Formosa da Serra Negra weather in March

In March, Formosa da Serra Negra sees average daytime highs of 30°C and overnight lows near 22°C, with 236 mm of rain across 26.8 wet days and about 12 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 2% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of March to 12 hours by month's end. Set against the rest of the year, March is Formosa da Serra Negra's 11th-clearest and 12th-windiest month. For the whole year in context, see Formosa da Serra Negra's year-round climate.

Daytime high
30°
10th warmest
Overnight low
22°
8th coldest
Rainfall
236 mm
26.8 wet days
Daylight
12 hours
6:13 AM – 6:16 PM
Cloud cover
84%
11th clearest
Wind
5 km/h
12th windiest
Solar energy
4.56 kWh/m²
Travel score
2.9
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical March day in Formosa da Serra Negra reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°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)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How March really feels in Formosa da Serra Negra

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.

Formosa da Serra Negra weather by month

How March compares with the rest of the year at a glance. March is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°23426.212.33.0
Feb30° / 22°22224.312.22.9
Mar30° / 22°23626.8122.9
Apr31° / 22°15819.711.93.4
May32° / 22°53911.74.3
Jun33° / 22°60.911.64.7
Jul33° / 22°30.411.74.5
Aug34° / 22°10.311.83.8
Sep35° / 23°121.7123.4
Oct33° / 23°498.112.13.5
Nov32° / 23°11215.512.33.6
Dec31° / 22°1632112.43.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 10% of March, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11387
21387
31387
41387
51387
61288
71288
81288
91189
101189
111189
121189
131189
141189
151090
161090
17991
181090
191090
201090
211090
221189
231189
241189
251288
261288
271486
281486
291585
301684
311684

Chance of precipitation in March

Any precipitation

Formosa da Serra Negra gets around 236 mm of rain over 26.8 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 86% and peaks near 88% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
386
486
586
686
786
886
986
1086
1186
1286
1386
1487
1587
1687
1787
1887
1988
2088
2188
2287
2387
2487
2586
2686
2785
2884
2983
3082
3181

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
12980
22980
32980
42980
52980
62980
72980
82980
91990
101990
111990
121990
131981
141981
150991
160991
170991
180991
190991
200991
210991
220991
230991
241981
251981
261981
271981
281981
291981
301981
311981

Wind in March

Winds average 5 km/h in March, the calmest month.

Across March, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 06 min at the start of March to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over March. Sunrise moves from 6:14 AM to 6:11 AM, and sunset from 6:22 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:146:22
212.16:146:22
312.16:146:21
412.16:146:21
512.16:146:21
612.16:146:20
712.16:146:20
812.16:146:19
912.16:146:19
1012.16:146:18
1112.16:146:18
1212.16:136:18
1312.16:136:17
1412.16:136:17
1512.16:136:16
1612.06:136:16
1712.06:136:15
1812.06:136:15
1912.06:136:14
2012.06:136:14
2112.06:126:13
2212.06:126:13
2312.06:126:12
2412.06:126:12
2512.06:126:11
2612.06:126:11
2712.06:126:10
2812.06:126:10
2912.06:116:09
3012.06:116:09
3112.06:116:08

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.56 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.44 kWh/m² in September across the year — March's 4.56 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in March

Hazard calendar for Formosa da Serra Negra

In seasonPeak

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

Formosa da Serra Negra's monsoon runs November–April, 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 Formosa da Serra Negra?

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

2.9
Sightseeing
11th-best month of the year
4.1
Beach & pool
11th-best month of the year

March is a weaker month for outdoor sightseeing in Formosa da Serra Negra.

What to pack for Formosa da Serra Negra in March

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

In March, Formosa da Serra Negra sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Formosa da Serra Negra in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Formosa da Serra Negra peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 12UV 15Jun 22UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec10Extreme

Air quality in Formosa da Serra Negra 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 Formosa da Serra Negra is worst in October — around 24 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (June, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1524 µg/m³Jun 215 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar11Good
Apr10Good
May7Good
Jun5Good
Jul5Good
Aug12Good
Sep20Moderate
Oct24Moderate
Nov19Moderate
Dec15Moderate
Location & terrain

Where is Formosa da Serra Negra?

Formosa da Serra Negra sits at 6.4°S, 46.2°W, 340 m above sea level, in Brazil. The nearest listed city is Grajaú, 70 km away.

Topography around Formosa da Serra Negra

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Formosa da Serra Negra.

Within 3 km, the terrain around Formosa da Serra Negra has only modest variations in elevation — a maximum elevation change of 110 m around an average of 294 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 447 m; within 80 km, significant variations in elevation — a maximum elevation change of 555 m.

The land around Formosa da Serra Negra is covered by trees (45%) and grassland (45%) within 3 km, trees (50%) and grassland (34%) within 16 km, and trees (43%), grassland (33%) and shrubs (21%) within 80 km.

3 km
110 m
16 km
447 m
80 km
555 m
treesshrubsgrasslandcroplandartificial surfaces
March weather nearby: Grajaú 70 km · Sítio Novo 85 km · São Raimundo das Mangabeiras 101 km · Riachão 112 km · Amarante do Maranhão 115 km · Balsas 122 km · Jenipapo dos Vieiras 134 km · Porto Franco 134 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 Formosa da Serra Negra (-6.4446°, -46.1888°, elevation 340 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. 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).