Bayamón in Spring
In spring (March, April and May), Bayamón sees average daytime highs around 28°C and overnight lows near 23°C, with 216 mm of rain over about 35 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 27°C in early March to 30°C by late May. The sky is clear or mostly clear about 40% of the time across spring, and the air most often feels oppressive.
Spring is Bayamón's 2nd-best season to visit on our travel score. Bayamón has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Bayamón's year-round climate.
- Avg daytime high
- 28°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 216 mm
- 35 wet days
- Avg wind
- 14 km/h
- Travel score
- 5.8
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Bayamón in Spring
Over the season highs climb from about 27°C in early March to 30°C by late May.
A typical spring day in Bayamón reaches about 28°C and drops to 23°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Bayamón
Once humidity and wind are folded in, spring brings about 21 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Bayamón weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 23° | 38 | 10 | 11 | 6.8 |
| Feb | 27° / 22° | 28 | 7.7 | 11.4 | 7.1 |
| Mar | 28° / 23° | 40 | 8.2 | 11.9 | 6.9 |
| Apr | 28° / 23° | 70 | 10.7 | 12.4 | 5.8 |
| May | 29° / 24° | 106 | 15.6 | 12.9 | 4.7 |
| Jun | 30° / 25° | 60 | 12.8 | 13.1 | 4.6 |
| Jul | 30° / 25° | 66 | 15.4 | 13 | 4.4 |
| Aug | 30° / 26° | 79 | 17.4 | 12.6 | 4.1 |
| Sep | 30° / 25° | 123 | 20.2 | 12.1 | 3.7 |
| Oct | 30° / 25° | 113 | 19.9 | 11.6 | 4.1 |
| Nov | 28° / 24° | 102 | 17.4 | 11.1 | 5.0 |
| Dec | 28° / 23° | 45 | 12 | 10.9 | 6.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 40% of the time across spring.
Chance of precipitation in Spring
Bayamón gets around 216 mm of rain over 35 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early March to 13 hours by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.3 kWh/m².
Hazard calendar for Bayamón
None of Bayamón's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Bayamón sits in the Atlantic hurricane belt; the season peaks August–October.
Bayamón sees seasonal dust haze (July), heaviest in July.
Is spring a good time to visit Bayamón?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring 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 Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Bayamón sees daytime highs around 28°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 35 days see rain.
Sea temperature near Bayamón in Spring
The nearest coast averages about 27°C across spring — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Bayamón in Spring
Clear-sky midday UV across spring averages 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 10 | 12 | 13 | 11 | 12 | 12 | 12 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Bayamón in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 5 | 7 | 7 | 8 | 14 | 23 | 24 | 20 | 15 | 15 | 8 | 5 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 5 | Good |
| Feb | 7 | Good |
| Mar | 7 | Good |
| Apr | 8 | Good |
| May | 14 | Moderate |
| Jun | 23 | Moderate |
| Jul | 24 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 8 | Good |
| Dec | 5 | Good |
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.
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.
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
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.