Viana climate — normals and trends

Viana (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.2 °C and it receives 1,391 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 February (25.8 °C on average) and the coldest is July (20.5 °C). Rainfall peaks in November.

Viana averages 0 frost days, 54 hot days (≥ 30 °C) and 154 rainy days per year.

Viana has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.8 °C (on 11 February 1999) and the coldest 12.2 °C (on 16 June 2016).

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

VianaEspírito Santo

coords
-20.39°, -40.50°
period
19402025 · 86 yrs
AwTropical savannaWarmest monthFebruaryColdest monthJulyWettest monthNovemberDriest monthJuly

Mean daily temperature

23.2°C

Average daily high

26.6°C

Average daily low

20.6°C

Annual rainfall

1,391mm

Sunshine / day

10.1h

Mean relative humidity

82%

Average peak wind

15.6km/h

Seasonal range

5.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

54 d/yr

Rainy days (≥ 1 mm)

154 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.6 °C

Average feels-like low

22.7 °C

Average peak gust

34.3 km/h

Tropical nights (≥ 20 °C)

218 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.57 · 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

35.8 °C

11 February 1999

Coldest day

12.2 °C

16 June 2016

Wettest day

196 mm

25 March 1951

Windiest day

35.3 km/h

5 August 2014

Strongest gust

76.7 km/h

29 December 1990

Hottest feels-like

42.6 °C

5 January 1972

Coldest feels-like

10.2 °C

19 May 2022

Sunniest day

13.0 h

30 November 1940

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202533.6 °C2 February 202514.4 °C6 July 202523.3 °C1,194 mm780
202434.6 °C28 February 202415.2 °C14 August 202424.4 °C1,582 mm1110
202334.7 °C5 February 202314.6 °C5 July 202323.9 °C990 mm1140
202234.3 °C13 December 202213.1 °C19 May 202223.4 °C1,406 mm780
202132.8 °C5 March 202113.8 °C2 August 202123.0 °C1,422 mm650
202033.9 °C12 January 202014.4 °C23 June 202023.4 °C1,382 mm620
201934.7 °C5 November 201913.6 °C9 July 201924.1 °C1,051 mm1100
201833.6 °C29 January 201814.9 °C7 July 201823.8 °C1,382 mm800
201735.0 °C6 March 201714.0 °C7 August 201723.5 °C778 mm900
201633.9 °C1 January 201612.2 °C16 June 201624.2 °C935 mm1210
201535.4 °C30 January 201514.8 °C5 August 201524.4 °C824 mm1260
201433.9 °C29 December 201414.0 °C8 August 201423.7 °C815 mm710
201333.8 °C27 February 201314.2 °C10 October 201323.4 °C1,624 mm700
201234.2 °C31 October 201213.7 °C1 September 201223.5 °C864 mm800
201133.1 °C17 January 201112.4 °C4 September 201123.1 °C1,441 mm510
201035.2 °C24 February 201014.0 °C17 August 201023.8 °C1,117 mm1030
200935.4 °C3 March 200915.3 °C22 June 200924.2 °C1,583 mm1120
200833.7 °C3 March 200815.5 °C19 July 200823.4 °C1,826 mm650
200734.3 °C4 April 200715.0 °C30 July 200723.8 °C1,132 mm830
200635.3 °C25 February 200615.2 °C18 July 200623.6 °C1,461 mm770
200534.3 °C27 February 200516.0 °C13 July 200523.8 °C1,660 mm740
200431.8 °C5 February 200414.9 °C11 August 200423.4 °C1,554 mm510
200334.0 °C4 March 200315.0 °C18 October 200323.8 °C1,162 mm930
200233.4 °C2 December 200216.1 °C20 July 200224.1 °C1,154 mm870
200134.6 °C3 February 200115.6 °C17 August 200123.7 °C1,068 mm740
200033.3 °C18 January 200014.4 °C6 August 200023.3 °C1,184 mm540
199935.8 °C11 February 199914.4 °C18 August 199923.1 °C1,365 mm740
199835.3 °C10 February 199815.1 °C14 July 199823.9 °C1,150 mm1050
199734.1 °C10 September 199713.9 °C12 August 199723.6 °C1,095 mm660
199634.9 °C10 February 199614.6 °C6 August 199623.2 °C1,612 mm830
