Bayamón, Puerto Rico Weather
Dry season takes hold. Day 50 of autumn. Read this microseason across nine climate regions →
Bayamón weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 5:29 PM AST · Open-Meteo
- TodayNov 10Overcast57%0.07″89°76°—
- WednesdayNov 11Heavy Drizzle53%0.03″90°76°+1°
- ThursdayNov 12Thunderstorm57%0.02″90°76°0°
- FridayNov 13Mostly Clear33%—89°77°-1°
- SaturdayNov 14Thunderstorm69%0.01″90°78°+1°
- SundayNov 15Light Drizzle39%0.01″90°75°0°
- MondayNov 16Partly Cloudy40%—89°74°-1°
Air quality now AQI 27 · Good
AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
When the wind is in the west, the weather is at its best.
- Moonrise
- 7:41 AM
- Moonset
- 6:50 PM
- In sign
- ♐︎ Sagittarius
Dry season takes hold
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Bayamón at a glance
- Today vs. normal: Today averages 83°F (high 89°F, low 76°F), 4°F above the 79°F normal for Nov 10
- Last frost: None — no 32°F night in 1991–2020 (NOAA station 6 km away)
- Microseason: Nov 6–10
- Planting calendar: November — plant tomatoes, peppers, beans, squash; harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Bayamón
- Tue89°76°57%
- Wed90°76°53%
- Thu90°76°57%
- Fri89°77°33%
- Sat90°78°69%
- Sun90°75°39%
- Mon89°74°40%
- Tue85°75°77%
- Wed87°74°74%
- Thu89°72°71%
- Fri87°72°61%
- Sat87°71°74%
- Sun85°71°80%
- Mon85°70°67%
- Tue86°72°67%
- Wed86°72°39%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Bayamón
Interactive wind and temperature map centered on Bayamón — it loads in your browser. Open the full weather map.
Right now in the garden
Year-round growing
As of November 10, sowing here runs through the year. Freezes are uncommon, so there is no frost date to plan around; heat and rainfall set the calendar instead. This city's planting calendar for November: plant tomatoes, peppers, beans, and squash; harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Bayamón
Bayamón sits in Bayamón County, where the year’s longest day runs 13h 14m of daylight and its shortest just 11h 1m — a swing of +2h 13m between the June and December solstices.
San Juan, the state’s largest city, lies about 7 miles to the E. The nearest town Bayamón tracks is San Juan, roughly 7 miles to the E.
Air quality in Bayamón
Air quality in Bayamón’s county has trended dirtier since 2020; its cleanest year on record was 2021 (median AQI 10). See the full air-quality history for Bayamón.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| February | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| March | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| April | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| May | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| June | tomatoes, peppers, squash | tomatoes, peppers, beans, summer squash, winter squash |
| July | tomatoes, peppers, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash | tomatoes, peppers, summer squash, winter squash |
| September | tomatoes, peppers, beans, squash | summer squash, winter squash |
| October | tomatoes, peppers, beans, squash | beans, summer squash, winter squash |
| November | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| December | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
A year in weather
Bayamón peaks at about 81°F in September and bottoms near 75°F in January; September brings the heaviest rain (8.5 inches) and February the least (3.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 75° | 5.0″ | 16 |
| February | 75° | 3.3″ | 11 |
| March | 76° | 3.7″ | 11 |
| April | 78° | 5.9″ | 12 |
| May | 79° | 6.9″ | 14 |
| June | 81° | 4.5″ | 10 |
| July | 81° | 7.1″ | 15 |
| August | 81° | 7.5″ | 15 |
| September | 81° | 8.5″ | 14 |
| October | 81° | 7.6″ | 16 |
| November | 79° | 7.9″ | 18 |
| December | 76° | 5.0″ | 17 |
Regional context
Similar climates Guaynabo, PR, Sabana Seca, PR, Mucarabones, PR
Drawing on NOAA NCEI 1991-2020 normals, Bayamón's January averages 75°F and July 81°F — 6°F apart — while precipitation totals roughly 73 inches over some 169 days.
Bayamón's precipitation spreads evenly across the seasons: September peaks at 8.5 inches on 14.2 wet days, while February holds 3.3 inches over 11.3 — no season dominates Bayamón's rain calendar. It is a balanced pattern Bayamón shares with places like Guaynabo, PR, Sabana Seca, PR and Mucarabones, PR.
Bayamón rarely sees a hard freeze — its coldest month sits near 75°F — so planting spans most of the calendar. Heat peaks in September around 81°F, which confines cool-season crops to the shoulders of summer. Bayamón beds by a wall stay warmer at night.
Similar climates: Guaynabo, PR, Sabana Seca, PR, Mucarabones, PR, Pájaros, PR, Candelaria, PR.
Frequently asked
- When does it freeze in Bayamón?
- Freezes don't happen in Bayamón in a normal year — no 32°F night at the nearest NOAA station across 1991–2020, with Bayamón's coldest month near 75°F.
- What is the rainy season in Bayamón?
- Rainfall in Bayamón peaks in September near 8.5 inches, out of about 73 inches annually.
- What is the warmest month in Bayamón?
- On average September tops the year in Bayamón at about 81°F.
- What is the coldest month in Bayamón?
- The coldest stretch in Bayamón falls in January, around 75°F on average.
- When can I start a vegetable garden in Bayamón?
- Bayamón has no frost date to wait for, so sowing runs year-round; lettuce and greens do best when Bayamón's coldest month settles near 75°F.
- How many rainy days does Bayamón get?
- Bayamón averages about 169 days with measurable rain or snow each year.
- What hardiness zone is Bayamón?
- Since January in Bayamón averages 75°F, Bayamón's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Bayamón?
- Bayamón's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Bayamón?
- See this week's day-by-day rain chances for Bayamón in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Bayamón?
- Current conditions for Bayamón and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Bayamón forecast updated?
- The Bayamón forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Bayamón?
- Today's sunrise and sunset times for Bayamón are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Bayamón?
- The next few days in Bayamón's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
ZIP codes in Bayamón
- 00916
- 00934
- 00956
- 00957
- 00959
- 00960
- 00961