Porto Seguro weather in March

In March, Porto Seguro sees average daytime highs of 28°C and overnight lows near 25°C, with 113 mm of rain across 18.8 wet days and about 12.1 hours of daylight. It is the 1st-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 38% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of March to 11 h 54 min by month's end. Set against the rest of the year, March is Porto Seguro's 9th-clearest and 12th-windiest month. For the whole year in context, see Porto Seguro's year-round climate.

Daytime high
28°
1st warmest
Overnight low
25°
12th coldest
Rainfall
113 mm
18.8 wet days
Daylight
12 h 06 min
5:42 AM – 5:49 PM
Cloud cover
56%
9th clearest
Wind
12 km/h
12th windiest
Solar energy
5.66 kWh/m²
Travel score
5.0
out of 10

Porto Seguro 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 Porto Seguro reaches about 28°C in the afternoon and slips back to 25°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 29°C. Set against its neighbours, March runs on par with February and on par with April.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825
312825

How March really feels in Porto Seguro

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.

Porto Seguro weather by month

How March compares with the rest of the year at a glance. March is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°7014.812.95.7
Feb28° / 25°6414.712.65.2
Mar28° / 25°11318.812.15.0
Apr27° / 24°11518.811.65.2
May26° / 23°9616.811.25.8
Jun25° / 22°7315.6116.1
Jul25° / 22°6716.711.16.2
Aug25° / 22°5312.811.46.7
Sep25° / 22°5111.111.96.8
Oct26° / 23°9613.112.46.3
Nov27° / 24°15815.612.85.6
Dec27° / 24°11013.9135.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 18% of March, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45545
55545
65545
75545
85446
95446
105446
115446
125446
135446
145545
155545
165446
175545
185545
195545
205545
215644
225644
235743
245743
255743
265842
275941
285941
296040
305941
316040

Chance of precipitation in March

Any precipitation

Porto Seguro gets around 113 mm of rain over 18.8 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 60% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
153
254
354
455
556
657
757
858
958
1059
1159
1260
1360
1461
1561
1661
1762
1862
1962
2063
2163
2263
2363
2463
2563
2662
2762
2862
2961
3060
3160

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
107228
207228
307129
407129
507030
607030
706931
806931
906832
1006733
1106733
1206634
1306634
1406535
1506535
1606535
1706535
1806535
1906535
2016534
2116534
2216633
2316732
2416831
2516831
2616930
2717029
2817029
2917128
3027127
3127226

Wind in March

Winds average 12 km/h in March, the calmest month.

Across March, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 18 min at the start of March to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over March. Sunrise moves from 5:39 AM to 5:45 AM, and sunset from 6:00 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:396:00
212.35:395:59
312.35:405:59
412.35:405:58
512.35:405:57
612.35:405:57
712.35:415:56
812.25:415:55
912.25:415:55
1012.25:415:54
1112.25:415:53
1212.25:425:52
1312.25:425:52
1412.15:425:51
1512.15:425:50
1612.15:425:49
1712.15:435:49
1812.15:435:48
1912.15:435:47
2012.15:435:46
2112.05:435:45
2212.05:445:45
2312.05:445:44
2412.05:445:43
2512.05:445:42
2612.05:445:42
2711.95:445:41
2811.95:445:40
2911.95:455:39
3011.95:455:38
3111.95:455:38

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.66 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 6.46 kWh/m² in January across the year — March's 5.66 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.0Intense
56.0Intense
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in March

Is March a good time to visit Porto Seguro?

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

5.0
Sightseeing
12th-best month of the year
5.6
Beach & pool
7th-best month of the year

March is a reasonable time to visit Porto Seguro for sightseeing.

What to pack for Porto Seguro in March

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

In March, Porto Seguro sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Porto Seguro 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 at the nearest coast (about 22 km away) is warmest in April at about 28°C and coldest in August near 25°C.

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

24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May27Warm
Jun26Warm
Jul25Warm
Aug25Warm
Sep25Warm
Oct25Warm
Nov26Warm
Dec26Warm

UV index in Porto Seguro in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porto Seguro peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 16UV 15Jun 22UV 7
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul7Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Porto Seguro?

Porto Seguro sits at 16.4°S, 39.1°W, 4 m above sea level, in Brazil. The nearest listed city is Santa Cruz Cabrália, 20 km away.

Topography around Porto Seguro

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

Within 3 km, the terrain around Porto Seguro has only modest variations in elevation — a maximum elevation change of 61 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 109 m; within 80 km, large variations in elevation — a maximum elevation change of 761 m.

The land around Porto Seguro is covered by water (46%) within 3 km, water (46%) and trees (38%) within 16 km, and trees (40%), water (33%) and grassland (25%) within 80 km.

3 km
61 m
16 km
109 m
80 km
761 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
March weather nearby: Santa Cruz Cabrália 20 km · Itabela 54 km · Eunápolis 56 km · Belmonte 68 km · Guaratinga 78 km · Itamaraju 82 km · Canavieiras 87 km · Prado 101 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 Porto Seguro (-16.4497°, -39.0647°, elevation 4 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).