Bayamón weather in October

In October, Bayamón sees average daytime highs of 30°C and overnight lows near 25°C, with 113 mm of rain across 19.9 wet days and about 11.6 hours of daylight. It is the 5th-warmest and 2nd-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 31% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 18 min by month's end. Set against the rest of the year, October is Bayamón's 9th-clearest and 12th-windiest month. For the whole year in context, see Bayamón's year-round climate.

Daytime high
30°
5th warmest
Overnight low
25°
8th coldest
Rainfall
113 mm
19.9 wet days
Daylight
11 h 36 min
6:22 AM – 5:57 PM
Cloud cover
59%
9th clearest
Wind
11 km/h
12th windiest
Solar energy
5.2 kWh/m²
Travel score
4.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical October day in Bayamón reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How October really feels in Bayamón

Once humidity and wind are folded in, October 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 October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Bayamón weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 2nd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 20% of October, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24456
34456
44555
54456
64555
74555
84654
94654
104753
114852
124852
134852
144951
155050
165149
175248
185347
195446
205545
215644
225743
235842
245941
255941
265941
275941
285941
295941
305941
315941

Chance of precipitation in October

Any precipitation

Bayamón gets around 113 mm of rain over 19.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 65% and peaks near 68% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
167
267
367
468
568
668
768
868
968
1068
1168
1267
1367
1466
1566
1665
1764
1863
1962
2062
2161
2261
2361
2461
2561
2661
2762
2862
2962
3063
3163

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
105743
205842
305941
405941
506040
606139
706238
806238
906337
1006436
1106436
1206535
1306634
1406634
1506733
1606733
1706832
1806832
1906931
2007030
2107030
2207129
2307228
2407228
2507327
2617326
2717425
2817524
2917722
3017821
3117920

Wind in October

Winds average 11 km/h in October, the calmest month.

Across October, daily wind ranges from about 11 km/h on the calmest days to 12 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
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over October. Sunrise moves from 6:19 AM to 6:28 AM, and sunset from 6:09 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:196:09
211.86:196:08
311.86:196:07
411.86:196:06
511.86:196:05
611.76:206:04
711.76:206:04
811.76:206:03
911.76:206:02
1011.76:216:01
1111.76:216:01
1211.66:216:00
1311.66:225:59
1411.66:225:58
1511.66:225:58
1611.66:225:57
1711.66:235:56
1811.56:235:56
1911.56:235:55
2011.56:245:54
2111.56:245:54
2211.56:245:53
2311.56:255:52
2411.46:255:52
2511.46:265:51
2611.46:265:51
2711.46:265:50
2811.46:275:50
2911.46:275:49
3011.36:285:49
3111.36:285:48

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.2 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 — October's 5.2 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in October

Hazard calendar for Bayamón

In seasonPeak

In October, Bayamón sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

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 October a good time to visit Bayamón?

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

4.1
Sightseeing
10th-best month of the year
5.4
Beach & pool
11th-best month of the year

October is a reasonable time to visit Bayamón for sightseeing.

What to pack for Bayamón in October

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

In October, Bayamón sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Bayamón in October

The nearest coast averages about 29°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).