Bang Ban climate — normals and trends
Bang Ban (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.2 °C and it receives 1,322 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (30.4 °C on average) and the coldest is December (25.9 °C). Rainfall peaks in September.
Bang Ban averages 0 frost days, 333 hot days (≥ 30 °C) and 180 rainy days per year.
Bang Ban has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.8 °C (on 4 May 1980) and the coldest 11.8 °C (on 12 January 1955).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Bang BanPhra Nakhon Si Ayutthaya
- coords
- 14.37°, 100.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
28.2°C
Average daily high
33.2°C
Average daily low
24.4°C
Annual rainfall
1,322mm
Sunshine / day
10.1h
Mean relative humidity
72%
Average peak wind
12.8km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
333 d/yr
Rainy days (≥ 1 mm)
180 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.8 °C
Average feels-like low
28.3 °C
Average peak gust
30.2 km/h
Tropical nights (≥ 20 °C)
341 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.73 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.8 °C
4 May 1980
Coldest day
11.8 °C
12 January 1955
Wettest day
122 mm
12 September 2006
Windiest day
29.8 km/h
3 November 2009
Strongest gust
71.6 km/h
19 July 1962
Hottest feels-like
47.8 °C
18 April 1953
Coldest feels-like
8.6 °C
12 January 1955
Sunniest day
12.8 h
13 July 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.6 °C | -0.6 °C | 0 mm | -15 mm |
| Feb | 33.9 °C | +0.3 °C | 24 mm | -3 mm |
| Mar | 35.5 °C | +0.3 °C | 53 mm | +6 mm |
| Apr | 36.0 °C | 0.0 °C | 72 mm | -8 mm |
| May | 33.7 °C | -0.9 °C | 257 mm | +98 mm |
| Jun | 33.7 °C | +0.2 °C | 137 mm | -17 mm |
| Jul | 32.9 °C | 0.0 °C | 191 mm | +34 mm |
| Aug | 33.8 °C | +1.0 °C | 159 mm | -15 mm |
| Sep | 32.4 °C | +0.2 °C | 367 mm | +97 mm |
| Oct | 32.7 °C | +0.9 °C | 138 mm | -46 mm |
| Nov | 30.3 °C | -1.4 °C | 106 mm | +59 mm |
| Dec | 31.9 °C | +0.5 °C | 10 mm | +2 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Bang Ban?
Bang Ban has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.2 °C and it receives 1,322 mm of precipitation per year.
What is the hottest day ever recorded in Bang Ban?
The hottest day measured in Bang Ban between 1940 and 2025 was 4 May 1980, reaching 41.8 °C.
What is the coldest day in Bang Ban?
The coldest day measured in Bang Ban between 1940 and 2025 was 12 January 1955, at 11.8 °C.
Does it snow in Bang Ban?
Almost never: Bang Ban sees virtually no snow, with about 0 frost days per year.
Has the climate of Bang Ban warmed?
Yes: Bang Ban warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bang Ban?
The wettest day measured in Bang Ban between 1940 and 2025 was 12 September 2006, with 122 mm of rain in 24 hours.
What was the windiest day in Bang Ban?
The windiest day measured in Bang Ban between 1940 and 2025 was 3 November 2009, with winds reaching 29.8 km/h.
What is the warmest month in Bang Ban?
The warmest month in Bang Ban is April (30.4 °C on average); the coldest is December (25.9 °C).
How much does it rain in Bang Ban?
Bang Ban receives on average 1,322 mm of precipitation per year, spread over about 180 rainy days.
Is it sunny in Bang Ban?
Bang Ban gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Bang Ban?
Yes: Bang Ban has on average 341 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bang Ban?
In Bang Ban, between 1940 and 2025, the highest apparent temperature reached 47.8 °C on 18 April 1953, and the lowest was 8.6 °C on 12 January 1955.
Compare Bang Ban with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bang Ban