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Chiang Rai weather by month
Check out Chiang Rai weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Chiang Rai (°F)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 81 |
88 |
91 |
93 |
91 |
88 |
88 |
86 |
86 |
84 |
82 |
79 |
| Min temperature (night-time) | 54 |
55 |
61 |
68 |
72 |
73 |
73 |
72 |
72 |
68 |
63 |
54 |
| Heat & Humidity | L |
M |
H |
VH |
VH |
VH |
H |
H |
H |
H |
M |
L |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Chiang Rai
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 11 |
11 |
12 |
13 |
13 |
13 |
13 |
13 |
12 |
12 |
11 |
11 |
| UV Index (Maximum) | 8 |
10 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
10 |
8 |
7 |
Rainfall in Chiang Rai
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 2 |
1 |
3 |
10 |
17 |
19 |
22 |
24 |
18 |
12 |
6 |
3 |
| Average monthly rainfall (inches) | 0.6 |
0.3 |
0.8 |
3.2 |
8.0 |
8.5 |
11.6 |
15.2 |
10.2 |
5.3 |
2.2 |
0.9 |
More about Chiang Rai
Chiang Rai by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Thailand
The climate guide for Thailand (Chiang Rai) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Chiang Rai?
Chiang Rai has a hot tropical climate with a winter dry season.
Chiang Rai weather in January
Expect daytime maximum temperatures of 81°F in Chiang Rai, Thailand in January based on long-term weather averages. There are 8 hours of sunshine per day on average.
- 81°F max day temperature
81 - 8 hours of sunshine per day
- 2 days with some rainfall
2 - 54°F min night temperature
54 - 11 hours of daylight per day
11 - Low heat & humidity
L - 0.6 inches of monthly rainfall
0.6 - 8 (Very High) UV index
8
Chiang Rai weather in February
Expect daytime maximum temperatures of 88°F in Chiang Rai, Thailand in February based on long-term weather averages. There are 9 hours of sunshine per day on average.
- 88°F max day temperature
88 - 9 hours of sunshine per day
- 1 day with some rainfall
1 - 55°F min night temperature
55 - 11 hours of daylight per day
11 - Moderate heat & humidity
M - 0.3 inches of monthly rainfall
0.3 - 10 (Very High) UV index
10
Chiang Rai weather in March
Expect daytime maximum temperatures of 91°F in Chiang Rai, Thailand in March and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average.
- 91°F max day temperature
91 - 8 hours of sunshine per day
- 3 days with some rainfall
3 - 61°F min night temperature
61 - 12 hours of daylight per day
12 - High heat & humidity
H - 0.8 inches of monthly rainfall
0.8 - 11+ (Extreme) UV index
11
Chiang Rai weather in April
Expect daytime maximum temperatures of 93°F in Chiang Rai, Thailand in April and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 3.2 inches of rainfall in the month.
- 93°F max day temperature
93 - 8 hours of sunshine per day
- 10 days with some rainfall
10 - 68°F min night temperature
68 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 3.2 inches of monthly rainfall
3.2 - 11+ (Extreme) UV index
11
Chiang Rai weather in May
Expect daytime maximum temperatures of 91°F in Chiang Rai, Thailand in May and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 17 days with some rainfall and typically 8.0 inches of rainfall in the month.
- 91°F max day temperature
91 - 7 hours of sunshine per day
- 17 days with some rainfall
17 - 72°F min night temperature
72 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 8.0 inches of monthly rainfall
8.0 - 11+ (Extreme) UV index
11
Chiang Rai weather in June
Expect daytime maximum temperatures of 88°F in Chiang Rai, Thailand in June and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 8.5 inches of rainfall in the month.
- 88°F max day temperature
88 - 5 hours of sunshine per day
- 19 days with some rainfall
19 - 73°F min night temperature
73 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 8.5 inches of monthly rainfall
8.5 - 11+ (Extreme) UV index
11
Chiang Rai weather in July
Expect daytime maximum temperatures of 88°F in Chiang Rai, Thailand in July and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 22 days with some rainfall and typically 11.6 inches of rainfall in the month.
- 88°F max day temperature
88 - 5 hours of sunshine per day
- 22 days with some rainfall
22 - 73°F min night temperature
73 - 13 hours of daylight per day
13 - High heat & humidity
H - 11.6 inches of monthly rainfall
11.6 - 11+ (Extreme) UV index
11
Chiang Rai weather in August
Expect daytime maximum temperatures of 86°F in Chiang Rai, Thailand in August and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 24 days with some rainfall and typically 15.2 inches of rainfall in the month.
- 86°F max day temperature
86 - 5 hours of sunshine per day
- 24 days with some rainfall
24 - 72°F min night temperature
72 - 13 hours of daylight per day
13 - High heat & humidity
H - 15.2 inches of monthly rainfall
15.2 - 11+ (Extreme) UV index
11
Chiang Rai weather in September
Expect daytime maximum temperatures of 86°F in Chiang Rai, Thailand in September and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 10.2 inches of rainfall in the month.
- 86°F max day temperature
86 - 6 hours of sunshine per day
- 18 days with some rainfall
18 - 72°F min night temperature
72 - 12 hours of daylight per day
12 - High heat & humidity
H - 10.2 inches of monthly rainfall
10.2 - 11+ (Extreme) UV index
11
Chiang Rai weather in October
Expect daytime maximum temperatures of 84°F in Chiang Rai, Thailand in October and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 5.3 inches of rainfall in the month.
- 84°F max day temperature
84 - 7 hours of sunshine per day
- 12 days with some rainfall
12 - 68°F min night temperature
68 - 12 hours of daylight per day
12 - High heat & humidity
H - 5.3 inches of monthly rainfall
5.3 - 10 (Very High) UV index
10
Chiang Rai weather in November
Expect daytime maximum temperatures of 82°F in Chiang Rai, Thailand in November based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.2 inches of rainfall in the month.
- 82°F max day temperature
82 - 7 hours of sunshine per day
- 6 days with some rainfall
6 - 63°F min night temperature
63 - 11 hours of daylight per day
11 - Moderate heat & humidity
M - 2.2 inches of monthly rainfall
2.2 - 8 (Very High) UV index
8
Chiang Rai weather in December
Expect daytime maximum temperatures of 79°F in Chiang Rai, Thailand in December based on long-term weather averages. There are 7 hours of sunshine per day on average.
- 79°F max day temperature
79 - 7 hours of sunshine per day
- 3 days with some rainfall
3 - 54°F min night temperature
54 - 11 hours of daylight per day
11 - Low heat & humidity
L - 0.9 inches of monthly rainfall
0.9 - 7 (High) UV index
7
More about Chiang Rai
Chiang Rai by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Thailand
- Explore latest special offers & online deals from TUI
- Free child places & £0 deposits with direct debit available
- Book summer & winter sun holidays in 2026/2027
The climate guide for Thailand (Chiang Rai) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Compare Chiang Rai weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Chiang Rai, Thailand and the UK (London).
Maximum daytime temperature (°F)
Metric (°C) | Imperial (°F)
More about Thailand
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