Alcântara weather in March

In March, Alcântara sees average daytime highs of 29°C and overnight lows near 24°C, with 391 mm of rain across 30.3 wet days and about 12 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 3% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of March to 12 hours by month's end. Set against the rest of the year, March is Alcântara's 12th-clearest and 10th-windiest month. For the whole year in context, see Alcântara's year-round climate.

Daytime high
29°
12th warmest
Overnight low
24°
1st coldest
Rainfall
391 mm
30.3 wet days
Daylight
12 hours
6:07 AM – 6:08 PM
Cloud cover
84%
12th clearest
Wind
10 km/h
10th windiest
Solar energy
4.58 kWh/m²
Travel score
2.9
out of 10

Alcântara is town in Maranhao, 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 29°C through the month.

A typical March day in Alcântara reaches about 29°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, March runs on par with February and on par with April.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How March really feels in Alcântara

Once humidity and wind are folded in, March averages 31 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
31
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.

Alcântara weather by month

How March compares with the rest of the year at a glance. March is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°18824.212.13.4
Feb29° / 25°26025.812.13.1
Mar29° / 24°39130.3122.9
Apr29° / 25°37628.711.93.0
May29° / 25°26526.511.93.3
Jun29° / 25°12920.811.94.0
Jul30° / 25°8317.111.94.7
Aug30° / 25°236.811.95.5
Sep31° / 26°112.2125.8
Oct31° / 26°122.712.15.7
Nov31° / 26°214.912.15.3
Dec30° / 26°5812.612.14.5

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in March, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% of March, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31585
41486
51486
61486
71387
81387
91387
101387
111387
121387
131387
141387
151387
161288
171288
181189
191090
201090
211090
221090
23991
24991
25892
26892
27793
28694
29694
30694
31694

Chance of precipitation in March

Any precipitation

Alcântara gets around 391 mm of rain over 30.3 wet days in March, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 98% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
295
395
496
596
696
797
897
997
1098
1198
1298
1398
1498
1598
1698
1798
1898
1998
2098
2198
2298
2398
2498
2598
2699
2799
2899
2999
3099
3199

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
16634
26634
36535
46535
56535
66436
76337
86337
96238
106139
116139
126040
135941
145941
155941
165941
175941
185941
196040
206040
216040
226040
236040
246040
256040
266040
275941
285941
295941
305842
315743

Wind in March

Winds average 10 km/h in March.

Across March, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
309calm
319calm

Sunrise & sunset in March

DaylightNight

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

Days grow by about 0 minutes over March. Sunrise moves from 6:09 AM to 6:03 AM, and sunset from 6:12 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:096:12
212.06:096:12
312.06:096:12
412.06:096:12
512.06:096:11
612.06:096:11
712.06:096:11
812.06:086:10
912.06:086:10
1012.06:086:10
1112.06:086:10
1212.06:086:09
1312.06:076:09
1412.06:076:09
1512.06:076:08
1612.06:076:08
1712.06:076:07
1812.06:066:07
1912.06:066:07
2012.06:066:06
2112.06:066:06
2212.06:056:06
2312.06:056:05
2412.06:056:05
2512.06:056:04
2612.06:046:04
2712.06:046:04
2812.06:046:03
2912.06:046:03
3012.06:036:03
3112.06:036:02

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.58 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.31 kWh/m² in October across the year — March's 4.58 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in March

Hazard calendar for Alcântara

In seasonPeak

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

Alcântara's monsoon runs January–May, when most of the year's rain falls.

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

Is March a good time to visit Alcântara?

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

2.9
Sightseeing
12th-best month of the year
3.7
Beach & pool
12th-best month of the year

March is a weaker month for outdoor sightseeing in Alcântara.

What to pack for Alcântara in March

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

In March, Alcântara sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 30 days see rain.

light clothesrain gearsun protection

Sea temperature near Alcântara in March

The nearest coast averages about 28°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 May at about 29°C and coldest in October near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Warm
Nov28Warm
Dec28Tropical

UV index in Alcântara in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alcântara peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Alcântara 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 Alcântara is worst in February — around 18 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodFeb 2018 µg/m³Jul 157 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb18Moderate
Mar18Moderate
Apr13Moderate
May8Good
Jun7Good
Jul7Good
Aug8Good
Sep9Good
Oct10Good
Nov10Good
Dec11Good
Location & terrain

Where is Alcântara?

Alcântara sits at 2.4°S, 44.4°W, 32 m above sea level, in Brazil. The nearest listed city is São Luís, 19 km away.

Topography around Alcântara

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

Within 3 km, the terrain around Alcântara has only modest variations in elevation — a maximum elevation change of 58 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 64 m; within 80 km, only modest variations in elevation — a maximum elevation change of 102 m.

The land around Alcântara is covered by water (35%), trees (29%) and mangroves (27%) within 3 km, water (53%) and trees (33%) within 16 km, and water (38%) and trees (35%) within 80 km.

3 km
58 m
16 km
64 m
80 km
102 m
treesgrasslandartificial surfaceswaterwetlandmangroves
March weather nearby: São Luís 19 km · Raposa 35 km · Paço do Lumiar 37 km · Bequimão 41 km · São José de Ribamar 43 km · São Bento 55 km · Icatu 57 km · Palmeirândia 60 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 Alcântara (-2.4041°, -44.4167°, elevation 32 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).