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
19402025 · 86 yrs
AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

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

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202538.6 °C26 April 202516.9 °C29 November 202528.5 °C1,514 mm3410
202440.1 °C27 April 202419.3 °C21 December 202429.6 °C1,183 mm3580
202340.4 °C7 May 202317.7 °C31 January 202329.5 °C990 mm3520
202238.0 °C16 April 202218.6 °C19 December 202228.6 °C1,462 mm3440
202140.1 °C19 May 202116.1 °C20 January 202128.6 °C1,537 mm3410
202039.5 °C22 April 202019.0 °C21 December 202029.3 °C1,147 mm3410
201940.1 °C3 May 201917.4 °C7 December 201929.4 °C1,135 mm3470
201838.8 °C23 April 201818.2 °C13 January 201828.7 °C1,360 mm3460
201739.3 °C21 April 201715.5 °C20 December 201728.8 °C1,562 mm3410
201640.2 °C11 May 201614.3 °C26 January 201629.3 °C1,056 mm3540
201539.7 °C1 June 201517.7 °C16 January 201529.2 °C1,070 mm3510
201438.6 °C22 April 201413.7 °C24 January 201428.8 °C1,099 mm3460
201340.6 °C2 May 201316.1 °C28 December 201328.6 °C1,323 mm3340
201239.5 °C30 April 201220.5 °C9 January 201229.0 °C1,241 mm3610
201137.4 °C18 April 201117.2 °C17 March 201128.0 °C1,552 mm3320
201040.6 °C10 May 201019.5 °C18 December 201029.1 °C1,400 mm3430
200940.5 °C16 April 200915.4 °C12 January 200928.5 °C1,289 mm3450
200838.2 °C15 April 200817.5 °C10 December 200828.3 °C1,323 mm3430
200739.9 °C1 April 200716.1 °C4 February 200728.8 °C1,299 mm3470
200639.0 °C3 May 200616.3 °C24 December 200629.0 °C1,286 mm3480
200540.4 °C6 May 200515.4 °C3 January 200529.0 °C1,230 mm3400
200440.8 °C15 April 200417.3 °C15 February 200429.0 °C993 mm3570
200340.6 °C6 May 200316.6 °C14 January 200328.9 °C1,080 mm3530
200239.1 °C9 April 200218.7 °C1 January 200229.0 °C1,318 mm3520
200140.8 °C21 April 200117.8 °C31 December 200128.8 °C1,222 mm3490
200040.1 °C4 April 200015.5 °C4 February 200028.5 °C1,344 mm3500
199939.0 °C18 March 199912.6 °C25 December 199928.2 °C1,505 mm3360
199840.5 °C24 April 199818.7 °C17 December 199829.5 °C1,102 mm3510
199741.1 °C20 June 199715.9 °C13 January 199729.1 °C1,012 mm3580
199639.6 °C31 March 199614.4 °C2 January 199628.2 °C1,521 mm3450
199540.9 °C15 April 199514.2 °C8 January 199528.5 °C1,617 mm3440
199439.3 °C11 April 199417.4 °C25 January 199428.5 °C1,320 mm3520
199340.6 °C28 April 199315.7 °C31 January 199328.6 °C1,009 mm3460
199240.7 °C21 April 199216.4 °C18 January 199228.4 °C1,054 mm3370
199139.0 °C19 May 199118.3 °C6 February 199128.7 °C1,063 mm3540
199040.3 °C11 April 199016.6 °C6 December 199028.8 °C1,144 mm3490
198939.8 °C19 April 198917.0 °C4 December 198928.5 °C1,085 mm3520
198838.1 °C23 April 198816.9 °C20 January 198828.3 °C1,444 mm3370
198739.6 °C11 April 198715.8 °C9 December 198728.5 °C1,210 mm3380
198638.9 °C21 April 198615.9 °C6 January 198627.9 °C1,298 mm3340
198540.0 °C13 April 198515.8 °C24 December 198527.9 °C1,425 mm3370
198439.5 °C5 May 198413.7 °C10 January 198428.0 °C872 mm3450
198340.7 °C22 May 198314.9 °C25 January 198328.3 °C1,311 mm3160
198238.6 °C2 May 198213.3 °C29 December 198227.9 °C1,154 mm3280
198138.7 °C24 March 198114.6 °C19 January 198127.9 °C1,304 mm3270
198041.8 °C4 May 198016.3 °C25 December 198028.6 °C1,142 mm3480
197940.5 °C20 April 197917.1 °C27 December 197928.8 °C1,049 mm3570
197839.9 °C29 April 197816.4 °C16 December 197828.2 °C1,438 mm3400
197738.9 °C29 April 197717.6 °C23 February 197728.3 °C1,005 mm3510
197639.7 °C17 April 197612.6 °C16 January 197627.6 °C1,643 mm3240
197539.1 °C30 April 197513.2 °C30 December 197527.4 °C1,667 mm3180
197437.5 °C8 May 197413.9 °C5 January 197427.5 °C1,544 mm3270
197340.4 °C23 April 197313.6 °C27 December 197328.2 °C1,173 mm3350
197241.1 °C8 May 197214.4 °C16 January 197227.9 °C1,723 mm3320
197138.1 °C8 April 197115.1 °C5 January 197127.3 °C1,368 mm3110
197039.4 °C12 May 197017.3 °C2 January 197027.9 °C1,305 mm3340
196939.5 °C3 April 196915.8 °C23 December 196928.2 °C1,340 mm3250
196839.3 °C28 May 196813.9 °C6 January 196828.0 °C1,120 mm3470
196739.9 °C2 May 196713.9 °C17 January 196727.6 °C1,186 mm3300
196638.8 °C27 April 196617.2 °C1 January 196627.4 °C1,643 mm2940
196539.7 °C1 May 196514.2 °C19 January 196527.6 °C1,515 mm3310
196438.9 °C6 April 196415.0 °C19 December 196427.5 °C1,420 mm3100
196339.8 °C16 May 196312.7 °C16 January 196327.5 °C1,475 mm3150
196238.7 °C6 April 196214.8 °C28 January 196227.7 °C1,290 mm3240
196138.6 °C8 April 196113.6 °C19 January 196127.8 °C1,113 mm3320
196041.4 °C25 April 196012.0 °C4 January 196028.3 °C1,153 mm3360
195938.4 °C15 June 195916.9 °C19 January 195928.1 °C1,166 mm3400
195839.0 °C26 March 195816.4 °C25 November 195827.8 °C1,126 mm3060
195740.4 °C15 May 195714.8 °C6 February 195727.8 °C1,621 mm3320
195637.6 °C22 March 195612.7 °C17 January 195627.2 °C1,295 mm3120
195539.3 °C18 April 195511.8 °C12 January 195527.1 °C1,596 mm3170
195439.1 °C17 April 195414.1 °C17 December 195427.8 °C1,087 mm3360
195336.2 °C17 April 195315.2 °C12 December 195326.4 °C2,781 mm2760
195238.0 °C30 April 195214.7 °C12 December 195227.3 °C1,782 mm3160
195140.2 °C10 April 195115.3 °C2 January 195127.8 °C1,159 mm3200
195039.4 °C23 April 195015.7 °C3 January 195027.4 °C1,342 mm3040
194937.8 °C14 May 194914.5 °C17 January 194927.6 °C960 mm3270
194837.6 °C13 March 194814.7 °C2 January 194827.3 °C1,364 mm3130
194738.4 °C7 March 194715.2 °C30 December 194727.8 °C1,191 mm3400
194637.9 °C12 March 194615.4 °C8 January 194627.2 °C1,385 mm3270
194537.3 °C3 March 194515.6 °C31 December 194527.2 °C1,514 mm3130
194439.6 °C4 May 194414.6 °C21 December 194427.4 °C1,491 mm2980
194337.8 °C7 April 194315.8 °C13 January 194326.8 °C1,502 mm2920
194237.1 °C25 April 194215.1 °C17 December 194226.8 °C1,352 mm2780
194138.6 °C1 March 194118.9 °C31 December 194127.3 °C1,521 mm2710
194039.0 °C11 March 194013.2 °C5 January 194026.9 °C1,652 mm2780