199533.5 °C17 January 199514.3 °C6 June 199523.8 °C1,407 mm740
199434.2 °C14 February 199415.0 °C8 August 199423.6 °C1,159 mm740
199334.4 °C9 March 199315.0 °C23 June 199323.8 °C1,226 mm800
199232.2 °C18 May 199213.6 °C28 July 199223.2 °C1,423 mm290
199133.3 °C27 December 199114.9 °C8 September 199123.2 °C1,527 mm430
199033.8 °C23 January 199015.4 °C26 August 199023.7 °C1,057 mm890
198933.3 °C26 February 198914.5 °C15 July 198923.2 °C1,400 mm540
198832.9 °C1 April 198814.2 °C14 July 198823.2 °C1,312 mm540
198733.2 °C17 January 198715.3 °C23 August 198723.7 °C1,336 mm520
198633.6 °C15 April 198615.0 °C13 July 198623.5 °C898 mm650
198534.2 °C4 February 198514.1 °C15 June 198523.1 °C1,428 mm410
198434.0 °C20 January 198414.9 °C1 August 198423.7 °C1,313 mm540
198333.3 °C11 March 198313.6 °C7 August 198323.7 °C1,717 mm450
198232.7 °C30 October 198215.0 °C2 May 198223.1 °C1,272 mm310
198133.3 °C24 December 198114.8 °C30 July 198122.9 °C1,678 mm240
198032.8 °C30 March 198015.4 °C30 August 198023.3 °C1,486 mm360
197933.2 °C16 December 197913.4 °C1 June 197922.8 °C1,910 mm210
197833.0 °C28 March 197815.3 °C16 June 197822.9 °C1,627 mm260
197732.9 °C28 March 197715.3 °C21 May 197723.4 °C1,604 mm410
197632.7 °C11 January 197615.9 °C16 August 197623.2 °C1,365 mm400
197532.5 °C14 February 197515.1 °C19 July 197522.9 °C1,529 mm400
197433.2 °C23 February 197414.0 °C12 July 197423.2 °C1,011 mm400
197333.7 °C8 January 197315.1 °C9 August 197323.6 °C1,587 mm550
197234.4 °C5 January 197214.8 °C30 July 197223.5 °C1,093 mm630
197133.5 °C25 February 197114.9 °C16 September 197123.1 °C1,795 mm510
197033.2 °C22 March 197014.5 °C16 August 197022.8 °C1,306 mm340
196933.4 °C10 January 196916.2 °C19 July 196923.2 °C1,223 mm550
196833.1 °C25 December 196814.7 °C15 August 196822.0 °C1,453 mm290
196734.4 °C16 January 196714.6 °C22 July 196723.1 °C1,685 mm360
196633.0 °C5 December 196615.6 °C24 September 196622.8 °C1,189 mm350
196532.0 °C3 March 196515.4 °C28 July 196522.8 °C1,826 mm210
196432.1 °C19 February 196414.7 °C31 July 196422.1 °C2,186 mm130
196333.6 °C30 September 196314.2 °C9 August 196323.0 °C942 mm520
196231.5 °C18 February 196214.7 °C18 June 196222.3 °C1,900 mm140
196132.5 °C11 September 196115.3 °C7 August 196123.0 °C1,524 mm340
196032.1 °C25 September 196014.7 °C15 July 196022.3 °C1,390 mm110
195933.1 °C10 February 195915.4 °C13 June 195923.0 °C1,449 mm380
195832.6 °C20 December 195815.5 °C24 June 195822.7 °C1,058 mm400
195733.4 °C11 February 195715.1 °C22 July 195722.7 °C1,472 mm300
195633.2 °C27 January 195614.1 °C11 August 195621.9 °C1,474 mm280
195533.3 °C17 December 195515.0 °C15 August 195522.3 °C1,153 mm270
195432.1 °C9 March 195415.5 °C30 July 195422.9 °C1,396 mm200
195333.9 °C31 January 195315.5 °C29 July 195322.9 °C1,350 mm260
195232.9 °C26 February 195216.4 °C10 August 195222.7 °C2,136 mm170
195133.4 °C16 November 195114.8 °C3 September 195122.3 °C1,281 mm360
195032.3 °C11 January 195015.2 °C14 July 195022.5 °C1,634 mm290
194931.6 °C13 January 194914.6 °C3 July 194922.3 °C1,820 mm220
194833.2 °C27 January 194815.3 °C19 August 194822.6 °C1,436 mm430
194733.4 °C10 January 194714.7 °C4 August 194722.5 °C1,338 mm590
194632.5 °C3 November 194615.4 °C29 July 194623.1 °C1,264 mm450
194533.5 °C29 November 194516.3 °C26 June 194523.1 °C1,535 mm400
194432.1 °C16 January 194414.2 °C22 August 194422.5 °C1,422 mm200
194330.8 °C20 January 194313.5 °C5 September 194321.6 °C2,177 mm20
194232.0 °C17 January 194214.2 °C26 June 194221.8 °C1,528 mm130
194131.9 °C13 January 194114.6 °C23 July 194122.9 °C1,563 mm240
194032.8 °C30 December 194016.1 °C10 June 194023.1 °C1,592 mm270

