Kanchanaburi climate
Kanchanaburi (Thailand) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 28 °C82 °F, and about 1,242 mm49 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Kanchanaburi climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3289 | 2067 | 2678 | 120.5 |
| Feb | 3595 | 2271 | 2883 | 110.4 |
| Mar | 3798 | 2475 | 3087 | 461.8 |
| Apr | 3799 | 2678 | 3189 | 652.5 |
| May | 3493 | 2577 | 3085 | 1495.9 |
| Jun | 3290 | 2476 | 2883 | 1485.8 |
| Jul | 3289 | 2475 | 2882 | 1777.0 |
| Aug | 3188 | 2474 | 2781 | 1676.6 |
| Sep | 3187 | 2475 | 2781 | 2208.6 |
| Oct | 3086 | 2374 | 2780 | 2007.9 |
| Nov | 3086 | 2271 | 2678 | 421.6 |
| Dec | 3085 | 1967 | 2476 | 70.3 |
| Year | 3799 | 1967 | 2882 | 1,24249 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 66% | 37% | 4.8 | 11:23 |
| Feb | 60% | 33% | 5.3 | 11:40 |
| Mar | 58% | 44% | 5.6 | 12:01 |
| Apr | 61% | 53% | 6.1 | 12:26 |
| May | 74% | 81% | 5.6 | 12:46 |
| Jun | 80% | 90% | 5.2 | 12:57 |
| Jul | 81% | 91% | 4.9 | 12:53 |
| Aug | 82% | 94% | 4.7 | 12:35 |
| Sep | 85% | 90% | 4.8 | 12:11 |
| Oct | 85% | 73% | 4.6 | 11:48 |
| Nov | 81% | 53% | 4.7 | 11:28 |
| Dec | 73% | 41% | 4.6 | 11:18 |
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 Kanchanaburi is like
The warmest month is April, with an average high of 37 °C99 °F and a low of 26 °C78 °F. The coldest is December, when highs average 30 °C85 °F and lows 19 °C67 °F. Seasonal differences are small — just 6.9 °C12.5 °F between the warmest and the coolest month.
It is wet, with about 1,242 mm49 in of precipitation per year. The wettest three-month stretch is August–October, which brings 47% of the annual total. Months with less than 20 mm0.8 in on average: December–February. The wettest month is September (220 mm8.6 in), the driest is December (7 mm0.3 in).
Relative humidity ranges from 58% in March to 85% in October. The clearest skies (lowest average cloud amount, 33%) are typical of February. Average wind speed near the ground ranges from 5 km/h (3 mph) in October to 8 km/h (5 mph) in August. Daylight lasts from about 11.3 hours in December to 12.9 hours in June.
Best time to visit Kanchanaburi
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December: average highs of 30 °C85 °F to 30 °C85 °F with 7 mm0.3 in to 7 mm0.3 in of precipitation per month.
The most challenging month is September, which is hot, with average highs of 31 °C87 °F, very wet (220 mm8.6 in) and humid (85% 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 Kanchanaburi
- Wetter months (May–October) — highs 3086 to 34 °C93 °F, lows 2374 to 25 °C77 °F, about 177 mm7.0 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 3085 to 37 °C99 °F, lows 1967 to 26 °C78 °F, about 30 mm1.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Kanchanaburi compares
Compared with Ban I Chang, about 50 km to the southeast, Kanchanaburi is on average 0.3 °C0.5 °F cooler and receives 8% more precipitation (1,242 mm49 in vs 1,147 mm45 in). The difference is largest in August (0.9 °C1.6 °F cooler).
Of the 22 places in Thailand covered by World Climates, Kanchanaburi is the 10th warmest by annual mean temperature and the 18th 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 (seasons shifted for the other hemisphere where needed): Siem Reap (Cambodia, Aw), Cuiabá (Brazil, Aw) and Dawei (Myanmar, Aw).
Nearby places
- Ban I Chang 50 km · 28 °C82 °F · 1,147 mm45 in
- Nakhon Pathom 57 km · 28 °C82 °F · 1,195 mm47 in
- Bangkok 107 km · 28 °C82 °F · 1,361 mm54 in
- Khlong Luang 119 km · 28 °C82 °F · 1,361 mm54 in
- Samut Prakan 122 km · 28 °C82 °F · 1,302 mm51 in
- Dawei 147 km · 27 °C81 °F · 1,748 mm69 in
- Hua Hin 165 km · 28 °C82 °F · 1,431 mm56 in
- Chon Buri 171 km · 27 °C81 °F · 1,508 mm59 in
Frequently asked questions
What is the warmest month in Kanchanaburi?
April is the warmest month in Kanchanaburi, with an average high of 37 °C (99 °F) and an average low of 26 °C (78 °F).
What is the coldest month in Kanchanaburi?
December is the coldest month, with an average high of 30 °C (85 °F) and an average low of 19 °C (67 °F).
When does it rain the most in Kanchanaburi?
September is the wettest month with about 220 mm (8.6 in) of precipitation; December is the driest with about 7 mm (0.3 in).
What is the best time to visit Kanchanaburi?
Judging by long-term averages, the most comfortable months are 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.
The grid cell’s average elevation is 204 m, while Kanchanaburi lies at about 33 m. Temperatures on this page were therefore adjusted by +1.1 °C2 °F using the standard lapse rate of 6.5 °C per 1,000 m.