El Castillo weather in March

In March, El Castillo sees average daytime highs of 30°C and overnight lows near 22°C, with 31 mm of rain across 12 wet days and about 11.9 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 29°C in the first days to 31°C by the end. The sky is clear or mostly clear about 40% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is El Castillo's 2nd-clearest and 2nd-windiest month. For the whole year in context, see El Castillo's year-round climate.

Daytime high
30°
6th warmest
Overnight low
22°
4th coldest
Rainfall
31 mm
12 wet days
Daylight
11 h 54 min
5:50 AM – 5:45 PM
Cloud cover
48%
2nd clearest
Wind
11 km/h
2nd windiest
Solar energy
5.24 kWh/m²
Travel score
4.9
out of 10

El Castillo is historic village in Río San Juan Department, Nicaragua.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 29°C in the first days to 31°C by the end.

A typical March day in El Castillo 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 about 1°C warmer than February and about 2°C cooler than April.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253122
263122
273122
283123
293123
303123
313123

How March really feels in El Castillo

Once humidity and wind are folded in, March averages 24 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
24
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.

El Castillo weather by month

How March compares with the rest of the year at a glance. March is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 22°6020.211.45.0
Feb29° / 22°4115.911.64.9
Mar30° / 22°311211.94.9
Apr31° / 23°4713.412.23.9
May31° / 24°22025.912.52.7
Jun30° / 24°29729.612.62.5
Jul30° / 23°27130.312.62.7
Aug30° / 23°26029.912.42.6
Sep31° / 23°29029.412.12.4
Oct30° / 23°30129.711.82.7
Nov29° / 23°2122611.53.3
Dec28° / 22°11224.211.44.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 34% of March, with mostly cloudy or overcast conditions the remaining 25%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27921
37921
47921
57921
67921
77921
87921
97822
107822
117723
127624
137624
147525
157426
167426
177426
187327
197327
207228
217228
227228
237129
247129
257129
267129
277228
287129
297129
307030
316931

Chance of precipitation in March

Any precipitation

El Castillo gets around 31 mm of rain over 12 wet days in March, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
247
346
445
545
644
743
843
942
1042
1142
1241
1341
1440
1540
1639
1738
1838
1938
2037
2137
2237
2336
2436
2535
2635
2735
2835
2935
3035
3135

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1235630
2235630
3335620
4335620
5335620
6335620
7334630
8334630
9334630
10333640
11333640
12234640
13234640
14234640
15235630
16235630
17235630
18235630
19136630
20136630
21136630
22136630
23136630
24137620
25137620
26137611
27136621
28136621
29135631
30034651
31033661

Wind in March

Winds average 11 km/h in March.

Across March, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over March. Sunrise moves from 5:58 AM to 5:40 AM, and sunset from 5:44 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:585:44
211.85:575:44
311.85:575:44
411.85:565:44
511.85:565:44
611.85:555:44
711.85:555:45
811.85:545:45
911.95:545:45
1011.95:535:45
1111.95:525:45
1211.95:525:45
1311.95:515:45
1411.95:515:45
1511.95:505:45
1611.95:505:45
1711.95:495:45
1811.95:485:45
1912.05:485:45
2012.05:475:45
2112.05:465:45
2212.05:465:45
2312.05:455:45
2412.05:455:45
2512.05:445:45
2612.05:435:45
2712.05:435:45
2812.05:425:45
2912.15:415:45
3012.15:415:45
3112.15:405:45

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.24 kWh/m².

For context, solar energy here swings from a low near 3.27 kWh/m² to a high of 5.42 kWh/m² in April across the year — March's 5.24 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in March

Hazard calendar for El Castillo

In seasonPeak

None of El Castillo's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

El Castillo sits in the Atlantic hurricane belt; the season peaks August–October.

El Castillo's rainy season runs May–November, when most of the year's rain falls.

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

Is March a good time to visit El Castillo?

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

4.9
Sightseeing
2nd-best month of the year
6.7
Beach & pool
1st-best month of the year

March is a reasonable time to visit El Castillo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for El Castillo in March

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

In March, El Castillo sees daytime highs around 30°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near El Castillo 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 69 km away) is warmest in September at about 29°C and coldest in January near 27°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
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in El Castillo 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 El Castillo peaks around March 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 19UV 14Dec 16UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec9Very high

Air quality in El Castillo 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 El Castillo is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1623 µg/m³Dec 127 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr18Moderate
May22Moderate
Jun20Moderate
Jul24Moderate
Aug19Moderate
Sep13Moderate
Oct10Good
Nov7Good
Dec7Good
Location & terrain

Where is El Castillo?

El Castillo sits at 11.0°N, 84.4°W, 0 m above sea level, in Nicaragua. The nearest listed city is San Carlos, 43 km away.

San CarlosNueva GuineaSan José

Topography around El Castillo

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

Within 3 km, the terrain around El Castillo has only modest variations in elevation — a maximum elevation change of 128 m around an average of 59 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 403 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,141 m.

The land around El Castillo is covered by trees (69%) and grassland (26%) within 3 km, trees (67%) and grassland (31%) within 16 km, and trees (60%) and grassland (28%) within 80 km.

3 km
128 m
16 km
403 m
80 km
2,141 m
treesgrasslandcroplandwater
March weather nearby: San Carlos 43 km · La Fortuna 67 km · Nueva Guinea 75 km · Quesada 77 km · San José 81 km · Monteverde 91 km · Cañas 101 km · San_Ramon_ 104 km

Nicaragua travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$3,173
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
11.3
per 100k, 2021
Road deaths
16.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 512
Religion
Roman Catholic 45%Protestant 39%none 14%other 1%

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 El Castillo (11.0189°, -84.397°, elevation 0 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).