São Mateus do Maranhão weather in June

In June, São Mateus do Maranhão sees average daytime highs of 32°C and overnight lows near 23°C, with 37 mm of rain across 7.6 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 42% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of June to 11 h 48 min by month's end. Set against the rest of the year, June is São Mateus do Maranhão's 5th-clearest and 7th-windiest month. For the whole year in context, see São Mateus do Maranhão's year-round climate.

Daytime high
32°
8th warmest
Overnight low
23°
2nd coldest
Rainfall
37 mm
7.6 wet days
Daylight
11 h 48 min
6:05 AM – 5:51 PM
Cloud cover
47%
5th clearest
Wind
7 km/h
7th windiest
Solar energy
5.02 kWh/m²
Travel score
4.4
out of 10

São Mateus do Maranhão is settlement in Brazil.

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical June day in São Mateus do Maranhão reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 33°C. Set against its neighbours, June runs on par with May and about 1°C cooler than July.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303223

How June really feels in São Mateus do Maranhão

Once humidity and wind are folded in, June averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

São Mateus do Maranhão weather by month

How June compares with the rest of the year at a glance. June 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
Jan32° / 24°24224.312.22.6
Feb31° / 24°2632512.12.5
Mar31° / 24°31228.6122.5
Apr31° / 24°27727.111.92.6
May31° / 24°13419.211.83.4
Jun32° / 23°377.611.84.4
Jul33° / 23°183.611.84.3
Aug34° / 24°51.211.93.7
Sep35° / 25°61.1123.0
Oct36° / 25°133.112.12.6
Nov35° / 25°446.812.22.6
Dec34° / 25°11314.312.22.6

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 31% of June, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
26238
36238
46337
56436
66535
76634
86733
96832
107030
117129
127228
137327
147426
157426
167525
177624
187624
197822
207822
217822
227921
237921
248020
258020
268020
278020
288020
298020
308119

Chance of precipitation in June

Any precipitation

São Mateus do Maranhão gets around 37 mm of rain over 7.6 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 26% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
241
339
437
535
634
732
831
929
1028
1127
1226
1325
1425
1524
1623
1723
1822
1922
2021
2121
2220
2320
2420
2519
2619
2718
2818
2918
3017

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1015841
2016039
3016237
4026335
5026533
6026830
7036928
8037126
9047323
10047521
11057619
12067717
13067816
14077914
15088012
16098011
170108010
18011809
19011818
20012817
21013816
22014806
23014815
24015814
25015814
26016804
27116803
28117793
29117802
30117802

Wind in June

Winds average 7 km/h in June.

Across June, 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.

0246810151015202530
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

Sunrise & sunset in June

DaylightNight

Daylight runs from about 11 h 48 min at the start of June to 11 h 48 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 6:02 AM to 6:08 AM, and sunset from 5:49 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:025:49
211.86:025:49
311.86:025:49
411.86:035:49
511.86:035:49
611.86:035:50
711.86:035:50
811.86:035:50
911.86:045:50
1011.86:045:50
1111.86:045:50
1211.86:045:50
1311.86:045:51
1411.86:055:51
1511.86:055:51
1611.86:055:51
1711.86:055:51
1811.86:065:52
1911.86:065:52
2011.86:065:52
2111.86:065:52
2211.86:065:52
2311.86:075:53
2411.86:075:53
2511.86:075:53
2611.86:075:53
2711.86:075:53
2811.86:085:54
2911.86:085:54
3011.86:085:54

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.02 kWh/m².

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.36 kWh/m² in October across the year — June's 5.02 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in June

Hazard calendar for São Mateus do Maranhão

In seasonPeak

None of São Mateus do Maranhão'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 Mateus do Maranhão's monsoon runs January–April, 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 Mateus do Maranhão?

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

4.4
Sightseeing
1st-best month of the year
6.9
Beach & pool
3rd-best month of the year

June is a reasonable time to visit São Mateus do Maranhão for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Mateus do Maranhão in June

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

In June, São Mateus do Maranhão sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in São Mateus do Maranhão in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 São Mateus do Maranhão peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 16UV 15Jul 24UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in São Mateus do Maranhão 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 Mateus do Maranhão is worst in October — around 25 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (June, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 2125 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb16Moderate
Mar15Moderate
Apr13Moderate
May10Good
Jun8Good
Jul9Good
Aug12Good
Sep16Moderate
Oct25Moderate
Nov23Moderate
Dec17Moderate
Location & terrain

Where is São Mateus do Maranhão?

São Mateus do Maranhão sits at 4.0°S, 44.5°W, 47 m above sea level, in Brazil. The nearest listed city is Alto Alegre do Maranhão, 19 km away.

Topography around São Mateus do Maranhão

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

Within 3 km, the terrain around São Mateus do Maranhão has only modest variations in elevation — a maximum elevation change of 28 m around an average of 42 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 76 m; within 80 km, only modest variations in elevation — a maximum elevation change of 174 m.

The land around São Mateus do Maranhão is covered by grassland (44%) and trees (29%) within 3 km, grassland (50%) and trees (31%) within 16 km, and trees (47%) and grassland (46%) within 80 km.

3 km
28 m
16 km
76 m
80 km
174 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
June weather nearby: Alto Alegre do Maranhão 19 km · Bacabal 40 km · Coroatá 40 km · Peritoró 41 km · São Luís Gonzaga do Maranhão 43 km · Pirapemas 45 km · Matões do Norte 46 km · Cantanhede 47 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 Mateus do Maranhão (-4.0417°, -44.475°, elevation 47 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).