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
27.0 °C
+0.4 °C
Hot days (≥ 30 °C)
78 d/yr
+24
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
1194 mm
-197 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan29.8 °C+0.7 °C248 mm+88 mm
Feb31.7 °C+2.2 °C12 mm-101 mm
Mar29.7 °C+1.0 °C129 mm-31 mm
Apr27.6 °C+0.5 °C228 mm+108 mm
May25.6 °C+0.1 °C72 mm+2 mm
Jun25.5 °C+0.8 °C25 mm-20 mm
Jul23.8 °C-0.3 °C32 mm-12 mm
Aug24.7 °C+0.2 °C28 mm-18 mm
Sep24.6 °C-0.6 °C114 mm+43 mm
Oct25.0 °C-1.0 °C136 mm-4 mm
Nov26.6 °C0.0 °C93 mm-124 mm
Dec29.2 °C+1.3 °C78 mm-128 mm

The year's extremes

Hottest day
33.6 °C
2 Feb 2025
Coldest day
14.4 °C
6 Jul 2025
Wettest day
84.7 mm
6 Apr 2025
Windiest day
29.1 km/h
19 Oct 2025
Strongest gust
60.5 km/h
6 Apr 2025
Hottest feels-like
41.4 °C
21 Jan 2025
Coldest feels-like
13.5 °C
29 Sep 2025
Sunniest day
13.0 h
18 Nov 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 Viana?

Viana has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.2 °C and it receives 1,391 mm of precipitation per year.

What is the hottest day ever recorded in Viana?

The hottest day measured in Viana between 1940 and 2025 was 11 February 1999, reaching 35.8 °C.

What is the coldest day in Viana?

The coldest day measured in Viana between 1940 and 2025 was 16 June 2016, at 12.2 °C.

Does it snow in Viana?

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

Has the climate of Viana warmed?

Yes: Viana warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Viana?

The wettest day measured in Viana between 1940 and 2025 was 25 March 1951, with 196 mm of rain in 24 hours.

What was the windiest day in Viana?

The windiest day measured in Viana between 1940 and 2025 was 5 August 2014, with winds reaching 35.3 km/h.

What is the warmest month in Viana?

The warmest month in Viana is February (25.8 °C on average); the coldest is July (20.5 °C).

How much does it rain in Viana?

Viana receives on average 1,391 mm of precipitation per year, spread over about 154 rainy days.

Is it sunny in Viana?

Viana gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Are there tropical nights in Viana?

Yes: Viana has on average 218 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Viana?

In Viana, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 5 January 1972, and the lowest was 10.2 °C on 19 May 2022.

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