Itabaianinha weather in May

In May, Itabaianinha sees average daytime highs of 29°C and overnight lows near 22°C, with 92 mm of rain across 20.3 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 24 min by month's end. Set against the rest of the year, May is Itabaianinha's 12th-clearest and 12th-windiest month. For the whole year in context, see Itabaianinha's year-round climate.

Daytime high
29°
8th warmest
Overnight low
22°
6th coldest
Rainfall
92 mm
20.3 wet days
Daylight
11 h 30 min
5:43 AM – 5:12 PM
Cloud cover
58%
12th clearest
Wind
9 km/h
12th windiest
Solar energy
4.17 kWh/m²
Travel score
4.5
out of 10

Itabaianinha is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Itabaianinha reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302821
312821

How May really feels in Itabaianinha

Once humidity and wind are folded in, May averages 7 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
7
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Itabaianinha weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°5112.812.64.0
Feb31° / 23°5013.612.43.8
Mar31° / 23°5415.412.13.8
Apr30° / 23°731711.84.0
May29° / 22°9220.311.54.5
Jun27° / 21°8921.611.44.8
Jul26° / 20°7420.911.45.1
Aug27° / 20°6419.511.65.3
Sep28° / 21°4614.911.95.5
Oct29° / 22°3610.112.35.3
Nov31° / 23°399.412.54.8
Dec31° / 23°359.112.64.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 33% of May, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55842
65842
75842
85842
95941
105941
115941
125842
135743
145743
155743
165644
175644
185743
195644
205644
215644
225644
235743
245743
255743
265842
275842
285842
295941
306040
316040

Chance of precipitation in May

Any precipitation

Itabaianinha gets around 92 mm of rain over 20.3 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 65% and peaks near 67% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
564
664
764
864
964
1064
1164
1264
1364
1464
1565
1665
1765
1865
1966
2066
2166
2266
2366
2466
2567
2667
2767
2867
2967
3067
3167

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
110891
210891
311881
411881
512871
612871
713861
813861
914851
1014851
1114860
1215850
1315850
1415850
1516840
1616840
1717830
1817830
1918820
2018820
2119810
2220800
2320800
2421790
2521790
2622780
2723770
2824760
2925750
3026740
3128720

Wind in May

Winds average 9 km/h in May, the calmest month.

Across May, daily wind ranges from about 9 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
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 36 min at the start of May to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 5:40 AM to 5:47 AM, and sunset from 5:17 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:405:17
211.65:405:16
311.65:405:16
411.65:415:15
511.65:415:15
611.65:415:15
711.65:415:14
811.55:415:14
911.55:415:14
1011.55:425:13
1111.55:425:13
1211.55:425:13
1311.55:425:13
1411.55:425:12
1511.55:435:12
1611.55:435:12
1711.55:435:12
1811.55:435:12
1911.55:445:11
2011.55:445:11
2111.45:445:11
2211.45:445:11
2311.45:455:11
2411.45:455:11
2511.45:455:11
2611.45:455:11
2711.45:465:10
2811.45:465:10
2911.45:465:10
3011.45:465:10
3111.45:475:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.17 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.29 kWh/m² in December across the year — May's 4.17 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.4Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Bright
284.0Moderate
294.0Moderate
304.0Moderate
314.0Moderate
Planning a trip in May

Is May a good time to visit Itabaianinha?

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

4.5
Sightseeing
7th-best month of the year
5.4
Beach & pool
9th-best month of the year

May is a reasonable time to visit Itabaianinha for sightseeing.

What to pack for Itabaianinha in May

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

In May, Itabaianinha sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 20 days see rain.

light clothesrain gear

Sea temperature near Itabaianinha in May

The nearest coast averages about 28°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 47 km away) is warmest in April at about 28°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov26Warm
Dec27Warm

UV index in Itabaianinha in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itabaianinha peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jul 11UV 9
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Itabaianinha?

Itabaianinha sits at 11.3°S, 37.8°W, 223 m above sea level, in Brazil. The nearest listed city is Umbaúba, 19 km away.

Topography around Itabaianinha

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

Within 3 km, the terrain around Itabaianinha has only modest variations in elevation — a maximum elevation change of 121 m around an average of 174 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 329 m; within 80 km, large variations in elevation — a maximum elevation change of 653 m.

The land around Itabaianinha is covered by grassland (67%) within 3 km, grassland (80%) within 16 km, and grassland (53%) within 80 km.

3 km
121 m
16 km
329 m
80 km
653 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Umbaúba 19 km · Cristinápolis 23 km · Boquim 23 km · Riachão do Dantas 24 km · Tobias Barreto 25 km · Rio Real 28 km · Estância 38 km · Indiaroba 41 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 Itabaianinha (-11.2739°, -37.79°, elevation 223 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).