Caguas, Puerto Rico Weather History

Puerto Rico, United States  •  45 yrs data 📍 18.2160°N, 66.0567°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Sep
Avg 81.5°F
Min 75.1°F
Max 87.9°F
Coldest Month
❄️
Jan
Avg 75.1°F
Min 68.2°F
Max 81.9°F
Wettest Month
🌧️
Nov
133 mm
Driest Month
🏜️
Mar
51 mm
Most Humid
💧
Nov
83%
Least Humid
🌬️
Mar
75%
Highest Ever
🌡️
92.7°F
Oct 2023
Lowest Ever
🧊
62.4°F
Jan 2000
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in Caguas Across Seasons

❄️ Winter in Caguas

January is Caguas's coldest month, with average lows reaching 68.2°F.
🌡️ December to February (avg)  ·  68.7°F82.4°F

🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.

☀️ Summer in Caguas

Summer temperatures in Caguas peak in September, climbing to 87.8°F.
🌡️ July to September (avg)  ·  75°F87.3°F

🌤️ Early mornings and evenings are most comfortable during this Hot Summer season.

🌧️ Rainy Season in Caguas

Caguas sees its highest rainfall in November, receiving approximately 133 mm of precipitation.
🌧️ September to November (avg)  ·  up to 133 mm

☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ Caguas Monthly Temperature Guide

Sep is the hottest month in Caguas, with average highs reaching 87.9°F, while Jan is the coldest with lows dropping to 68.2°F.

Temperatures rise steadily from spring, peak in Sep, and gradually decline through fall into winter.

These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in Caguas

Caguas receives its highest rainfall in Nov, while humidity peaks in autumn.
🌧️ Wettest: Nov — 133 mm ☀️ Driest: Mar — 51 mm

💧 Humidity peaks at 83% in Nov · annual avg 79%

🌍 Climate Summary

Avg Annual Temp:78.6°F
Avg Annual Rainfall:1108 mm
Avg Humidity:79%
Data Period:1981 – 2025

Caguas Climate Overview

Caguas has a warm subtropical climate with warm summers and mild winters.

Temperatures peak in Sep and drop to their lowest in Jan, while rainfall is highest during autumn months.

Humidity remains high throughout the year, especially in autumn, creating warm and humid conditions.

📈 Yearly Trends

The warmest year in Caguas's recorded history was 2023 (avg: 80.8°F), while the coldest year was 1986 (avg: 76.8°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

Caguas's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 92.7°F in Oct 2023, while the lowest dropped to 62.4°F in Jan 2000.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Caguas shows noticeable variation. Rainfall varies year-to-year without a clear long-term trend.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

🏙️ Other Cities in Puerto Rico

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❓ Frequently Asked Questions

What is the hottest month in Caguas?
Based on 45 years of data (1981–2025), Sep is typically the hottest month in Caguas, Puerto Rico, with average high temperatures around 87.9°F.
What is the coldest month in Caguas?
Jan is the coldest month in Caguas, with average low temperatures around 68.2°F.
What is the rainiest month in Caguas?
Nov receives the most rainfall with approximately 133 mm, while Mar is the driest with 51 mm.
What was the highest temperature ever recorded in Caguas?
The highest recorded temperature was 92.7°F in Oct 2023. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Caguas?
The lowest recorded temperature was 62.4°F in Jan 2000.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does Caguas get?
Caguas receives the most sunlight in Apr with an average solar radiation of 5.91 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in Puerto Rico.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.

📚 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Years: 45