Niterói weather in March

In March, Niterói sees average daytime highs of 29°C and overnight lows near 24°C, with 127 mm of rain across 15.3 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 29°C through the month. The sky is clear or mostly clear about 34% 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 Niterói's 8th-clearest and 12th-windiest month. For the whole year in context, see Niterói's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
24°
10th coldest
Rainfall
127 mm
15.3 wet days
Daylight
12 h 12 min
6:57 AM – 7:07 PM
Cloud cover
58%
8th clearest
Wind
10 km/h
12th windiest
Solar energy
5.19 kWh/m²
Travel score
4.9
out of 10
Air quality
Good
PM2.5 9 µg/m³ · 2015

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 Niterói reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, March runs about 1°C cooler than February and about 1°C warmer than April.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272824
282824
292824
302824
312824

How March really feels in Niterói

Once humidity and wind are folded in, March averages 21 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
21
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.

Niterói 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
Jan30° / 24°14515.213.24.6
Feb30° / 25°9311.912.84.7
Mar29° / 24°12715.312.24.9
Apr28° / 23°7711.411.56.2
May26° / 21°7010.710.96.8
Jun25° / 20°416.710.67.6
Jul25° / 19°457.710.77.6
Aug25° / 19°367.211.27.6
Sep26° / 20°6610.211.96.9
Oct26° / 21°8010.612.56.4
Nov27° / 22°12214.813.15.7
Dec28° / 24°13315.113.45.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45149
55149
65149
75050
85149
95149
105050
115050
125050
135050
144951
154951
164951
174852
184753
194852
204753
214852
224852
235050
245050
255149
265149
275248
285347
295446
305545
315644

Chance of precipitation in March

Any precipitation

Niterói gets around 127 mm of rain over 15.3 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 49% and peaks near 51% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
143
244
344
445
545
646
746
847
947
1048
1148
1248
1349
1449
1549
1650
1750
1850
1950
2051
2151
2251
2351
2451
2551
2651
2751
2851
2951
3050
3150

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1097021
2097021
3097021
40106921
50106921
60106921
70106921
80116821
90116821
100116821
110126721
120126820
130136720
140136720
151146619
161146619
171156618
181156618
191166518
201166617
211166617
222176417
232176516
242176516
252186515
262186614
273186514
283196513
293196513
304196512
314206412

Wind in March

Winds average 10 km/h in March, the calmest month.

Across March, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
3110calm

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 6:51 AM to 7:03 AM, and sunset from 7:21 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:517:21
212.56:517:20
312.56:527:19
412.46:527:18
512.46:537:17
612.46:537:16
712.46:537:15
812.36:547:15
912.36:547:14
1012.36:557:13
1112.36:557:12
1212.36:567:11
1312.26:567:10
1412.26:567:09
1512.26:577:08
1612.26:577:07
1712.16:587:06
1812.16:587:05
1912.16:587:04
2012.16:597:03
2112.16:597:02
2212.06:597:01
2312.07:007:00
2412.07:006:59
2512.07:016:58
2611.97:016:57
2711.97:016:56
2811.97:026:55
2911.97:026:54
3011.87:026:53
3111.87:036:52

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.19 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.15 kWh/m² in February across the year — March's 5.19 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.8Bright
314.8Bright
Planning a trip in March

Is March a good time to visit Niterói?

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

4.9
Sightseeing
10th-best month of the year
6.2
Beach & pool
8th-best month of the year

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

What to pack for Niterói in March

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

In March, Niterói sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Niterói in March

The nearest coast averages about 25°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 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 Niterói in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Niterói 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
Location & terrain

Where is Niterói?

Niterói sits at 22.9°S, 43.1°W, 44 m above sea level, in Brazil. The nearest listed city is Rio de Janeiro, 8.0 km away.

Topography around Niterói

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

Within 3 km, the terrain around Niterói has only modest variations in elevation — a maximum elevation change of 207 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 769 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Niterói is covered by artificial surfaces (55%) and trees (26%) within 3 km, water (45%), trees (25%) and artificial surfaces (25%) within 16 km, and trees (38%) and water (34%) within 80 km.

3 km
207 m
16 km
769 m
80 km
2,252 m
treesgrasslandartificial surfaceswaterwetlandmangroves
March weather nearby: Rio de Janeiro 8.0 km · Catete 9.0 km · Santa Teresa 9.0 km · Estácio 11 km · Copacabana 13 km · Ipanema 15 km · Leblon 17 km · Vidigal 19 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 Niterói (-22.8833°, -43.1036°, elevation 44 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).