Thailand Chiang Rai Weather in April — Climate Guide
April in Chiang Rai is low
Chiang Rai Weather in April — Quick Answer
As of 2026- Avg temp
- 36° / 22°
- Rainfall
- 60mm · 5 days
- Crowds
- Moderate
As of 2026, Chiang Rai in April averages a high of 36°C and low of 22°C with 60mm of rain over about 5 days. Hottest month + lingering haze early on. Very hot (36°C), warm nights (22°C). Light, breathable clothing, strong sun protection, and lots of water. Songkran (mid-April) means you will get soaked — waterproof your phone and bag.
April is low for Chiang Rai.
April is the hottest month (around 36°C) and brings the country's biggest party — Songkran, the Thai New Year water festival around April 13-15, when the streets turn into a citywide water fight. Early April still carries burning-season haze, which usually begins to ease late in the month as the first pre-monsoon showers arrive.
Songkran is the highlight and the reason to come this month — Chiang Rai's celebrations are lively but more low-key and local than Chiang Mai's famous chaos. Expect to get thoroughly soaked from buckets, hoses, and water guns; waterproof your phone and valuables and join in good-naturedly. The temples hold gentler water-blessing rituals alongside the street fun.
Travel score
Chiang Rai April Weather Stats
Avg High
36°C
Avg Low
22°C
Rainy Days
5
60mm total
Sunshine
8h
Daily avg
Humidity
60%
muggy
UV Index
11
Extreme
Wind
5 km/h
Gusts 13
Crowds
Moderate
At attractions
April Sunrise & Sunset
Air Quality
PM2.5
60 μg/m³
PM10
95 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
39°C
Nighttime
23°C
Humidity and wind affect how the actual temperature feels.
Wind
5 km/h
Max gust 13 km/h
Activities Recommended for April
April Travel Pros & Cons
Pros
- Songkran water festival (mid-April) — a major experience
- Haze eases later in the month
- First showers freshen the air late April
- Lower crowds outside the festival
Cons
- Hottest month (36°C)
- Burning-season haze early in the month
- Songkran prices and crowds mid-April
- Intense midday heat
April Events & Festivals
- Songkran (Thai New Year, ~Apr 13-15) — nationwide water festival
- Hottest month of the year
- Burning-season haze persists, easing later in the month
- First pre-monsoon showers begin
Chiang Rai in April — Full Picture
April is the hottest month (around 36°C) and brings the country's biggest party — Songkran, the Thai New Year water festival around April 13-15, when the streets turn into a citywide water fight. Early April still carries burning-season haze, which usually begins to ease late in the month as the first pre-monsoon showers arrive.
Songkran is the highlight and the reason to come this month — Chiang Rai's celebrations are lively but more low-key and local than Chiang Mai's famous chaos. Expect to get thoroughly soaked from buckets, hoses, and water guns; waterproof your phone and valuables and join in good-naturedly. The temples hold gentler water-blessing rituals alongside the street fun.
The heat is intense — plan outdoor sightseeing for mornings and evenings and retreat to air-con or riverside cafés midday. Early-month haze can still dull mountain views, though it's typically clearing by late April as humidity rises and the first storms break.
Pack light, breathable clothing, strong sun protection, plenty of water, and a waterproof pouch for Songkran. Prices and crowds rise around the festival, so book ahead for mid-April.
What to Wear & What to Pack
Hottest month + lingering haze early on. Very hot (36°C), warm nights (22°C). Light, breathable clothing, strong sun protection, and lots of water. Songkran (mid-April) means you will get soaked — waterproof your phone and bag.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current34.3°C
21°C
7.7/mo
Summer (Jun·Jul·Aug)
31.7°C
23°C
19/mo
Autumn (Sep·Oct·Nov)
30.3°C
20°C
12/mo
Winter (Dec·Jan·Feb)
28.7°C
14.7°C
1.3/mo
Chiang Rai Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 14° | 1d·10mm | 9h | 65% | 8 | Very busy | Peak |
| 31° | 16° | 1d·10mm | 9h | 60% | 9 | Busy | Peak | |
| 34° | 18° | 2d·20mm | 8h | 55% | 10 | Quiet | Low season | |
| 36° | 22° | 5d·60mm | 8h | 60% | 11 | Moderate | Shoulder | |
| 33° | 23° | 16d·200mm | 6.5h | 75% | 9 | Quiet | Low season | |
| 32° | 23° | 17d·160mm | 5.5h | 78% | 9 | Quiet | Low season | |
| 32° | 23° | 19d·190mm | 5h | 80% | 9 | Quiet | Low season | |
| 31° | 23° | 21d·230mm | 4.5h | 82% | 8 | Quiet | Low season | |
| 31° | 22° | 20d·215mm | 5h | 82% | 8 | Quiet | Low season | |
| 31° | 21° | 12d·110mm | 6.5h | 78% | 8 | Moderate | Shoulder | |
| November (Best) | 29° | 17° | 4d·40mm | 8.5h | 70% | 8 | Busy | Peak |
| December (Best) | 27° | 14° | 2d·15mm | 8.5h | 68% | 7 | Very busy | Peak |
View Other Months
Chiang Rai April Hotel Picks
Frequently Asked Questions
Is April a good time to visit Chiang Rai?
Chiang Rai in April is low. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Chiang Rai in April?
Chiang Rai April averages a high of 36°C and a low of 22°C.
Does it rain much in Chiang Rai in April?
Chiang Rai April averages 60mm of rainfall over about 5 rainy days.
What should I wear in Chiang Rai in April?
Hottest month + lingering haze early on. Very hot (36°C), warm nights (22°C). Light, breathable clothing, strong sun protection, and lots of water. Songkran (mid-April) means you will get soaked — waterproof your phone and bag.
What time are sunrise and sunset in Chiang Rai in April?
Chiang Rai April sunrise is 06:05 and sunset is 18:15, with 12h 10min of daylight.
What's the air quality like in Chiang Rai in April?
Chiang Rai April air quality (AQI) averages 90, rated Moderate. PM2.5 averages 60μg/m³.
What activities are recommended in Chiang Rai in April?
In April, Chiang Rai is great for Songkran water festival (mid-April), Early-morning and evening temple visits, Riverside cafés (midday heat escape).
Is April peak season in Chiang Rai?
Chiang Rai April crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Chiang Rai
View Other Months
Planning a April trip to Chiang Rai?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.