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

Average daily high
33.2 °C
0.0 °C
Hot days (≥ 30 °C)
341 d/yr
+8
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
1514 mm
+192 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan31.6 °C-0.6 °C0 mm-15 mm
Feb33.9 °C+0.3 °C24 mm-3 mm
Mar35.5 °C+0.3 °C53 mm+6 mm
Apr36.0 °C0.0 °C72 mm-8 mm
May33.7 °C-0.9 °C257 mm+98 mm
Jun33.7 °C+0.2 °C137 mm-17 mm
Jul32.9 °C0.0 °C191 mm+34 mm
Aug33.8 °C+1.0 °C159 mm-15 mm
Sep32.4 °C+0.2 °C367 mm+97 mm
Oct32.7 °C+0.9 °C138 mm-46 mm
Nov30.3 °C-1.4 °C106 mm+59 mm
Dec31.9 °C+0.5 °C10 mm+2 mm

The year's extremes

Hottest day
38.6 °C
26 Apr 2025
Coldest day
16.9 °C
29 Nov 2025
Wettest day
65.2 mm
7 Sep 2025
Windiest day
22.6 km/h
22 Jul 2025
Strongest gust
67.3 km/h
23 Jul 2025
Hottest feels-like
44.6 °C
25 Apr 2025
Coldest feels-like
15.2 °C
28 Nov 2025
Sunniest day
12.7 h
17 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

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.

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