Bayamón weather in March

In March, Bayamón sees average daytime highs of 28°C and overnight lows near 23°C, with 40 mm of rain across 8.2 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 10th-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 52% 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 Bayamón's 4th-clearest and 7th-windiest month. For the whole year in context, see Bayamón's year-round climate.

Daytime high
28°
9th warmest
Overnight low
23°
3rd coldest
Rainfall
40 mm
8.2 wet days
Daylight
11 h 54 min
6:38 AM – 6:30 PM
Cloud cover
42%
4th clearest
Wind
14 km/h
7th windiest
Solar energy
6.01 kWh/m²
Travel score
6.9
out of 10

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 Bayamón reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°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
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182823
192823
202823
212823
222823
232823
242823
252823
262823
272823
282823
292823
302823
312823

How March really feels in Bayamón

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.

Bayamón weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 23°3810116.8
Feb27° / 22°287.711.47.1
Mar28° / 23°408.211.96.9
Apr28° / 23°7010.712.45.8
May29° / 24°10615.612.94.7
Jun30° / 25°6012.813.14.6
Jul30° / 25°6615.4134.4
Aug30° / 26°7917.412.64.1
Sep30° / 25°12320.212.13.7
Oct30° / 25°11319.911.64.1
Nov28° / 24°10217.411.15.0
Dec28° / 23°451210.96.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 28% of March, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28218
38119
48119
58020
68020
78119
88020
98020
108020
118119
128119
138119
148119
158218
168218
178218
188218
198218
208218
218119
228119
238119
248119
258020
268020
277921
287822
297822
307822
317822

Chance of precipitation in March

Any precipitation

Bayamón gets around 40 mm of rain over 8.2 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 26% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
323
423
523
623
723
823
923
1023
1123
1223
1323
1423
1523
1623
1724
1824
1925
2026
2127
2228
2329
2430
2531
2632
2732
2833
2933
3033
3133

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11137313
21137313
32147113
42147113
52147113
62147113
72147113
82147113
92147113
102147113
112147014
122137114
131137214
141137115
151127215
161127116
171117117
181107118
191107019
20197020
21196921
22096922
23086824
24086725
25086626
26086527
27086329
28086230
29086032
30085933
31085834

Wind in March

Winds average 14 km/h in March.

Across March, daily wind ranges from about 14 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
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light 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 6:50 AM to 6:25 AM, and sunset from 6:26 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:506:26
211.66:496:26
311.66:486:27
411.76:476:27
511.76:476:27
611.76:466:28
711.76:456:28
811.76:456:28
911.76:446:29
1011.86:436:29
1111.86:426:29
1211.86:416:29
1311.86:416:30
1411.86:406:30
1511.96:396:30
1611.96:386:30
1711.96:376:31
1811.96:376:31
1911.96:366:31
2011.96:356:31
2112.06:346:32
2212.06:336:32
2312.06:326:32
2412.06:316:32
2512.06:316:32
2612.06:306:33
2712.16:296:33
2812.16:286:33
2912.16:276:33
3012.16:266:34
3112.16:256:34

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 4.34 kWh/m² to a high of 6.55 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
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in March

Hazard calendar for Bayamón

In seasonPeak

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

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

Bayamón 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 Bayamón?

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

6.9
Sightseeing
2nd-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Bayamón in March

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

In March, Bayamón sees daytime highs around 28°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

Sea temperature near Bayamón 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 25 km away) is warmest in September at about 29°C and coldest in February 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
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Bayamón 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 Bayamón peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 13UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Bayamón 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 Bayamón is worst in July — around 24 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1324 µg/m³Jan 15 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb7Good
Mar7Good
Apr8Good
May14Moderate
Jun23Moderate
Jul24Moderate
Aug20Moderate
Sep15Moderate
Oct15Moderate
Nov8Good
Dec5Good
Location & terrain

Where is Bayamón?

Bayamón sits at 18.4°N, 66.2°W, 16 m above sea level, in Puerto Rico. The nearest listed city is Candelaria, 6.0 km away.

Trujillo AltoCarolinaCaguas

Topography around Bayamón

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

Within 3 km, the terrain around Bayamón has only modest variations in elevation — a maximum elevation change of 102 m around an average of 23 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 570 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,308 m.

The land around Bayamón is covered by artificial surfaces (68%) and trees (23%) within 3 km, trees (44%), water (26%) and artificial surfaces (24%) within 16 km, and water (59%) and trees (32%) within 80 km.

3 km
102 m
16 km
570 m
80 km
1,308 m
treesgrasslandartificial surfacesbare terrainwaterwetland
March weather nearby: Candelaria 6.0 km · Cataño 6.0 km · Levittown 6.0 km · Guaynabo 7.0 km · San Juan 9.0 km · Trujillo Alto 16 km · Carolina 21 km · Caguas 22 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 Bayamón (18.3986°, -66.1557°, elevation 16 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).