AI-generatedBayamón at a glance
- Best time
- Dec – Apr
- Warmest month
- Aug · 32°
- Warmest sea
- Sep · 29.1°
- Sunshine a year
- 2,840 h
- Rain a year
- 911 mm
- Climate
- Tropical
- Time zone
- UTC−4
- Elevation
- 16 m
Climate in Bayamón
Bayamón has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. August is the warmest month with average highs of 32 °C, while January is the coolest at 28 °C. With around 2,840 hours of sunshine a year, Bayamón is sunny; June is the sunniest month with 8.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: December – April
October is the peak of the hurricane season
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 26°
- Midday, 13:00: about 30°
- Afternoon, 16:00: about 30°
- Evening, 20:00: about 27°
- Night, 23:00: about 26°
06:1818:03
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:04–06:47 · evening 17:34–18:16
- Blue hour
- Morning 05:56–06:04 · evening 18:16–18:25
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Bayamón in October?
In October, Bayamón is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 20 days, totalling 123 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Bayamón.
More details for October
- Daylight
- 11 h 45 min06:18 – 18:03
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 21 days30 °C or moreAll months
- Time zone
- UTC−4America/Puerto_Rico
How the score comes together
- Temperatureweight 50 %58 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Sea temperature in Bayamón
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 28.6 – 29.6 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Bayamón ranges from 26.3 °C in February to 29.1 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea warms up slowly: it is warmest in September, while the air already peaks in August. The sea temperature varies from year to year: in September, eight out of ten years were between 28.7 and 29.7 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 26.6° | 26.0° | 27.1° | warm |
| FebruaryFeb | 26.3° | 25.7° | 26.9° | warm |
| MarchMar | 26.3° | 25.6° | 26.8° | warm |
| AprilApr | 26.7° | 26.0° | 27.3° | warm |
| MayMay | 27.3° | 26.6° | 28.1° | warm |
| JuneJun | 28.1° | 27.5° | 28.5° | warm |
| JulyJul | 28.3° | 27.9° | 28.9° | warm |
| AugustAug | 28.8° | 28.4° | 29.4° | warm |
| SeptemberSep | 29.1° | 28.7° | 29.7° | very warm |
| OctoberOct | 29.1° | 28.6° | 29.6° | very warm |
| NovemberNov | 28.5° | 28.0° | 28.9° | warm |
| DecemberDec | 27.4° | 26.8° | 28.0° | warm |
Sunshine hours in Bayamón
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.0 of 11.8 hours of daylight in Bayamón, 59 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Bayamón
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 10 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in May (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 15 min
- Light brown skin
- about 25 min
- Olive skin
- about 30 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Bayamón: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Bayamón has about 20 rainy days with 123 mm of rain in total.
Wind and clouds in Bayamón
How breezy and how cloudy Bayamón is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Bayamón typically peaks at 16 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Jan – Mar, Jun – Aug.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 59 % of the sky over Bayamón: variable cloud, with about 7.0 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Bayamón
How often the day gets hot in Bayamón (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Bayamón has about 21 hot days, with an average daytime high of 30 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Bayamón
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Warm 20–24°
- Hot 24° and more
- muggy month (10+ muggy days)
HotOctober: nights around 24°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in February (21°), the warmest in August (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) on about 355 days a year, mostly all year round.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 76 | 28° | 22° | 26.6° | 7.6 h | 10 | 39 |
| FebruaryFeb | 76 | 29° | 21° | 26.3° | 7.6 h | 9 | 30 |
| MarchMar | 72 | 29° | 22° | 26.3° | 8.0 h | 9 | 42 |
| AprilApr | 64 | 30° | 22° | 26.7° | 8.4 h | 11 | 76 |
| MayMay | 51 | 30° | 24° | 27.3° | 8.0 h | 15 | 103 |
| JuneJun | 53 | 31° | 24° | 28.1° | 8.6 h | 13 | 62 |
| JulyJul | 46 | 31° | 25° | 28.3° | 8.6 h | 16 | 68 |
| AugustAug | 39 | 32° | 25° | 28.8° | 8.1 h | 18 | 86 |
| SeptemberSep | 38 | 31° | 25° | 29.1° | 7.4 h | 21 | 131 |
| OctoberOct | 42 | 30° | 24° | 29.1° | 7.0 h | 20 | 123 |
| NovemberNov | 51 | 29° | 23° | 28.5° | 6.7 h | 18 | 105 |
| DecemberDec | 69 | 28° | 22° | 27.4° | 7.4 h | 12 | 47 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
18.40° N, 66.16° W · 16 m · America/Puerto_Rico
Best time to visit Bayamón
The best time to visit Bayamón is from December to April. For a beach holiday with the sea above 21 °C, go from January to April. For sightseeing, day trips and hiking, conditions are most comfortable in January. Rain is most frequent from May to December; the wettest month is September with 131 mm.
