Viana weather in May

In May, Viana sees average daytime highs of 26°C and overnight lows near 20°C, with 63 mm of rain across 10.4 wet days and about 11 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 39% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 18 min at the start of May to 10 h 54 min by month's end. Set against the rest of the year, May is Viana's 4th-clearest and 10th-windiest month. For the whole year in context, see Viana's year-round climate.

Daytime high
26°
8th warmest
Overnight low
20°
5th coldest
Rainfall
63 mm
10.4 wet days
Daylight
11 hours
7:07 AM – 6:09 PM
Cloud cover
50%
4th clearest
Wind
9 km/h
10th windiest
Solar energy
3.99 kWh/m²
Travel score
6.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical May day in Viana reaches about 26°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32720
42720
52720
62720
72720
82720
92720
102720
112720
122620
132620
142620
152620
162620
172620
182620
192620
202620
212619
222619
232619
242619
252619
262619
272619
282619
292619
302619
312619

How May really feels in Viana

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Viana weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°13812.313.14.8
Feb30° / 23°941012.74.8
Mar30° / 23°15914.612.14.6
Apr28° / 22°10414.511.55.5
May26° / 20°6310.4116.7
Jun26° / 19°387.710.87.3
Jul25° / 18°428.210.97.5
Aug25° / 18°437.811.37.4
Sep26° / 19°639.811.96.8
Oct27° / 21°11311.912.56.2
Nov27° / 22°20816.1135.3
Dec29° / 23°20616.313.24.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36535
46535
56535
66436
76337
86337
96238
106238
116139
126040
135941
145842
155842
165743
175842
185842
195842
205842
215941
225941
236040
246139
256139
266238
276337
286436
296436
306535
316535

Chance of precipitation in May

Any precipitation

Viana gets around 63 mm of rain over 10.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
338
437
536
635
735
834
934
1034
1134
1235
1335
1435
1536
1636
1736
1836
1936
2036
2136
2235
2335
2435
2534
2633
2732
2832
2931
3030
3129

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11134938
21145035
31155232
41165330
51175527
61195525
71205524
81215622
91225621
101235620
111245718
122245717
132255617
142265616
152265715
162275615
172275714
182275813
193285613
203285712
213285811
223295711
233295810
24329599
25330589
26430588
27430597
28430597
29430606
30430606
31530605

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 18 min at the start of May to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 7:01 AM to 7:13 AM, and sunset from 6:17 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:016:17
211.27:026:16
311.27:026:16
411.27:026:15
511.27:036:15
611.27:036:14
711.27:046:14
811.27:046:13
911.17:046:12
1011.17:056:12
1111.17:056:11
1211.17:066:11
1311.17:066:11
1411.17:066:10
1511.07:076:10
1611.07:076:09
1711.07:086:09
1811.07:086:09
1911.07:086:08
2011.07:096:08
2111.07:096:08
2211.07:106:07
2310.97:106:07
2410.97:116:07
2510.97:116:06
2610.97:116:06
2710.97:126:06
2810.97:126:06
2910.97:136:06
3010.97:136:05
3110.97:136:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.99 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.48 kWh/m² in February across the year — May's 3.99 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.2Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in May

Hazard calendar for Viana

In seasonPeak

None of Viana's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Viana's rainy season runs October–January, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Viana?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.7
Sightseeing
5th-best month of the year
6.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Viana for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Viana in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Viana sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Viana in May

The nearest coast averages about 25°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 km away) is warmest in March at about 26°C and coldest in August near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb26Warm
Mar26Warm
Apr26Warm
May25Warm
Jun24Refreshing
Jul23Refreshing
Aug23Refreshing
Sep23Refreshing
Oct23Refreshing
Nov24Warm
Dec25Warm

UV index in Viana in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Viana peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 10UV 14Jun 20UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Viana?

Viana sits at 20.4°S, 40.5°W, 35 m above sea level, in Brazil. The nearest listed city is Cariacica, 16 km away.

Topography around Viana

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Viana.

Within 3 km, the terrain around Viana has significant variations in elevation — a maximum elevation change of 380 m around an average of 79 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 885 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,980 m.

The land around Viana is covered by trees (48%) and grassland (48%) within 3 km, trees (61%) and grassland (31%) within 16 km, and trees (44%), water (30%) and grassland (23%) within 80 km.

3 km
380 m
16 km
885 m
80 km
1,980 m
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Cariacica 16 km · Domingos Martins 17 km · Vitória 18 km · Marechal Floriano 20 km · Vila Velha 22 km · Guarapari 31 km · Serra 35 km · Santa Maria de Jetibá 48 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Viana (-20.3903°, -40.4961°, elevation 35 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).