Weather in Luang Prabang in March
Laos · 20-year averages, March
A hard month. March asks something of you. Go in knowing what. Daytime highs average 34.7 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
March ranks 6 of 12 in Luang Prabang: past the worst of the year but short of December, which is the month to book if the dates are open.
Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.
What the averages hide
Averages flatten a month, and this one hides a few things: 16 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest March day reached 40.7 °C and the coldest night fell to 10.1 °C, and the wettest single day dropped 42 mm — roughly 135% of the month's rain in one day.
This is the volatile part. March rainfall has ranged from 1 mm to 112 mm across the twenty years measured — a 111 mm spread around an average of 31 mm. The average is real but almost no individual March looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 56%.
How March sits in the year
Temperatures hold steady either side: 32.2 °C in February, 34.7 here, 36.2 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 6 days more of it, so the earlier half of a flexible trip is the safer half.
Daylight in March
12 hours of daylight, gaining 0.6 hours across the month. That is between Luang Prabang's extremes of 13.3 and 10.9 hours, so days are long enough not to constrain the plan.
An inland climate
Despite being inland, the year stays fairly even: 20.7 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Luang Prabang versus nearby
If Luang Prabang is one option among several, the nearby comparison is worth making. Udon Thani is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Sa Pa is a better bet in March — 12.9 °C cooler, 4 days more rain.
So: March is a compromise. December is 42 points better and is what Luang Prabang is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Luang Prabang
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 29.3 | 15.7 | 2 | 14 | 65 | 11 | 86 |
| February | 32.2 | 18 | 1 | 6 | 58 | 11.5 | 75 |
| March | 34.7 | 20.8 | 5 | 31 | 56 | 12 | 48 |
| April | 36.2 | 23.5 | 11 | 61 | 61 | 12.6 | 40 |
| May | 35.4 | 24.5 | 18 | 121 | 70 | 13.1 | 29 |
| June | 34.2 | 24.8 | 18 | 116 | 76 | 13.3 | 35 |
| July | 32.6 | 24.4 | 24 | 219 | 82 | 13.2 | 38 |
| August | 32.1 | 24.3 | 24 | 234 | 84 | 12.8 | 38 |
| September | 32.4 | 23.8 | 19 | 127 | 81 | 12.3 | 40 |
| October | 32.4 | 22 | 10 | 55 | 75 | 11.7 | 58 |
| November | 30.8 | 18.7 | 5 | 23 | 70 | 11.2 | 75 |
| December | 28.5 | 15.5 | 2 | 12 | 68 | 10.9 | 90 |
See all twelve months in Luang Prabang, or where else to go in March.
Planning the rest of the trip
- Flight time to Luang Prabang how long you are actually in the air
- Luang Prabang time zone and the difference from home
- Days until your trip count down to the departure date