Arecibo receives its highest rainfall in Sep, while humidity peaks in autumn.
🌧️ Wettest:Sep — 165 mm☀️ Driest:Feb — 52 mm
💧 Humidity peaks at 81% in Nov · annual avg 78%
🌍 Climate Summary
Avg Annual Temp:80.8°F
Avg Annual Rainfall:1255 mm
Avg Humidity:78%
Data Period:1981 – 2025
Arecibo Climate Overview
Arecibo has a warm subtropical climate with warm summers and mild winters.
Temperatures peak in Sep and drop to their lowest in Mar,
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 Arecibo's recorded history was 2024
(avg: 82.6°F),
while the coldest year was 1996
(avg: 79.3°F),
based on annual average temperatures.
📊 Key Climate Trends
🌡️ Arecibo's temperature has remained relatively stable over the past decade
📊 Minimum temperatures have remained largely stable across the dataset
🌧️ Rainfall has increased noticeably in recent years compared to earlier periods
🌡️ Annual Temperature Trend
View Range:
Average annual high/low · Last 10 years · °F
Arecibo's temperatures has remained relatively stable over the past decade.
The highest recorded temperature reached
92.2°F in Oct 2024,
while the lowest dropped to
67.6°F in Jan 2000.
🌧️ Annual Precipitation
View Range:
Total annual precipitation · Last 10 years · mm/year
Annual rainfall in Arecibo shows noticeable variation. Rainfall has increased noticeably in recent years compared to earlier periods.
Based on 45 years of data (1981–2025), Sep is typically the hottest month in Arecibo, Puerto Rico, with average high temperatures around 88.8°F.
What is the coldest month in Arecibo?▼
Mar is the coldest month in Arecibo, with average low temperatures around 71.8°F.
What is the rainiest month in Arecibo?▼
Sep receives the most rainfall with approximately 165 mm, while Feb is the driest with 52 mm.
What was the highest temperature ever recorded in Arecibo?▼
The highest recorded temperature was 92.2°F in Oct 2024. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Arecibo?▼
The lowest recorded temperature was 67.6°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 Arecibo get?▼
Arecibo 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.