Betroka climate — normals and trends

Betroka (Madagascar) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 20.0 °C and it receives 897 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 January (22.6 °C on average) and the coldest is July (15.8 °C). Rainfall peaks in January.

Betroka averages 0 frost days, 32 hot days (≥ 30 °C) and 94 rainy days per year.

Betroka has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.0 °C (on 12 October 2010) and the coldest 3.1 °C (on 18 July 1976).

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

BetrokaAnosy

coords
-23.27°, 46.08°
period
19402025 · 86 yrs
CwaHumid subtropical, dry winterWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthJune

Mean daily temperature

20.0°C

Average daily high

25.7°C

Average daily low

15.5°C

Annual rainfall

897mm

Sunshine / day

11.0h

Mean relative humidity

69%

Average peak wind

17.1km/h

Seasonal range

6.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

32 d/yr

Rainy days (≥ 1 mm)

94 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.3 °C

Average feels-like low

15.0 °C

Average peak gust

36.7 km/h

Tropical nights (≥ 20 °C)

19 d/yr

Solar radiation

20.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.66 · 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

37.0 °C

12 October 2010

Coldest day

3.1 °C

18 July 1976

Wettest day

215 mm

16 January 2000

Windiest day

53.9 km/h

24 March 1941

Strongest gust

120.2 km/h

18 March 1941

Hottest feels-like

38.4 °C

15 December 2023

Coldest feels-like

0.3 °C

18 July 1976

Sunniest day

13.4 h

28 December 2025

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202535.6 °C13 January 20256.9 °C4 August 202520.8 °C911 mm420
202436.2 °C20 December 20248.2 °C8 July 202421.2 °C652 mm770
202335.4 °C28 November 20236.5 °C26 June 202320.9 °C830 mm670
202234.3 °C5 October 20227.0 °C18 June 202220.4 °C839 mm330
202134.9 °C9 November 20217.7 °C19 September 202120.9 °C548 mm880
202034.9 °C8 November 20207.1 °C27 July 202021.0 °C417 mm970
201935.6 °C4 December 20195.8 °C22 July 201921.0 °C799 mm600
201833.1 °C20 September 20187.5 °C17 July 201820.6 °C631 mm320
201734.0 °C24 October 20178.6 °C12 July 201720.8 °C864 mm450
201633.1 °C9 November 20168.6 °C22 May 201620.6 °C747 mm560
201535.0 °C7 October 20154.9 °C8 July 201520.6 °C1,076 mm350
201434.2 °C10 October 20145.2 °C10 July 201420.5 °C930 mm560
201335.8 °C17 November 20134.8 °C7 July 201320.3 °C833 mm580
201234.3 °C22 October 20126.9 °C4 August 201220.6 °C857 mm400
201135.7 °C31 October 20115.7 °C8 July 201120.5 °C945 mm490
201037.0 °C12 October 20107.5 °C12 August 201021.4 °C686 mm1240
200935.7 °C30 December 20095.8 °C1 July 200920.4 °C889 mm640
200834.4 °C3 October 20086.4 °C11 June 200820.3 °C775 mm610
200733.7 °C10 October 20075.9 °C3 July 200720.4 °C1,087 mm550
200635.0 °C4 November 20065.3 °C27 June 200620.9 °C581 mm870
200531.6 °C13 October 20056.7 °C2 July 200520.3 °C833 mm230
200433.1 °C20 November 20045.1 °C3 June 200420.4 °C917 mm200
200333.4 °C6 October 20036.4 °C12 June 200320.3 °C915 mm240
200232.9 °C21 January 20027.4 °C23 June 200220.3 °C879 mm160
200132.6 °C8 November 20016.9 °C21 July 200120.3 °C917 mm280
200031.3 °C3 January 20007.1 °C19 July 200020.0 °C1,383 mm70
199930.9 °C5 November 19995.2 °C28 June 199919.9 °C831 mm100
199832.4 °C22 November 19985.6 °C10 June 199820.4 °C1,045 mm330
199732.9 °C10 November 19976.8 °C17 October 199720.0 °C896 mm100
199634.0 °C22 November 19964.6 °C30 June 199620.2 °C942 mm400