Bayamón through the seasons
How the weather changes over the seasons, with averages for each.
Bayamón in the dry season
Jan – Apr
Good
- 28–30 °C by day
- Sea 27 °C
- 8 h of sun a day
- 39 rainy days in all
Bayamón in the rainy season
May – Dec
Fair
- 28–32 °C by day
- Sea 28 °C
- 8 h of sun a day
- 133 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Bayamón for you.
Your best months: December – February
Based on the climate averages; tap a month to see its details.
Compare two months in Bayamón
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in Bayamón: score 76 against 42. In January, days are 2 °C cooler than in October. The sea is 2 °C cooler in January. January has 10 fewer rainy days. The sun shines an hour longer a day in January.
| Month | October | January |
|---|---|---|
| Weather score | 42 | 76better |
| Day high | 30° | 28° |
| Night low | 24° | 22° |
| Sea | 29.1° | 26.6° |
| Sunshine | 7.0 h | 7.6 hbetter |
| Rainy days | 20 | 10better |
| Rainfall | 123 mm | 39 mmbetter |
| Muggy days | 31 | 30better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Jan – Apr
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jan
15–28 °C and not too much rain
Rainy months
May – Dec
12 or more rainy days
Bayamón month by month
The typical weather for every month at a glance.
76January28° · Sea 27° · 8 h
In January, Bayamón is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 26.6 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 39 mm in total. The air is often humid and muggy. All in all, January is a good month for a holiday in Bayamón.
Bayamón in January76February29° · Sea 26° · 8 h
In February, Bayamón is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sea averages 26.3 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 30 mm. The air is often humid and muggy. All in all, February is a good month for a holiday in Bayamón.
Bayamón in February72March29° · Sea 26° · 8 h
In March, Bayamón is hot: daytime highs average 29 °C, and even at night it stays warm at around 22 °C. The sea averages 26.3 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 42 mm. On about 11 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Bayamón.
Bayamón in March64April30° · Sea 27° · 8 h
In April, Bayamón is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 26.7 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 76 mm in total. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Bayamón.
Bayamón in April51May30° · Sea 27° · 8 h
In May, Bayamón is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 27.3 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 15 days, totalling 103 mm. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Bayamón.
Bayamón in May53June31° · Sea 28° · 9 h
In June, Bayamón is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.1 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. Rain is frequent, with about 13 rainy days and 62 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Bayamón.
Bayamón in June46July31° · Sea 28° · 9 h
In July, Bayamón is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.3 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. It is the rainy season: rain falls on about 16 days, totalling 68 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Bayamón.
Bayamón in July39August32° · Sea 29° · 8 h
In August, Bayamón is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.8 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It is the rainy season: rain falls on about 18 days, totalling 86 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Bayamón.
Bayamón in August38September31° · Sea 29° · 7 h
In September, Bayamón is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 21 days, totalling 131 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Bayamón.
Bayamón in September42October30° · Sea 29° · 7 h
In October, Bayamón is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sea averages 29.1 °C – almost as warm as a bath. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 20 days, totalling 123 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Bayamón.
