Ubatuba weather in May

In May, Ubatuba sees average daytime highs of 22°C and overnight lows near 20°C, with 125 mm of rain across 11.9 wet days and about 10.9 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 46% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 42 min by month's end. Set against the rest of the year, May is Ubatuba's 4th-clearest and 7th-windiest month. For the whole year in context, see Ubatuba's year-round climate.

Daytime high
22°
7th warmest
Overnight low
20°
6th coldest
Rainfall
125 mm
11.9 wet days
Daylight
10 h 54 min
7:30 AM – 6:23 PM
Cloud cover
48%
4th clearest
Wind
12 km/h
7th windiest
Solar energy
3.62 kWh/m²
Travel score
6.6
out of 10

Ubatuba 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 22°C through the month.

A typical May day in Ubatuba reaches about 22°C in the afternoon and slips back to 20°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°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)
12321
22321
32321
42321
52321
62321
72321
82321
92321
102321
112321
122221
132221
142221
152220
162220
172220
182220
192220
202220
212220
222220
232220
242220
252220
262220
272220
282220
292220
302220
312220

Ubatuba weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°20316.113.35.7
Feb26° / 24°1471312.86.0
Mar25° / 23°18915.312.26.0
Apr24° / 22°13412.311.56.7
May22° / 20°12511.910.96.6
Jun22° / 20°1039.910.66.8
Jul21° / 19°1171010.76.8
Aug21° / 19°9310.311.26.7
Sep21° / 19°15414.211.96.0
Oct22° / 20°15815.312.65.7
Nov23° / 21°17215.613.15.7
Dec24° / 22°16414.913.46.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46634
56634
66634
76436
86436
96238
106238
116139
126040
136040
145941
155941
165941
175941
185941
195941
205941
215941
225941
235941
245941
255941
265941
275941
285941
295941
305941
315941

Chance of precipitation in May

Any precipitation

Ubatuba gets around 125 mm of rain over 11.9 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 39% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
539
640
740
840
941
1041
1141
1241
1341
1441
1541
1640
1740
1839
1939
2038
2138
2238
2337
2437
2537
2637
2737
2838
2938
3038
3138

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
107224922
217234920
318244919
419254917
519264916
619264815
7110274814
8110284813
9110294713
10111294712
11111304711
12111314710
13111314710
1421132479
1521132478
1621133477
1721133477
1821233476
1921234466
2031234465
2131234465
2231234464
2331335454
2441335453
2541335453
2641335453
2741435442
2851435442
2951435442
3051435442
3151435441

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 42 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 7:23 AM to 7:37 AM, and sunset from 6:32 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:236:32
211.17:246:31
311.17:246:30
411.17:256:30
511.17:256:29
611.07:266:28
711.07:266:28
811.07:266:27
911.07:276:26
1011.07:276:26
1111.07:286:25
1210.97:286:25
1310.97:296:24
1410.97:296:24
1510.97:306:23
1610.97:306:23
1710.97:316:22
1810.87:316:22
1910.87:326:21
2010.87:326:21
2110.87:336:21
2210.87:336:20
2310.87:346:20
2410.87:346:20
2510.77:356:19
2610.77:356:19
2710.77:366:19
2810.77:366:19
2910.77:376:18
3010.77:376:18
3110.77:376:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.62 kWh/m².

For context, solar energy here swings from a low near 3.31 kWh/m² to a high of 5.79 kWh/m² in December across the year — May's 3.62 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Moderate
44.0Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in May

Is May a good time to visit Ubatuba?

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

6.6
Sightseeing
5th-best month of the year
4.8
Beach & pool
6th-best month of the year

May is a reasonable time to visit Ubatuba for sightseeing.

What to pack for Ubatuba in May

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

In May, Ubatuba sees daytime highs around 22°C and nights near 20°C. Worth packing: light clothes and rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Ubatuba in May

The nearest coast averages about 24°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 21 km away) is warmest in February at about 27°C and coldest in August near 21°C.

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

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep22Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Ubatuba 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 Ubatuba peaks around January 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 24UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Ubatuba in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Ubatuba is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (March, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1517 µg/m³Mar 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar9Good
Apr10Good
May12Good
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep18Moderate
Oct12Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Ubatuba?

Ubatuba sits at 23.4°S, 45.1°W, 6 m above sea level, in Brazil. The nearest listed city is Caraguatatuba, 41 km away.

Topography around Ubatuba

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

Within 3 km, the terrain around Ubatuba has significant variations in elevation — a maximum elevation change of 564 m around an average of 52 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,204 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,891 m.

The land around Ubatuba is covered by trees (41%), water (30%) and artificial surfaces (25%) within 3 km, trees (58%) and water (40%) within 16 km, and water (40%), trees (37%) and grassland (20%) within 80 km.

3 km
564 m
16 km
1,204 m
80 km
1,891 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Caraguatatuba 41 km · Cunha 42 km · Paraty 44 km · Ilhabela 48 km · São Sebastião 50 km · Paraibuna 61 km · Taubaté 67 km · Aparecida 67 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 Ubatuba (-23.4339°, -45.0711°, elevation 6 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).