Cachoeira do Arari weather in March

In March, Cachoeira do Arari sees average daytime highs of 30°C and overnight lows near 23°C, with 518 mm of rain across 30.7 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 30°C through the month. The sky is clear or mostly clear about 1% of the time in March, and the air most often feels miserable.

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 Cachoeira do Arari's 12th-clearest and 10th-windiest month. For the whole year in context, see Cachoeira do Arari's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
4th coldest
Rainfall
518 mm
30.7 wet days
Daylight
12 hours
6:25 AM – 6:26 PM
Cloud cover
90%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
4.07 kWh/m²
Travel score
2.5
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 Cachoeira do Arari reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°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)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How March really feels in Cachoeira do Arari

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.

Cachoeira do Arari 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
Jan31° / 23°30328.412.12.5
Feb30° / 23°42227.3122.5
Mar30° / 23°51830.7122.5
Apr30° / 23°48829.6122.4
May31° / 23°35728122.6
Jun32° / 23°14721.311.93.1
Jul32° / 23°8816.611.93.5
Aug33° / 23°4412.8123.4
Sep34° / 24°299.3123.3
Oct34° / 24°276.4123.4
Nov34° / 24°407.7123.3
Dec33° / 24°1231912.12.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in March, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 4% of March, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5595
6595
7595
8595
9595
10595
11595
12595
13595
14595
15595
16595
17595
18595
19595
20496
21397
22397
23397
24397
25397
26397
27397
28397
29496
30496
31496

Chance of precipitation in March

Any precipitation

Cachoeira do Arari gets around 518 mm of rain over 30.7 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 99% and peaks near 99% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
199
299
399
499
599
699
799
899
999
1099
1199
1299
1399
1499
1599
1699
1799
1899
1999
2099
2199
2299
2399
2499
2599
2699
2799
2899
2999
3099
3199

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14357
24357
34357
44357
54357
64357
74357
84258
94258
104258
114159
124159
134060
143961
153961
163862
173862
183862
193763
203763
213664
223664
233565
243565
253466
263466
273367
283268
293169
303169
313070

Wind in March

Winds average 7 km/h in March.

Across March, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 6:28 AM to 6:21 AM, and sunset from 6:30 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:286:30
212.06:286:30
312.06:286:29
412.06:286:29
512.06:286:29
612.06:286:29
712.06:276:28
812.06:276:28
912.06:276:28
1012.06:276:28
1112.06:276:27
1212.06:266:27
1312.06:266:27
1412.06:266:26
1512.06:266:26
1612.06:256:26
1712.06:256:25
1812.06:256:25
1912.06:246:25
2012.06:246:24
2112.06:246:24
2212.06:246:24
2312.06:236:23
2412.06:236:23
2512.06:236:23
2612.06:236:22
2712.06:226:22
2812.06:226:22
2912.06:226:21
3012.06:216:21
3112.06:216:21

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.07 kWh/m².

For context, solar energy here swings from a low near 4 kWh/m² to a high of 6.34 kWh/m² in October across the year — March's 4.07 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.0Bright
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Moderate
284.0Moderate
294.0Moderate
304.0Moderate
314.0Moderate
Planning a trip in March

Hazard calendar for Cachoeira do Arari

In seasonPeak

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

Cachoeira do Arari'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 Cachoeira do Arari?

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

2.5
Sightseeing
9th-best month of the year
3.5
Beach & pool
12th-best month of the year

March is a weaker month for outdoor sightseeing in Cachoeira do Arari.

What to pack for Cachoeira do Arari in March

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

In March, Cachoeira do Arari sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 31 days see rain.

light clothesrain gear

Sea temperature near Cachoeira do Arari 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 at the nearest coast (about 40 km away) is warmest in June at about 29°C and coldest in March 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
Jan29Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Cachoeira do Arari 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 Cachoeira do Arari peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Jul 24UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Cachoeira do Arari 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 Cachoeira do Arari is worst in February — around 22 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (July, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2022 µg/m³Jul 168 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb22Moderate
Mar22Moderate
Apr17Moderate
May11Good
Jun9Good
Jul8Good
Aug9Good
Sep11Good
Oct13Moderate
Nov13Moderate
Dec14Moderate
Location & terrain

Where is Cachoeira do Arari?

Cachoeira do Arari sits at 1.0°S, 49.0°W, 8 m above sea level, in Brazil. The nearest listed city is Ponta de Pedras, 43 km away.

Topography around Cachoeira do Arari

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

Within 3 km, the terrain around Cachoeira do Arari has only modest variations in elevation — a maximum elevation change of 27 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 37 m; within 80 km, only modest variations in elevation — a maximum elevation change of 50 m.

The land around Cachoeira do Arari is covered by grassland (60%) within 3 km, grassland (72%) within 16 km, and grassland (37%), trees (34%) and water (20%) within 80 km.

3 km
27 m
16 km
37 m
80 km
50 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Ponta de Pedras 43 km · Salvaterra 57 km · Soure 59 km · Muaná 64 km · Barcarena 67 km · Belém 71 km · Ananindeua 77 km · Santa Bárbara do Pará 78 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 Cachoeira do Arari (-1.0114°, -48.9633°, elevation 8 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).