Magé weather in September

In September, Magé sees average daytime highs of 27°C and overnight lows near 19°C, with 85 mm of rain across 10.8 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 8th-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 36% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Magé's 6th-clearest and 1st-windiest month. For the whole year in context, see Magé's year-round climate.

Daytime high
27°
8th warmest
Overnight low
19°
4th coldest
Rainfall
85 mm
10.8 wet days
Daylight
11 h 54 min
6:50 AM – 6:43 PM
Cloud cover
56%
6th clearest
Wind
7 km/h
1st windiest
Solar energy
4.59 kWh/m²
Travel score
6.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Magé reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719

How September really feels in Magé

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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Magé weather by month

How September compares with the rest of the year at a glance. September 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
Jan31° / 24°24420.413.23.3
Feb32° / 24°1801712.83.4
Mar30° / 23°20519.712.23.8
Apr29° / 21°10113.111.55.3
May26° / 19°7510.510.96.7
Jun26° / 18°477.110.67.3
Jul26° / 17°497.210.87.5
Aug26° / 17°447.211.27.3
Sep27° / 19°8510.811.96.4
Oct28° / 20°11413.312.55.5
Nov28° / 21°2041813.14.5
Dec30° / 23°23020.113.43.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36238
46139
56139
66040
75941
85842
95644
105545
115347
125248
135149
145149
154951
164852
174654
184555
194555
204456
214258
224159
234159
244060
253961
263961
273862
283862
293763
303664

Chance of precipitation in September

Any precipitation

Magé gets around 85 mm of rain over 10.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
128
228
329
429
529
630
730
831
931
1032
1132
1232
1333
1433
1534
1634
1735
1836
1937
2038
2139
2240
2340
2441
2542
2642
2743
2843
2944
3044

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121453310
221452320
321452320
421451330
521352330
621352330
721351340
811352340
911350351
1011251351
1111250361
1211249371
1311148381
1411148392
1511147402
1611046412
1711044423
1811043433
1911042443
2011041454
211940455
221938456
231937466
241936467
251935468
262934469
2729334610
2829334611
2929324512
3029324513

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

Across September, 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 September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:06 AM to 6:36 AM, and sunset from 6:38 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:066:38
211.67:056:38
311.67:046:39
411.67:036:39
511.67:026:39
611.67:016:40
711.77:006:40
811.76:596:40
911.76:586:41
1011.76:576:41
1111.86:566:41
1211.86:556:41
1311.86:536:42
1411.86:526:42
1511.86:516:42
1611.96:506:43
1711.96:496:43
1811.96:486:43
1911.96:476:44
2012.06:466:44
2112.06:456:44
2212.06:446:44
2312.06:436:45
2412.16:426:45
2512.16:416:45
2612.16:406:46
2712.16:396:46
2812.16:386:46
2912.26:376:47
3012.26:366:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.59 kWh/m².

For context, solar energy here swings from a low near 3.37 kWh/m² to a high of 5.98 kWh/m² in February across the year — September's 4.59 kWh/m² falls in the middle.

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
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Magé

In seasonPeak

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

Magé's rainy season runs October–March, when most of the year's rain falls.

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

Is September a good time to visit Magé?

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

6.4
Sightseeing
5th-best month of the year
6.5
Beach & pool
5th-best month of the year

September is a reasonable time to visit Magé for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Magé in September

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

In September, Magé sees daytime highs around 27°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Magé in September

The nearest coast averages about 21°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 53 km away) is warmest in March at about 25°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°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Magé in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Magé peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 13UV 14Jul 13UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun6High
Jul5Moderate
Aug8Very high
Sep6High
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Magé in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Magé is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Mar 1110 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr12Good
May15Moderate
Jun16Moderate
Jul15Moderate
Aug15Moderate
Sep19Moderate
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Magé?

Magé sits at 22.7°S, 43.0°W, 8 m above sea level, in Brazil. The nearest listed city is Guapimirim, 14 km away.

Topography around Magé

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

Within 3 km, the terrain around Magé has only modest variations in elevation — a maximum elevation change of 161 m around an average of 17 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,720 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Magé is covered by trees (53%) within 3 km, trees (47%) within 16 km, and trees (43%), grassland (26%) and water (23%) within 80 km.

3 km
161 m
16 km
1,720 m
80 km
2,252 m
treesgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: Guapimirim 14 km · Itaboraí 21 km · Petrópolis 22 km · Niterói 26 km · São Pedro 27 km · Teresópolis 27 km · Duque de Caxias 31 km · Rio de Janeiro 32 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 Magé (-22.6528°, -43.0406°, 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).