199532.5 °C25 March 19958.0 °C2 July 199520.5 °C496 mm580
199433.5 °C20 November 19944.9 °C28 May 199419.5 °C1,047 mm230
199332.8 °C30 November 19934.4 °C15 August 199319.7 °C864 mm210
199232.5 °C17 December 19925.1 °C5 July 199220.0 °C646 mm270
199133.4 °C19 January 19914.3 °C17 June 199120.5 °C376 mm740
199033.4 °C24 October 19905.0 °C6 July 199020.1 °C722 mm200
198931.6 °C20 October 19897.4 °C15 June 198919.9 °C904 mm130
198831.5 °C2 March 19886.4 °C20 August 198820.1 °C666 mm70
198733.0 °C26 December 19874.2 °C21 June 198720.1 °C747 mm240
198630.7 °C29 January 19866.0 °C26 June 198619.5 °C966 mm80
198534.3 °C6 February 19857.5 °C3 June 198519.5 °C954 mm240
198431.4 °C15 October 19847.3 °C22 August 198419.6 °C929 mm20
198334.3 °C12 January 19836.8 °C31 July 198320.5 °C676 mm460
198232.9 °C27 December 19826.3 °C15 July 198219.5 °C894 mm90
198132.4 °C30 January 19814.7 °C10 June 198119.5 °C1,049 mm210
198030.7 °C29 November 19803.5 °C19 June 198019.7 °C864 mm30
197932.9 °C27 September 19795.3 °C27 July 197920.0 °C937 mm270
197833.9 °C3 January 19786.4 °C28 July 197820.2 °C977 mm270
197732.3 °C12 October 19777.0 °C4 July 197720.1 °C818 mm220
197632.8 °C24 November 19763.1 °C18 July 197619.9 °C883 mm190
197531.0 °C5 November 19755.5 °C29 July 197519.2 °C1,000 mm40
197430.0 °C18 February 19745.6 °C27 July 197419.6 °C869 mm20
197332.7 °C28 January 19736.2 °C10 July 197319.7 °C1,032 mm130
197232.6 °C12 December 19725.7 °C6 June 197219.4 °C1,012 mm100
197129.5 °C9 April 19716.8 °C3 June 197119.4 °C1,255 mm00
197030.6 °C9 October 19707.9 °C3 July 197019.5 °C985 mm10
196931.7 °C18 October 19695.3 °C7 September 196919.8 °C1,067 mm130
196832.2 °C8 November 19685.7 °C12 June 196819.5 °C798 mm260
196730.6 °C10 February 19677.1 °C7 July 196719.6 °C1,124 mm60
196633.1 °C2 November 19665.3 °C27 July 196619.5 °C947 mm470
196532.2 °C1 November 19655.9 °C11 June 196518.7 °C810 mm110
196434.0 °C17 November 19646.4 °C27 June 196419.2 °C815 mm220
196332.9 °C9 October 19637.2 °C29 July 196319.3 °C1,008 mm190
196232.2 °C10 January 19628.1 °C21 July 196219.6 °C908 mm180
196134.2 °C24 October 19614.7 °C8 August 196119.8 °C923 mm200
196034.4 °C29 October 19606.7 °C4 July 196019.4 °C976 mm310
195932.8 °C2 November 19598.5 °C21 August 195919.7 °C752 mm120
195833.6 °C3 December 19585.9 °C22 June 195819.7 °C956 mm450
195734.9 °C8 November 19576.6 °C10 July 195719.9 °C786 mm540
195632.0 °C19 February 19566.6 °C25 July 195619.6 °C862 mm140
195535.7 °C14 November 19556.0 °C9 August 195519.4 °C892 mm240
195432.6 °C26 October 19547.7 °C30 June 195419.4 °C1,386 mm150
195331.5 °C17 October 19536.4 °C3 July 195319.1 °C1,122 mm120
195232.2 °C21 November 19525.2 °C20 September 195219.3 °C1,568 mm160
195134.3 °C26 November 19517.1 °C17 July 195120.0 °C701 mm520
195033.0 °C1 November 19505.2 °C23 May 195019.2 °C864 mm260
194933.5 °C5 December 19497.9 °C5 June 194919.7 °C1,089 mm270
194833.1 °C7 November 19487.4 °C28 June 194819.4 °C1,067 mm240
194733.0 °C11 October 19476.8 °C15 May 194719.4 °C1,475 mm190
194634.7 °C30 October 19464.7 °C17 June 194619.7 °C897 mm280
194533.3 °C14 October 19456.1 °C28 June 194519.7 °C764 mm340
194434.2 °C21 October 19446.9 °C9 July 194420.0 °C641 mm540
194334.8 °C19 November 19434.4 °C3 September 194318.9 °C1,088 mm360
194231.7 °C23 September 19427.1 °C25 July 194219.3 °C925 mm150
194135.7 °C19 October 19416.1 °C20 June 194119.4 °C1,070 mm320
194033.9 °C18 November 19405.5 °C4 August 194019.8 °C832 mm390

