São Sebastião weather in June

In June, São Sebastião sees average daytime highs of 27°C and overnight lows near 14°C, with 4 mm of rain across 0.6 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 61% of the time in June, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of June to 11 h 06 min by month's end. Set against the rest of the year, June is São Sebastião's 3rd-clearest and 4th-windiest month. For the whole year in context, see São Sebastião's year-round climate.

Daytime high
27°
12th warmest
Overnight low
14°
2nd coldest
Rainfall
4 mm
0.6 wet days
Daylight
11 h 06 min
7:40 AM – 6:43 PM
Cloud cover
36%
3rd clearest
Wind
9 km/h
4th windiest
Solar energy
4.62 kWh/m²
Travel score
8.4
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical June day in São Sebastião reaches about 27°C in the afternoon and slips back to 14°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, June runs on par with May and on par with July.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62715
72715
82715
92715
102715
112715
122714
132714
142714
152714
162714
172714
182714
192714
202614
212614
222614
232614
242614
252614
262614
272614
282614
292614
302614

São Sebastião weather by month

How June compares with the rest of the year at a glance. June is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°2032112.84.6
Feb28° / 19°16018.212.54.8
Mar28° / 19°18120.112.14.8
Apr28° / 18°7111.311.76.1
May27° / 16°173.211.37.7
Jun27° / 14°40.611.18.4
Jul27° / 14°0011.18.6
Aug29° / 15°51.211.57.5
Sep30° / 18°284.811.95.6
Oct30° / 19°10413.312.44.6
Nov28° / 19°20121.212.74.3
Dec28° / 19°22523.212.94.3

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37624
47723
57723
67723
77723
87723
97723
107723
117723
127723
137723
147723
157723
167723
177822
187822
197822
207822
217723
227723
237723
247921
257921
267921
278020
288020
298020
308119

Chance of precipitation in June

Any precipitation

São Sebastião gets around 4 mm of rain over 0.6 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 6% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
16
26
36
45
55
64
74
83
93
103
112
122
132
142
152
161
171
181
191
201
211
221
231
241
251
261
270
280
290
300

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1274924
2284923
3304921
4324919
5344917
6364916
7384814
8404713
9424611
10454510
1147449
1249438
1352417
1454406
1556395
1658375
1760364
1862344
1963334
2066313
2167303
2269283
2371272
2472262
2573252
2674242
2776231
2877221
2978211
3079201

Wind in June

Winds average 9 km/h in June.

Across June, 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.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in June

DaylightNight

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

Days grow by about 0 minutes over June. Sunrise moves from 7:35 AM to 7:42 AM, and sunset from 6:42 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:356:42
211.17:356:42
311.17:366:42
411.17:366:42
511.17:366:42
611.17:376:42
711.17:376:42
811.17:376:42
911.17:376:42
1011.17:386:42
1111.17:386:43
1211.17:386:43
1311.17:396:43
1411.17:396:43
1511.17:396:43
1611.17:406:43
1711.17:406:43
1811.17:406:43
1911.17:406:44
2011.17:416:44
2111.17:416:44
2211.17:416:44
2311.17:416:44
2411.17:416:45
2511.17:426:45
2611.17:426:45
2711.17:426:45
2811.17:426:46
2911.17:426:46
3011.17:426:46

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.62 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.62 kWh/m² to a high of 6.14 kWh/m² in October across the year — June's 4.62 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in June

Hazard calendar for São Sebastião

In seasonPeak

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

São Sebastião's monsoon runs October–March, when most of the year's rain falls.

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

Is June a good time to visit São Sebastião?

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

8.4
Sightseeing
2nd-best month of the year
8.3
Beach & pool
3rd-best month of the year

June is one of the better times to visit São Sebastião for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Sebastião in June

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

In June, São Sebastião sees daytime highs around 27°C and nights near 14°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in São Sebastião in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Sebastião peaks around February 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 16Jun 23UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov15Extreme
Dec13Extreme

Air quality in São Sebastião in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in São Sebastião is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 1830 µg/m³Jan 1511 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr14Moderate
May15Moderate
Jun13Moderate
Jul13Moderate
Aug15Moderate
Sep32Moderate
Oct21Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is São Sebastião?

São Sebastião sits at 15.9°S, 47.8°W, 1,048 m above sea level, in Brazil. The nearest listed city is Jardim Botânico, 6.0 km away.

Topography around São Sebastião

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

Within 3 km, the terrain around São Sebastião has only modest variations in elevation — a maximum elevation change of 233 m around an average of 968 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, large variations in elevation — a maximum elevation change of 779 m.

The land around São Sebastião is covered by grassland (34%), artificial surfaces (31%) and trees (23%) within 3 km, grassland (39%), trees (24%) and shrubs (21%) within 16 km, and grassland (34%), trees (25%) and cropland (22%) within 80 km.

3 km
233 m
16 km
343 m
80 km
779 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Jardim Botânico 6.0 km · Lago Sul 13 km · Paranoá 14 km · Plano Piloto 17 km · Itapoã 17 km · Park Way 18 km · Sudoeste/Octagonal 20 km · Lago Norte 20 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 São Sebastião (-15.9029°, -47.7761°, elevation 1,048 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. 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).