Ban I Chang climate
Ban I Chang (Thailand) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C82 °F, and about 1,147 mm45 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Ban I Chang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3289 | 2169 | 2679 | 190.7 |
| Feb | 3493 | 2373 | 2883 | 110.4 |
| Mar | 3595 | 2476 | 3086 | 491.9 |
| Apr | 3696 | 2679 | 3187 | 612.4 |
| May | 3493 | 2679 | 3086 | 1375.4 |
| Jun | 3290 | 2578 | 2984 | 1234.8 |
| Jul | 3290 | 2576 | 2883 | 1234.9 |
| Aug | 3289 | 2576 | 2883 | 1174.6 |
| Sep | 3187 | 2476 | 2882 | 2068.1 |
| Oct | 3086 | 2475 | 2781 | 2339.2 |
| Nov | 3086 | 2272 | 2679 | 582.3 |
| Dec | 3086 | 2069 | 2577 | 100.4 |
| Year | 3696 | 2069 | 2882 | 1,14745 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 66% | 44% | 4.8 | 11:24 |
| Feb | 64% | 38% | 5.3 | 11:41 |
| Mar | 64% | 48% | 5.5 | 12:01 |
| Apr | 65% | 61% | 5.9 | 12:26 |
| May | 73% | 87% | 5.2 | 12:45 |
| Jun | 76% | 92% | 4.8 | 12:56 |
| Jul | 76% | 93% | 4.6 | 12:52 |
| Aug | 76% | 95% | 4.5 | 12:35 |
| Sep | 81% | 93% | 4.7 | 12:11 |
| Oct | 84% | 83% | 4.4 | 11:48 |
| Nov | 80% | 65% | 4.5 | 11:28 |
| Dec | 72% | 51% | 4.6 | 11:19 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Ban I Chang is like
The warmest month is April, with an average high of 36 °C96 °F and a low of 26 °C79 °F. The coldest is December, when highs average 30 °C86 °F and lows 20 °C69 °F. Seasonal differences are small — just 5.6 °C10 °F between the warmest and the coolest month.
It is wet, with about 1,147 mm45 in of precipitation per year. The wettest three-month stretch is August–October, which brings 48% of the annual total. Months with less than 20 mm0.8 in on average: December–February. The wettest month is October (233 mm9.2 in), the driest is December (10 mm0.4 in).
Relative humidity ranges from 64% in March to 84% in October. The clearest skies (lowest average cloud amount, 38%) are typical of February. Average wind speed near the ground ranges from 6 km/h (4 mph) in October to 9 km/h (6 mph) in March. Daylight lasts from about 11.3 hours in December to 12.9 hours in June.
Best time to visit Ban I Chang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November and December: average highs of 30 °C86 °F to 30 °C86 °F with 10 mm0.4 in to 58 mm2.3 in of precipitation per month.
The most challenging month is October, which is very wet (233 mm9.2 in) and humid (84% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Ban I Chang
- Wetter months (May–October) — highs 3086 to 34 °C93 °F, lows 2475 to 26 °C79 °F, about 156 mm6.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Drier months (November–April) — highs 3086 to 36 °C96 °F, lows 2069 to 26 °C79 °F, about 35 mm1.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Ban I Chang compares
Compared with Bangkok, about 66 km to the east, Ban I Chang has practically the same average temperature and receives 16% less precipitation (1,147 mm45 in vs 1,361 mm54 in). The difference is largest in August (0.7 °C1.2 °F warmer).
Of the 22 places in Thailand covered by World Climates, Ban I Chang is the 5th warmest by annual mean temperature and the 22nd wettest by annual precipitation. See all of them on the Thailand climate page.
Places in other countries with the most similar temperature and rainfall pattern: Siem Reap (Cambodia, Aw), Phnom Penh (Cambodia, Aw) and Myeik (Myanmar, Aw).
Nearby places
- Nakhon Pathom 20 km · 28 °C82 °F · 1,195 mm47 in
- Kanchanaburi 50 km · 28 °C82 °F · 1,242 mm49 in
- Bangkok 66 km · 28 °C82 °F · 1,361 mm54 in
- Samut Prakan 77 km · 28 °C82 °F · 1,302 mm51 in
- Khlong Luang 90 km · 28 °C82 °F · 1,361 mm54 in
- Chon Buri 124 km · 27 °C81 °F · 1,508 mm59 in
- Hua Hin 127 km · 28 °C82 °F · 1,431 mm56 in
- Si Racha 127 km · 28 °C83 °F · 1,347 mm53 in
Frequently asked questions
What is the warmest month in Ban I Chang?
April is the warmest month in Ban I Chang, with an average high of 36 °C (96 °F) and an average low of 26 °C (79 °F).
What is the coldest month in Ban I Chang?
December is the coldest month, with an average high of 30 °C (86 °F) and an average low of 20 °C (69 °F).
When does it rain the most in Ban I Chang?
October is the wettest month with about 233 mm (9.2 in) of precipitation; December is the driest with about 10 mm (0.4 in).
What is the best time to visit Ban I Chang?
Judging by long-term averages, the most comfortable months are November and December.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.