Arecibo weather in March

In March, Arecibo sees average daytime highs of 27°C and overnight lows near 22°C, with 59 mm of rain across 10 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 45% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Arecibo's 4th-clearest and 7th-windiest month. For the whole year in context, see Arecibo's year-round climate.

Daytime high
27°
9th warmest
Overnight low
22°
2nd coldest
Rainfall
59 mm
10 wet days
Daylight
11 h 54 min
6:40 AM – 6:33 PM
Cloud cover
44%
4th clearest
Wind
14 km/h
7th windiest
Solar energy
6.01 kWh/m²
Travel score
6.7
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical March day in Arecibo reaches about 27°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, March runs on par with February and on par with April.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102722
112722
122722
132722
142722
152722
162722
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

How March really feels in Arecibo

Once humidity and wind are folded in, March averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Arecibo weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°419.5117.0
Feb27° / 22°368.111.47.0
Mar27° / 22°591011.96.7
Apr28° / 22°10713.712.45.8
May29° / 24°16518.312.94.5
Jun30° / 24°9213.813.14.6
Jul30° / 25°7914.9134.5
Aug30° / 25°10119.612.63.9
Sep30° / 25°15422.312.13.6
Oct29° / 24°13821.411.64.0
Nov28° / 23°11317.511.15.2
Dec27° / 23°4811.410.96.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28317
38218
48218
58119
68119
78119
88020
98119
108119
118119
128119
138020
148119
158119
168020
178020
187921
197921
207921
217822
227723
237723
247624
257624
267525
277525
287525
297525
307426
317525

Chance of precipitation in March

Any precipitation

Arecibo gets around 59 mm of rain over 10 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 32% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
128
228
328
427
527
627
727
827
928
1028
1128
1228
1329
1429
1529
1630
1731
1831
1932
2033
2134
2235
2337
2438
2539
2640
2741
2841
2942
3042
3142

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1213769
2213769
3214768
4214768
5215758
6215758
7215758
8215758
9215758
10215758
11215758
12215758
13115759
14114769
151147510
161147510
171137511
181137412
190127513
200127414
210117316
220117217
230107218
240107020
250106921
260106723
27096724
28096526
29096328
30096229
31096031

Wind in March

Winds average 14 km/h in March.

Across March, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 36 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 30 minutes over March. Sunrise moves from 6:52 AM to 6:28 AM, and sunset from 6:28 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:526:28
211.66:516:29
311.66:506:29
411.76:506:29
511.76:496:30
611.76:486:30
711.76:486:30
811.76:476:30
911.76:466:31
1011.86:456:31
1111.86:446:31
1211.86:446:32
1311.86:436:32
1411.86:426:32
1511.96:416:32
1611.96:406:33
1711.96:406:33
1811.96:396:33
1911.96:386:33
2011.96:376:34
2112.06:366:34
2212.06:356:34
2312.06:356:34
2412.06:346:34
2512.06:336:35
2612.06:326:35
2712.16:316:35
2812.16:306:35
2912.16:296:36
3012.16:296:36
3112.16:286:36

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.01 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 6.53 kWh/m² in June across the year — March's 6.01 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
136.0Bright
146.0Bright
156.0Intense
166.0Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in March

Hazard calendar for Arecibo

In seasonPeak

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

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

Arecibo sees seasonal dust haze (July), heaviest in July.

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

Is March a good time to visit Arecibo?

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

6.7
Sightseeing
3rd-best month of the year
6.9
Beach & pool
3rd-best month of the year

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

What to pack for Arecibo in March

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

In March, Arecibo sees daytime highs around 27°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

Sea temperature near Arecibo in March

The nearest coast averages about 26°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 19 km away) is warmest in September at about 29°C and coldest in March near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Arecibo in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arecibo peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 12UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Arecibo 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 Arecibo is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.8× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1324 µg/m³Jan 105 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr8Good
May14Moderate
Jun23Moderate
Jul24Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov7Good
Dec5Good
Location & terrain

Where is Arecibo?

Arecibo sits at 18.5°N, 66.7°W, 7 m above sea level, in Puerto Rico. The nearest listed city is Barceloneta, 19 km away.

BarcelonetaManatíVega BajaAguadillaYaucoPonceMayagüezCandelaria

Topography around Arecibo

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

Within 3 km, the terrain around Arecibo has only modest variations in elevation — a maximum elevation change of 80 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 408 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,307 m.

The land around Arecibo is covered by water (44%) and trees (20%) within 3 km, water (45%) and trees (35%) within 16 km, and water (55%) and trees (35%) within 80 km.

3 km
80 m
16 km
408 m
80 km
1,307 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
March weather nearby: Barceloneta 19 km · Manatí 24 km · Vega Baja 35 km · Aguadilla 47 km · Yauco 51 km · Ponce 52 km · Mayagüez 54 km · Candelaria 54 km

Puerto Rico travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 78% of US
price level, 2025
GDP per capita
$40,620
2025
Happiness
7.0 / 10
World Happiness, 2015
Safe drinking water
99%
of population, 2024
Homicide rate
14.6
per 100k, 2023
Income group
High
World Bank
Religion
Roman Catholic 56%Protestant 33%none 7%other 2%

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 Arecibo (18.4724°, -66.7157°, elevation 7 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).