Weather in Luang Prabang in April
Laos · 20-year averages, April
A hard month. April asks something of you. Go in knowing what. Daytime highs average 36.2 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
April ranks 7 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 on 11 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. 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: 20 days of the month clear 35 °C — that is not a heatwave, it is the month. Across the twenty years measured, the hottest April day reached 42.8 °C and the coldest night fell to 12.8 °C, and the wettest single day dropped 57 mm — roughly 93% of the month's rain in one day.
This is the volatile part. April rainfall has ranged from 5 mm to 198 mm across the twenty years measured — a 193 mm spread around an average of 61 mm. The average is real but almost no individual April looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 0.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 61%.
How April sits in the year
Temperatures hold steady either side: 34.7 °C in March, 36.2 here, 35.4 in May. Nothing about the timing within the month matters much. Rain is the thing that moves: May brings 7 days more of it, so the earlier half of a flexible trip is the safer half.
Daylight in April
12.6 hours of daylight, gaining 0.5 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
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Luang Prabang versus nearby
If Luang Prabang is one option among several, the nearby comparison is worth making. Udon Thani is the weaker option in April — within a degree on temperature, the same number of rain days. Sa Pa is a better bet in April — 11.5 °C cooler, 5 days more rain.
So: April is a compromise. December is 50 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 April.
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