Olho d’Água das Cunhãs weather in March

In March, Olho d’Água das Cunhãs sees average daytime highs of 31°C and overnight lows near 24°C, with 281 mm of rain across 29 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 31°C through the month. The sky is clear or mostly clear about 3% of the time in March, and the air most often feels miserable.

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 Olho d’Água das Cunhãs's 12th-clearest and 11th-windiest month. For the whole year in context, see Olho d’Água das Cunhãs's year-round climate.

Daytime high
31°
12th warmest
Overnight low
24°
4th coldest
Rainfall
281 mm
29 wet days
Daylight
12 hours
6:09 AM – 6:11 PM
Cloud cover
84%
12th clearest
Wind
5 km/h
11th windiest
Solar energy
4.44 kWh/m²
Travel score
2.4
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical March day in Olho d’Água das Cunhãs reaches about 31°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)
13123
23123
33123
43123
53123
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213123
223123
233123
243123
253123
263123
273123
283123
293123
303124
313124

How March really feels in Olho d’Água das Cunhãs

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.

Olho d’Água das Cunhãs 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
Jan32° / 24°23024.912.22.6
Feb31° / 23°24624.712.12.5
Mar31° / 24°28129122.4
Apr31° / 24°2382611.92.7
May32° / 24°11117.911.83.4
Jun32° / 23°306.411.84.3
Jul33° / 23°143.211.84.1
Aug35° / 24°51.411.93.3
Sep36° / 25°71.3122.7
Oct36° / 25°183.412.12.5
Nov35° / 25°50812.22.6
Dec34° / 25°12115.712.22.7

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 9% of March, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51486
61486
71486
81387
91387
101387
111387
121288
131288
141288
151288
161288
171189
181189
191189
201090
211090
221090
231090
24991
25991
261090
271090
281090
291090
301189
311189

Chance of precipitation in March

Any precipitation

Olho d’Água das Cunhãs gets around 281 mm of rain over 29 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 93% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
390
490
591
691
792
892
992
1093
1193
1293
1394
1494
1594
1694
1794
1895
1995
2095
2195
2295
2395
2495
2594
2694
2794
2894
2994
3094
3193

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the miserable band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14258
24159
34159
44060
53961
63961
73862
83763
93763
103664
113664
123565
133565
143466
153466
163466
173466
183367
193367
203367
213367
223367
233367
243367
253367
263268
273169
283169
293070
302971
312971

Wind in March

Winds average 5 km/h in March.

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 6:11 AM to 6:06 AM, and sunset from 6:16 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:116:16
212.16:116:16
312.16:116:16
412.16:116:15
512.16:116:15
612.16:116:15
712.16:116:14
812.16:106:14
912.16:106:14
1012.16:106:13
1112.06:106:13
1212.06:106:13
1312.06:106:12
1412.06:106:12
1512.06:096:11
1612.06:096:11
1712.06:096:11
1812.06:096:10
1912.06:096:10
2012.06:096:09
2112.06:086:09
2212.06:086:08
2312.06:086:08
2412.06:086:08
2512.06:086:07
2612.06:076:07
2712.06:076:06
2812.06:076:06
2912.06:076:05
3012.06:076:05
3112.06:066:05

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.44 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.27 kWh/m² in October across the year — March's 4.44 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in March

Hazard calendar for Olho d’Água das Cunhãs

In seasonPeak

In March, Olho d’Água das Cunhãs sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Olho d’Água das Cunhãs's monsoon runs January–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 Olho d’Água das Cunhãs?

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

2.4
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 Olho d’Água das Cunhãs.

What to pack for Olho d’Água das Cunhãs in March

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

In March, Olho d’Água das Cunhãs sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Olho d’Água das Cunhãs 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 Olho d’Água das Cunhãs peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jul 19UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Olho d’Água das Cunhãs 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 Olho d’Água das Cunhãs is worst in November — around 27 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (June, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1426 µg/m³Jun 189 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar14Moderate
Apr13Moderate
May11Good
Jun9Good
Jul10Good
Aug10Good
Sep13Moderate
Oct22Moderate
Nov27Moderate
Dec20Moderate
Location & terrain

Where is Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs sits at 4.1°S, 45.1°W, 75 m above sea level, in Brazil. The nearest listed city is Vitorino Freire, 22 km away.

Topography around Olho d’Água das Cunhãs

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Olho d’Água das Cunhãs.

Within 3 km, the terrain around Olho d’Água das Cunhãs has only modest variations in elevation — a maximum elevation change of 41 m around an average of 32 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, significant variations in elevation — a maximum elevation change of 362 m.

The land around Olho d’Água das Cunhãs is covered by grassland (88%) within 3 km, grassland (92%) within 16 km, and grassland (59%) and trees (37%) within 80 km.

3 km
41 m
16 km
102 m
80 km
362 m
treesshrubsgrasslandartificial surfaceswaterwetland
March weather nearby: Vitorino Freire 22 km · Pio XII 34 km · Paulo Ramos 37 km · Bacabal 39 km · Lago da Pedra 47 km · São Luís Gonzaga do Maranhão 56 km · Santa Inês 60 km · Santa Luzia 63 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 Olho d’Água das Cunhãs (-4.1387°, -45.1188°, elevation 75 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).