Cayey in Spring
In spring (March, April and May), Cayey sees average daytime highs around 27°C and overnight lows near 22°C, with 198 mm of rain over about 43 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 34% of the time across spring, and the air most often feels muggy.
Spring is Cayey's 2nd-best season to visit on our travel score. Cayey 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 Cayey's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 198 mm
- 43 wet days
- Avg wind
- 15 km/h
- Travel score
- 6.1
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Cayey in Spring
Across spring, daytime highs hold fairly steady around 27°C.
A typical spring day in Cayey reaches about 27°C and drops to 22°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Cayey
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Cayey 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 | 26° / 22° | 32 | 10.8 | 11 | 6.9 |
| Feb | 26° / 21° | 27 | 9.4 | 11.4 | 7.0 |
| Mar | 26° / 22° | 40 | 10.8 | 11.9 | 6.8 |
| Apr | 27° / 22° | 59 | 13.7 | 12.4 | 6.1 |
| May | 27° / 23° | 98 | 18.2 | 12.8 | 5.3 |
| Jun | 28° / 24° | 64 | 15.9 | 13.1 | 5.2 |
| Jul | 28° / 24° | 75 | 15.5 | 13 | 5.1 |
| Aug | 29° / 24° | 96 | 18.8 | 12.6 | 4.6 |
| Sep | 28° / 24° | 143 | 21.6 | 12.1 | 4.2 |
| Oct | 28° / 24° | 122 | 21.4 | 11.6 | 4.7 |
| Nov | 27° / 23° | 91 | 17 | 11.1 | 5.5 |
| Dec | 26° / 22° | 39 | 11.6 | 10.9 | 6.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 34% of the time across spring.
Chance of precipitation in Spring
Cayey gets around 198 mm of rain over 43 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 15 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 6.4 kWh/m².
Hazard calendar for Cayey
In spring, Cayey overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Cayey sits in the Atlantic hurricane belt; the season peaks August–October.
Cayey's rainy season runs May–May, when most of the year's rain falls.
Cayey sees seasonal dust haze (July), heaviest in July.
Is spring a good time to visit Cayey?
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 Cayey for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cayey in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Cayey sees daytime highs around 27°C and nights near 22°C. Pack light clothes, rain gear and sun protection. About 43 days see rain.
Sea temperature near Cayey 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 27 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 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Cayey 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 Cayey peaks around April 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very 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 | 13 | 13 | 12 | 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 | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | 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 Cayey 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 Cayey is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.7× 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 | 9 | 14 | 24 | 25 | 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 | 9 | Good |
| May | 14 | Moderate |
| Jun | 24 | Moderate |
| Jul | 25 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 8 | Good |
| Dec | 5 | Good |
Where is Cayey?
Cayey sits at 18.1°N, 66.2°W, 397 m above sea level, in Puerto Rico. The nearest listed city is Guayama, 15 km away.
Topography around Cayey
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cayey.
Within 3 km, the terrain around Cayey has significant variations in elevation — a maximum elevation change of 462 m around an average of 482 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 892 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,308 m.
The land around Cayey is covered by trees (68%) within 3 km, trees (81%) within 16 km, and water (60%) 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 Cayey (18.1119°, -66.166°, elevation 397 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.