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Chalong Weather in September
September in Chalong typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). September falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Chalong in September
As part of the rainy season, Chalong sees around 22 days of rain in September, with an average of 292 mm (11 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Chalong in September
In September, Chalong sees high temperatures, with highs of 29°C (84°F). Nights drop to around 26°C (79°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Chalong in September
With about 100 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.September in Chalong has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Chalong Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
75%
Precipitation
292 mm (11 in)
Rainy days
22 days
Humidity
82% *
Sunshine
100 hours *
Percentage Sunshine
*
* Data from: Phuket, Thailand (28 KM, 17 Miles).
Chalong Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chalong - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Chalong typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Chalong in September
Browse day-by-day weather records for Chalong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Chalong historical weather extremes in September
According to our 50 years of weather records for Chalong, the following extremes were recorded between 1976 and 2026.
- The warmest day in September was on September 1, 2010, with a maximum of 37°C (99°F).
- On September 4, 1994, Chalong saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The lowest overnight temperature recorded in September was 20°C (68°F) (September 1, 1994).
Best Places in Thailand in September
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Chalong in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Chalong in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Chalong 3-Day Forecast
More climate data for Chalong
Temperature Rainfall Sunshine Humidity
See the full Chalong climate overview or explore weather in Thailand.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bangkok
34°C (93°F) Chiang Mai33°C (91°F) Jomtien Beach32°C (90°F) Hua Hin32°C (90°F) Ao Nang Beach30°C (86°F) Koh Samui30°C (86°F) Ko Lanta30°C (86°F) Patong Beach29°C (84°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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