Cataño, Puerto Rico experiences average highs of 30°C (86°F) and lows of 24°C (75°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Sunshine is abundant, averaging about 11 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Cataño, Puerto Rico Weather & Climate 2026
Monthly climate averages for Cataño, Puerto Rico. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.3/10
Best: January, February, March, December
UV Index
8
High
Temperature 30°C / 24°C
Feels Like 34°C / 27°C
Rainy Days 14
Rainfall 76 mm
Sunshine 11 h
Humidity 80%
Wind Speed 19 km/h
Dew Point 23°C
Hottest Month
32°C
July
Avg Low25°C
Rain15days
Coldest Month
22°C
February
Avg High29°C
Rain10days
Driest Month
10days
January
Avg High29°C
Avg Low22°C
Windiest Month
22 km/h
July (Gusts 41)
Sea Temperature
27°C – 30°C
Warmest water: October (
30.2°C
)
Worst Time to Visit
Consider avoiding July, August, September, October due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 05:49
Daylight 13.2h
Sunset 19:03
Live conditions—
Cataño on the map · live conditions
Cataño, Puerto Rico
- Continent
- Americas
- Country
- Puerto Rico
- City
- Cataño
- Population
- 28.1K
- Elevation
- 3 m
- Coordinates
- 18.44°, -66.12°
Seasonal Breakdown
Spring
Mar–May
Avg High 30°C
Avg Low 23°C
Rain 12 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 32°C
Avg Low 25°C
Rain 14 days/mo
Autumn
Sep–Nov
Avg High 31°C
Avg Low 25°C
Rain 19 days/mo
Winter
Dec–Feb
Avg High 29°C
Avg Low 22°C
Rain 11 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 29°C / 22°C . Feb: 29°C / 22°C . Mar: 29°C / 22°C . Apr: 30°C / 23°C . May: 31°C / 24°C . Jun: 32°C / 25°C . Jul: 32°C / 25°C . Aug: 32°C / 25°C . Sep: 32°C / 25°C . Oct: 31°C / 25°C . Nov: 29°C / 24°C . Dec: 29°C / 23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 33 mm. Feb: 40 mm. Mar: 47 mm. Apr: 80 mm. May: 76 mm. Jun: 49 mm. Jul: 65 mm. Aug: 84 mm. Sep: 153 mm. Oct: 130 mm. Nov: 112 mm. Dec: 42 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 79%. Feb: 78%. Mar: 76%. Apr: 77%. May: 78%. Jun: 77%. Jul: 78%. Aug: 80%. Sep: 83%. Oct: 84%. Nov: 85%. Dec: 82%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 21 km/h . Mar: 20 km/h . Apr: 19 km/h . May: 19 km/h . Jun: 21 km/h . Jul: 22 km/h . Aug: 21 km/h . Sep: 17 km/h . Oct: 15 km/h . Nov: 17 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 11h. Mar: 11h. Apr: 11h. May: 12h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 11h. Oct: 10h. Nov: 10h. Dec: 10h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 27°C . Feb: 27°C . Mar: 27°C . Apr: 27°C . May: 28°C . Jun: 29°C . Jul: 29°C . Aug: 30°C . Sep: 30°C . Oct: 30°C . Nov: 29°C . Dec: 28°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 9. Apr: UV 9. May: UV 9. Jun: UV 9. Jul: UV 9. Aug: UV 9. Sep: UV 8. Oct: UV 8. Nov: UV 7. Dec: UV 6.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 18 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 33°C | Jul · 32°C |
| Coldest month | Jan 2025 · 22°C | Feb · 22°C |
| Wettest month | Sep 2025 · 172 mm | Sep · 153 mm |
| Windiest month | Jun 2025 · 23 km/h | Jul · 22 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Good April
Fair May
Fair June
Fair July
Poor August
Poor September
Wet October
Wet November
Fair December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 29°C / 22°C | 31°C / 24°C | 10days (33 mm) Wet | 10.3h Excellent | 79% Humid | 6.4 High | Excellent | View Details |
| February best | 29°C / 22°C | 30°C / 24°C | 10days (40 mm) Wet | 10.7h Excellent | 78% Humid | 7.4 Very High | Excellent | View Details |
| March best | 29°C / 22°C | 32°C / 24°C | 11days (47 mm) Wet | 10.9h Excellent | 76% Humid | 8.5 Very High | Good | View Details |
| April | 30°C / 23°C | 33°C / 26°C | 12days (80 mm) Wet | 11.3h Excellent | 77% Humid | 8.7 Very High | Fair | View Details |
| May | 31°C / 24°C | 35°C / 27°C | 13days (76 mm) Wet | 11.5h Excellent | 78% Humid | 8.6 Very High | Fair | View Details |
| June | 32°C / 25°C | 36°C / 29°C | 10days (49 mm) Wet | 11.9h Excellent | 77% Humid | 8.7 Very High | Fair | View Details |
| July | 32°C / 25°C | 36°C / 29°C | 15days (65 mm) Wet | 11.7h Excellent | 78% Humid | 8.6 Very High | Poor | View Details |
| August | 32°C / 25°C | 36°C / 30°C | 17days (84 mm) Wet | 11.1h Excellent | 80% Humid | 8.6 Very High | Poor | View Details |
| September | 32°C / 25°C | 37°C / 30°C | 21days (153 mm) Wet | 10.5h Excellent | 83% Humid | 8.4 Very High | Wet | View Details |
| October | 31°C / 25°C | 36°C / 29°C | 20days (130 mm) Wet | 9.8h Good | 84% Humid | 7.5 Very High | Wet | View Details |
| November | 29°C / 24°C | 33°C / 28°C | 17days (112 mm) Wet | 9.6h Good | 85% Humid | 6.5 High | Fair | View Details |
| December best | 29°C / 23°C | 31°C / 26°C | 12days (42 mm) Wet | 10.1h Excellent | 82% Humid | 6.2 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Cataño are January, February, March, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Cataño, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Cataño is July, with average daytime highs of 32°C (89°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Cataño is February, with average overnight lows of 22°C (71°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Cataño is September, averaging 153mm of precipitation across 21 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Cataño runs through September, October, August, November, with the heaviest rainfall in September. Based on 10-year averages for Cataño.
Cataño receives approximately 129 sunshine hours per year. The sunniest month is June with around 12 hours. Based on climate data for Cataño.
The least favorable months to visit Cataño are July, August, September, October, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, March, December instead.
The annual average UV index in Cataño is 8, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Cataño is 80%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 28°C (82°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Cataño are 19 km/h (12 mph). The windiest month is July with peak winds reaching 22 km/h (14 mph) (gusts up to 41 km/h / 26 mph).
Cataño averages 2 clear-sky days per month with overall cloud cover around 50%. The clearest skies occur in December.
The annual average dew point in Cataño is 23°C (73°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Cataño has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Cataño ranges from 27°C (81°F) to 34°C (93°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Cataño, with a climate score of 4.6/10. Consider visiting during January, February, March, December instead for better conditions.
For June in Cataño, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 32°C (89°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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