Bertioga weather in May

In May, Bertioga sees average daytime highs of 23°C and overnight lows near 16°C, with 111 mm of rain across 13.2 wet days and about 10.9 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 36 min by month's end. Set against the rest of the year, May is Bertioga's 4th-clearest and 8th-windiest month. For the whole year in context, see Bertioga's year-round climate.

Daytime high
23°
9th warmest
Overnight low
16°
5th coldest
Rainfall
111 mm
13.2 wet days
Daylight
10 h 54 min
7:35 AM – 6:26 PM
Cloud cover
61%
4th clearest
Wind
7 km/h
8th windiest
Solar energy
3.5 kWh/m²
Travel score
6.3
out of 10

Bertioga 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

Highs ease over the month, from about 24°C in the first days to 22°C by the end.

A typical May day in Bertioga reaches about 23°C in the afternoon and slips back to 16°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62416
72416
82416
92416
102316
112316
122316
132316
142316
152316
162316
172316
182316
192316
202315
212315
222315
232315
242315
252315
262315
272315
282315
292315
302215
312215

Bertioga weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°40527.313.33.8
Feb28° / 21°3402412.83.9
Mar27° / 20°32925.812.24.2
Apr26° / 18°14616.811.55.6
May23° / 16°11113.210.96.3
Jun23° / 15°829.410.66.9
Jul22° / 14°949.210.76.9
Aug23° / 14°819.811.26.9
Sep23° / 16°14614.811.96.0
Oct24° / 17°1801812.65.4
Nov25° / 18°24321.313.24.8
Dec27° / 20°30224.813.44.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34951
44852
54852
64654
74555
84555
94456
104456
114456
124258
134159
144258
154159
164159
174060
184159
194159
204159
214159
224159
234258
244159
254357
264258
274357
284357
294357
304357
314456

Chance of precipitation in May

Any precipitation

Bertioga gets around 111 mm of rain over 13.2 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 43% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
245
345
444
544
644
744
843
943
1044
1144
1244
1344
1444
1544
1644
1744
1843
1943
2043
2143
2242
2342
2442
2541
2641
2741
2840
2940
3039
3139

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
141652271
251851251
351951241
452052221
552252201
652352191
762451181
862651170
962752150
1062852140
1162952130
1263052120
1363053110
1473152100
157325290
167335190
178335180
188345080
198355070
209354970
2110364860
2210374760
2311374660
2411384560
2512394360
2612404250
2713414150
2813414050
2914423950
3014423850
3115423750

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:28 AM to 7:42 AM, and sunset from 6:35 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:286:35
211.17:286:35
311.17:296:34
411.17:296:33
511.07:306:33
611.07:306:32
711.07:316:31
811.07:316:31
911.07:326:30
1011.07:326:30
1110.97:336:29
1210.97:336:28
1310.97:346:28
1410.97:346:27
1510.97:356:27
1610.97:356:26
1710.87:366:26
1810.87:366:25
1910.87:376:25
2010.87:376:25
2110.87:386:24
2210.87:386:24
2310.77:396:23
2410.77:396:23
2510.77:406:23
2610.77:406:23
2710.77:416:22
2810.77:416:22
2910.77:426:22
3010.77:426:22
3110.67:426:21

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.5 kWh/m².

For context, solar energy here swings from a low near 3.21 kWh/m² to a high of 5.85 kWh/m² in December across the year — May's 3.5 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.7Moderate
93.7Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in May

Hazard calendar for Bertioga

In seasonPeak

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

Bertioga's rainy season runs November–March, 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 Bertioga?

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

6.3
Sightseeing
4th-best month of the year
5.0
Beach & pool
4th-best month of the year

May is a reasonable time to visit Bertioga for sightseeing.

What to pack for Bertioga in May

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

In May, Bertioga sees daytime highs around 23°C and nights near 16°C. Worth packing: light clothes and rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Bertioga 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 offshore 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°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Refreshing
Jun22Refreshing
Jul21Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Bertioga in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bertioga peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 highExtremeFeb 10UV 14Jul 12UV 5
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar10Very high
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug7High
Sep7Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in Bertioga 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 Bertioga is worst in July — around 52 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (February, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1451 µg/m³Feb 1225 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb24Moderate
Mar26Moderate
Apr28Moderate
May36Poor
Jun49Poor
Jul52Poor
Aug47Poor
Sep41Poor
Oct31Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Bertioga?

Bertioga sits at 23.9°S, 46.1°W, 8 m above sea level, in Brazil. The nearest listed city is Guarujá, 20 km away.

Topography around Bertioga

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

Within 3 km, the terrain around Bertioga has significant variations in elevation — a maximum elevation change of 272 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,178 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,434 m.

The land around Bertioga is covered by water (43%) and trees (26%) within 3 km, trees (53%) and water (39%) within 16 km, and water (45%) and trees (36%) within 80 km.

3 km
272 m
16 km
1,178 m
80 km
1,434 m
treesgrasslandartificial surfacesbare terrainwatermangroves
May weather nearby: Guarujá 20 km · Santos 23 km · São Vicente 28 km · Rio Grande da Serra 29 km · Cubatão 29 km · Praia Grande 32 km · Ribeirão Pires 32 km · Biritiba Mirim 33 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 Bertioga (-23.8544°, -46.1386°, elevation 8 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).