Our verdict
The best time to visit Chiang Rai is November-April
In the height of summer, temperatures in Chiang Rai can reach a maximum of 42℃ (107℉). The coldest it usually gets in winter-time in Chiang Rai is around 11℃ (51℉).
The sun stays up the longest in Chiang Rai in May, so you’ll get the most out of your daytime activities if you visit around this time. To stay dry, avoid travelling to Chiang Rai in August – It’s the wettest month of the year.
If you want to learn everything you need to know about the best times to travel to Chiang Rai, the weather and stats by month and so much more, make sure you keep reading. Once you’re ready, we’ve included a bunch of our favourite online booking tools to help you find the best deals on flights, accommodation and anything else you’ll need for your trip. Happy reading!
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Chiang Rai seasons
Before you continue, it’s important to know when the seasons are in Chiang Rai as they might be different to yours depending on where in the world you’re travelling from. Chiang Rai is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Chiang Rai
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Chiang Rai for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Chiang Rai climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Chiang Rai for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Chiang Rai in January
- Average temperature: 20℃ (68℉)
- Average high temperature: 28℃ (82℉)
- Average low temperature: 13℃ (56℉)
- Average humidity: 68%
- Average sunny days: 25 days
- Average rainfall: 20mm (1") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in January, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chiang Rai in February
- Average temperature: 23℃ (74℉)
- Average high temperature: 32℃ (90℉)
- Average low temperature: 16℃ (60℉)
- Average humidity: 48%
- Average sunny days: 26 days
- Average rainfall: 2mm (0") over 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in February, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chiang Rai in March
- Average temperature: 28℃ (82℉)
- Average high temperature: 36℃ (96℉)
- Average low temperature: 20℃ (69℉)
- Average humidity: 38%
- Average sunny days: 24 days
- Average rainfall: 9mm (0") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in March, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.
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Chiang Rai in April
- Average temperature: 30℃ (86℉)
- Average high temperature: 37℃ (99℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 44%
- Average sunny days: 16 days
- Average rainfall: 22mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in April, make sure you pack t-shirts, shorts and sun protection.
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Chiang Rai in May
- Average temperature: 29℃ (84℉)
- Average high temperature: 35℃ (95℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 63%
- Average sunny days: 7 days
- Average rainfall: 107mm (4") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in May, make sure you pack t-shirts, shorts and sun protection.
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Chiang Rai in June
- Average temperature: 26℃ (79℉)
- Average high temperature: 31℃ (88℉)
- Average low temperature: 23℃ (73℉)
- Average humidity: 80%
- Average sunny days: 1 days
- Average rainfall: 140mm (6") over 28 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in June, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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Chiang Rai in July
- Average temperature: 25℃ (77℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 87%
- Average sunny days: 1 days
- Average rainfall: 200mm (8") over 30 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in July, make sure you pack t-shirts and light clothing.
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Chiang Rai in August
- Average temperature: 25℃ (77℉)
- Average high temperature: 30℃ (86℉)
- Average low temperature: 22℃ (71℉)
- Average humidity: 86%
- Average sunny days: 0 days
- Average rainfall: 216mm (9") over 30 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in August, make sure you pack t-shirts and light clothing.
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Chiang Rai in September
- Average temperature: 25℃ (77℉)
- Average high temperature: 30℃ (87℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 83%
- Average sunny days: 4 days
- Average rainfall: 133mm (5") over 25 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in September, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
Chiang Rai in October
- Average temperature: 24℃ (76℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 19℃ (67℉)
- Average humidity: 79%
- Average sunny days: 9 days
- Average rainfall: 73mm (3") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chiang Rai in November
- Average temperature: 22℃ (72℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 17℃ (62℉)
- Average humidity: 77%
- Average sunny days: 18 days
- Average rainfall: 37mm (1") over 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in November, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Chiang Rai in December
- Average temperature: 20℃ (68℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 14℃ (58℉)
- Average humidity: 74%
- Average sunny days: 24 days
- Average rainfall: 15mm (1") over 6 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Chiang Rai in December, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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