Weather in Chiang Rai: September
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Average day temperature: | 86.4°F |
| Average night temperature: | 71.1°F | |
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Number of sunny days: | 5 days |
| Day length: | 12.0 - 12.5 hours | |
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Number of rainy days: | 12 days |
| Precipitation totals: | 6.2 in. | |
| more information | ||
14 days
forecast
forecast
| Chiang Rai |
weather in
October
October
| Chiang Rai |
Air temperature in September, °F
Show year:
2026
2025
2024
The highest day temperature during September of 2026 was 85°F. At the same time the lowest night temperature was 68°F. Daily and nightly averages during September were 79.3°F and 72.4°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Chiang Rai in September is 6.6 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 2.1 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 3.8.
Best time for vacation in Chiang Rai
Chiang Rai on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Chiang Rai
Local time: 13:20
September 29, tuesday
1500
70°F
N
3 mph
3 mph
1800
73°F
N
2 mph
2 mph
2100
73°F
E
1 mph
1 mph
September 30, wednesday
0000
72°F
E
1 mph
1 mph
0300
70°F
E
1 mph
1 mph
0600
68°F
SW
1 mph
1 mph
0900
70°F
N
2 mph
2 mph
1200
79°F
N
4 mph
4 mph