Bayamón in October51November29° · Sea 29° · 7 h
In November, Bayamón is hot: daytime highs average 29 °C, and even at night it stays warm at around 23 °C. The sea averages 28.5 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 18 days, totalling 105 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a so-so month for a holiday in Bayamón.
Bayamón in November69December28° · Sea 27° · 7 h
In December, Bayamón is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 47 mm in total. The air is often humid and muggy. All in all, December is a good month for a holiday in Bayamón.
Bayamón in DecemberBayamón compared
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Bayamón vs. San Juan
In October the holiday weather in Bayamón and San Juan is about equally good (score 42 vs. 41). During the day San Juan is 1 °C warmer than Bayamón. The sea is about equally warm.
| in October | Bayamón | San Juan |
|---|---|---|
| Holiday score | 42 | 41 |
| Daytime high | 30° | 31° |
| Sea | 29° | 29° |
| Sunshine | 7 h | 7 h |
| Rainy days | 20 | 20 |
| Best time | Dec – Apr | Dec – Apr |
Through the year
Puerto Rico in October: the best places
In October, Bayamón ranks 1 of 2 destinations in this country.
- BayamónThis page30°29°42
- 2San Juan31°29°41
Planning a trip to Bayamón
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Bayamón in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Bayamón has its best school-holiday weather during the Christmas holidays (score 73) and its weakest during the summer holidays (score 41).
- 66
Easter holidays
Mar – Apr
Good
- 30 °C by day
- Sea 27 °C
- 8.3 h of sun a day
- 11 rainy days a month
Good for: Beach & swimming
- 51
May half-term
May – Jun
Fair
- 31 °C by day
- Sea 27 °C
- 8.1 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
- 41
Summer holidays
Jul – Aug
Fair
- 31 °C by day
- Sea 29 °C
- 8.3 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain, Storm season
- 42
October half-term
Oct
Fair
- 30 °C by day
- Sea 29 °C
- 7.0 h of sun a day
- 20 rainy days a month
Keep in mind: Frequent rain, Storm season
- 73
Christmas holidays
Dec – Jan
GoodBest holidays
- 28 °C by day
- Sea 27 °C
- 7.5 h of sun a day
- 11 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 8 h 40 min
- Distance
- 6,740 km
- Time zone
- UTC−4
- Jet lag
- About 3 days (5 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Storm season
Bayamón lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM); not a forecast.
Frequently asked questions about Bayamón
When is the best time to visit Bayamón?
The best time to visit Bayamón is from December to April. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Bayamón?
The sea temperature in Bayamón ranges from 26.3 °C in February to 29.1 °C in September. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Bayamón in October?
Yes. In October the sea averages 29.1 °C – almost as warm as a bath.
What is the warmest month in Bayamón?
August is the warmest month, with average highs of 32 °C and nights around 25 °C. January is the coolest month at 28 °C.
When does it rain most in Bayamón?
Rain is most frequent from May to December; the wettest month is September with 131 mm. The driest month is February with 30 mm.
How many hours of sunshine does Bayamón get?
Bayamón gets around 2,840 hours of sunshine a year. The sunniest month is June with 8.6 hours a day; in November there are 6.7 hours a day.
What time zone is Bayamón in?
Bayamón uses the time zone America/Puerto_Rico, at UTC−4 all year.
How long is the flight from London to Bayamón?
A nonstop flight from London to Bayamón takes about 8 h 40 min, for a straight-line distance of about 6,740 km.
When is hurricane season in Bayamón?
Bayamón lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Bayamón?
Bayamón has its best school-holiday weather during the Christmas holidays (score 73) and its weakest during the summer holidays (score 41). Holiday ratings (0–100): Easter holidays 66, May half-term 51, Summer holidays 41, October half-term 42, Christmas holidays 73.
Near Bayamón
Other destinations close by.
Places with a climate like Bayamón
Destinations whose weather through the year is closest to Bayamón's – good alternatives.