- Air temperature, rainfall, humidity — ERA5 reanalysis (Copernicus / ECMWF) via Open-Meteo, averaged over 2015–2024. Each region uses one point: the resort or city in its caption.
- Sea temperature — Open-Meteo Marine, average sea surface temperature for 2023–2026 (the source has no longer record yet).
- Sunshine — sunshine duration from the same ERA5 reanalysis (Open-Meteo), average hours of sun per day for the month, 2015–2024.
- Rainy days — days with at least 1 mm (0.04 in) of rain. Reanalysis picks up light rain more often than weather stations, so treat this as an upper bound.
- Month rating — one rule for every destination, based on three factors: day highs (ideal 75–91°F / 24–33°C), monthly rainfall (ideal under 80 mm / 3.1 in) and, for beach regions, sea temperature (ideal 77°F / 25°C or warmer). All ideal means Excellent; one slightly weaker factor means Good. Mixed means heavy rain (150 mm / 5.9 in or more), highs above 97°F (36°C) or a sea below 70°F (21°C). Off-season means highs of 100°F (38°C) or more, cold below 54°F (12°C), over 350 mm (13.8 in) of rain, or several problems at once. A country's rating follows its best region, so check the regional table.
- Licence — weather data by Open-Meteo.com under CC BY 4.0; ERA5 reanalysis by the Copernicus Climate Change Service / ECMWF. The normals are precomputed and stored on this site, so the page sends no requests to the source.
Checked September 29, 2026. Climate normals are refreshed yearly and the notes every 90 days. These are long-term averages, not a forecast: any given year can differ.
