Castelo weather in March

In March, Castelo sees average daytime highs of 28°C and overnight lows near 19°C, with 159 mm of rain across 16.6 wet days and about 12.1 hours of daylight. It is the 3rd-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 19% of the time in March, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Castelo's 8th-clearest and 11th-windiest month. For the whole year in context, see Castelo's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
19°
9th coldest
Rainfall
159 mm
16.6 wet days
Daylight
12 h 06 min
6:50 AM – 6:59 PM
Cloud cover
68%
8th clearest
Wind
6 km/h
11th windiest
Solar energy
5.1 kWh/m²
Travel score
5.0
out of 10

Castelo 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 Castelo reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, March runs about 1°C cooler than February and about 2°C warmer than April.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92919
102919
112919
122919
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302719
312719

Castelo 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
Jan29° / 20°14814.113.14.9
Feb29° / 20°10711.912.74.8
Mar28° / 19°15916.612.15.0
Apr27° / 18°8813.411.56.0
May25° / 16°438.6117.1
Jun24° / 14°235.510.87.8
Jul24° / 14°24610.97.8
Aug24° / 14°266.511.37.7
Sep26° / 16°589.311.96.9
Oct26° / 17°11012.312.56.1
Nov26° / 18°19117.1135.2
Dec28° / 19°2241913.24.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 19% of March, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53763
63763
73763
83664
93664
103664
113664
123664
133664
143664
153565
163466
173466
183565
193664
203664
213763
223862
233862
243862
253961
263961
274060
284159
294159
304258
314258

Chance of precipitation in March

Any precipitation

Castelo gets around 159 mm of rain over 16.6 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 53% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
152
253
353
453
553
654
754
854
954
1053
1153
1253
1354
1454
1554
1654
1755
1855
1955
2054
2154
2254
2353
2453
2553
2652
2752
2851
2951
3051
3150

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1119755
2119755
3119755
4119746
5119746
6119746
7119746
8119746
9019756
10019756
11019756
12019756
13019756
14019756
15019756
16019765
17019765
18019765
19019774
20020764
21120754
22121753
23121753
24122743
25122743
26123733
27123742
28223732
29224722
30224722
31225712

Wind in March

Winds average 6 km/h in March.

Across March, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 24 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 36 minutes over March. Sunrise moves from 6:45 AM to 6:54 AM, and sunset from 7:11 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:457:11
212.46:457:10
312.46:457:10
412.46:467:09
512.46:467:08
612.36:477:07
712.36:477:07
812.36:477:06
912.36:487:05
1012.36:487:04
1112.26:487:03
1212.26:497:02
1312.26:497:01
1412.26:497:01
1512.26:507:00
1612.16:506:59
1712.16:506:58
1812.16:516:57
1912.16:516:56
2012.16:516:55
2112.06:526:54
2212.06:526:53
2312.06:526:52
2412.06:526:51
2512.06:536:51
2611.96:536:50
2711.96:536:49
2811.96:546:48
2911.96:546:47
3011.96:546:46
3111.86:546:45

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.1 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.96 kWh/m² in February across the year — March's 5.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in March

Hazard calendar for Castelo

In seasonPeak

In March, Castelo sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Castelo's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Castelo?

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

5.0
Sightseeing
9th-best month of the year
5.8
Beach & pool
10th-best month of the year

March is a reasonable time to visit Castelo for sightseeing.

What to pack for Castelo in March

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

In March, Castelo sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Castelo 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 66 km away) is warmest in March at about 25°C and coldest in September near 22°C.

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

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar25Warm
Apr25Warm
May25Warm
Jun23Refreshing
Jul23Refreshing
Aug23Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Refreshing
Dec24Warm

UV index in Castelo in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Castelo peaks around February 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 11UV 14Jun 20UV 6
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul7High
Aug9Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Castelo?

Castelo sits at 20.6°S, 41.2°W, 129 m above sea level, in Brazil. The nearest listed city is Vargem Alta, 20 km away.

Topography around Castelo

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

Within 3 km, the terrain around Castelo has large variations in elevation — a maximum elevation change of 768 m around an average of 224 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,935 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,841 m.

The land around Castelo is covered by trees (56%) and grassland (37%) within 3 km, trees (53%) and grassland (46%) within 16 km, and trees (50%) and grassland (41%) within 80 km.

3 km
768 m
16 km
1,935 m
80 km
2,841 m
treesgrasslandartificial surfaceswaterwetland
March weather nearby: Vargem Alta 20 km · Cachoeiro de Itapemirim 28 km · Muniz Freire 28 km · Alegre 40 km · Iúna 46 km · Ibatiba 53 km · Mimoso do Sul 55 km · Piúma 55 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 Castelo (-20.6036°, -41.1847°, elevation 129 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).