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
26.6 °C
+0.9 °C
Hot days (≥ 30 °C)
42 d/yr
+10
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
911 mm
+14 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan30.2 °C+2.6 °C304 mm+85 mm
Feb27.6 °C+0.2 °C206 mm+44 mm
Mar27.2 °C+0.4 °C84 mm-28 mm
Apr28.2 °C+2.3 °C22 mm-16 mm
May25.2 °C+1.4 °C2 mm-12 mm
Jun23.6 °C+1.6 °C1 mm-4 mm
Jul21.5 °C-0.2 °C2 mm-3 mm
Aug23.7 °C+0.4 °C7 mm+1 mm
Sep27.5 °C+1.5 °C2 mm-7 mm
Oct28.1 °C0.0 °C33 mm-6 mm
Nov29.0 °C+0.6 °C74 mm-16 mm
Dec27.7 °C-0.1 °C174 mm-25 mm

The year's extremes

Hottest day
35.6 °C
13 Jan 2025
Coldest day
6.9 °C
4 Aug 2025
Wettest day
76.6 mm
23 Jan 2025
Windiest day
47.0 km/h
15 Mar 2025
Strongest gust
93.6 km/h
15 Mar 2025
Hottest feels-like
37.2 °C
6 Jan 2025
Coldest feels-like
4.5 °C
4 Aug 2025
Sunniest day
13.4 h
28 Dec 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 Betroka?

Betroka has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 20.0 °C and it receives 897 mm of precipitation per year.

What is the hottest day ever recorded in Betroka?

The hottest day measured in Betroka between 1940 and 2025 was 12 October 2010, reaching 37.0 °C.

What is the coldest day in Betroka?

The coldest day measured in Betroka between 1940 and 2025 was 18 July 1976, at 3.1 °C.

Does it snow in Betroka?

Almost never: Betroka sees virtually no snow, with about 0 frost days per year.

Has the climate of Betroka warmed?

Yes: Betroka warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Betroka?

The wettest day measured in Betroka between 1940 and 2025 was 16 January 2000, with 215 mm of rain in 24 hours.

What was the windiest day in Betroka?

The windiest day measured in Betroka between 1940 and 2025 was 24 March 1941, with winds reaching 53.9 km/h.

What is the warmest month in Betroka?

The warmest month in Betroka is January (22.6 °C on average); the coldest is July (15.8 °C).

How much does it rain in Betroka?

Betroka receives on average 897 mm of precipitation per year, spread over about 94 rainy days.

Is it sunny in Betroka?

Betroka gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Are there tropical nights in Betroka?

Yes: Betroka has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Betroka?

In Betroka, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 15 December 2023, and the lowest was 0.3 °C on 18 July 1976.

Compare Betroka with another city

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