Mongaguá weather in March

In March, Mongaguá sees average daytime highs of 28°C and overnight lows near 22°C, with 274 mm of rain across 24.2 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 11% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Mongaguá's 7th-clearest and 11th-windiest month. For the whole year in context, see Mongaguá's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
274 mm
24.2 wet days
Daylight
12 h 12 min
7:11 AM – 7:21 PM
Cloud cover
72%
7th clearest
Wind
7 km/h
11th windiest
Solar energy
4.95 kWh/m²
Travel score
4.0
out of 10

Mongaguá is human settlement in Brazil.

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical March day in Mongaguá reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, March runs about 1°C cooler than February and about 1°C warmer than April.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252821
262821
272821
282821
292821
302821
312821

How March really feels in Mongaguá

Once humidity and wind are folded in, March averages 3 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
3
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Mongaguá weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°33425.913.33.5
Feb29° / 23°30022.212.83.5
Mar28° / 22°27424.212.24.0
Apr27° / 20°13114.911.55.6
May25° / 18°10512.410.96.5
Jun24° / 16°779.110.57.1
Jul23° / 15°879.210.77.2
Aug24° / 16°719.311.27.1
Sep24° / 17°1251411.96.2
Oct25° / 19°15317.112.65.4
Nov26° / 20°19019.113.24.9
Dec28° / 22°23522.413.54.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 20% of March, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63169
73169
83070
93070
103070
113070
123070
133070
143070
153070
163070
173070
183169
193169
203169
213169
223268
233268
243268
253268
263268
273367
283367
293367
303466
313565

Chance of precipitation in March

Any precipitation

Mongaguá gets around 274 mm of rain over 24.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
178
278
378
478
578
678
778
879
979
1079
1179
1279
1379
1479
1579
1679
1779
1879
1979
2079
2178
2278
2377
2477
2576
2675
2774
2873
2971
3070
3169

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
102176912
202177011
302177011
402177110
502177110
602177110
70218719
80218719
90218728
100219718
110219727
120320707
130321706
140322696
150323695
160324694
170425674
180426664
190427663
200428653
210529633
220530623
230531613
240532603
250633583
260633583
270634582
280634582
290735562
300735562
311835542

Wind in March

Winds average 7 km/h in March.

Across March, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
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 March

DaylightNight

Daylight runs from about 12 h 30 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over March. Sunrise moves from 7:04 AM to 7:17 AM, and sunset from 7:36 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.57:047:36
212.57:047:35
312.57:057:34
412.57:057:33
512.47:067:32
612.47:067:31
712.47:077:30
812.47:077:29
912.37:087:28
1012.37:087:27
1112.37:097:26
1212.37:097:25
1312.27:107:24
1412.27:107:23
1512.27:107:22
1612.27:117:21
1712.27:117:20
1812.17:127:19
1912.17:127:18
2012.17:137:17
2112.17:137:16
2212.07:137:15
2312.07:147:14
2412.07:147:13
2512.07:157:12
2611.97:157:11
2711.97:157:10
2811.97:167:09
2911.97:167:08
3011.87:177:07
3111.87:177:06

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.95 kWh/m².

For context, solar energy here swings from a low near 3.13 kWh/m² to a high of 5.91 kWh/m² in December across the year — March's 4.95 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.9Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in March

Hazard calendar for Mongaguá

In seasonPeak

In March, Mongaguá sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mongaguá'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 March a good time to visit Mongaguá?

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

4.0
Sightseeing
10th-best month of the year
4.7
Beach & pool
10th-best month of the year

March is a reasonable time to visit Mongaguá for sightseeing.

What to pack for Mongaguá in March

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

In March, Mongaguá sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Mongaguá in March

The nearest coast averages about 27°C in March — 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 20°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
Aug20Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec25Warm

UV index in Mongaguá in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mongaguá peaks around January 23 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 highExtremeJan 23UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar9Very high
Apr8Very high
May7High
Jun6High
Jul5Moderate
Aug7High
Sep7Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in Mongaguá in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mongaguá 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 Mongaguá?

Mongaguá sits at 24.1°S, 46.6°W, 8 m above sea level, in Brazil. The nearest listed city is Itanhaém, 20 km away.

Topography around Mongaguá

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

Within 3 km, the terrain around Mongaguá has significant variations in elevation — a maximum elevation change of 472 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,055 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,404 m.

The land around Mongaguá is covered by water (42%) and trees (41%) within 3 km, water (48%) and trees (46%) within 16 km, and water (44%) and trees (42%) within 80 km.

3 km
472 m
16 km
1,055 m
80 km
1,404 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
March weather nearby: Itanhaém 20 km · Praia Grande 24 km · São Vicente 27 km · Cubatão 30 km · Parelheiros 31 km · Santos 33 km · Embu-Guaçu 35 km · Grajaú 36 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 Mongaguá (-24.0931°, -46.6208°, 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).