Arecibo Temperature by Month
The average annual maximum temperature in Arecibo, North Puerto Rico, Puerto Rico is 30°C (86°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Arecibo compares to cities worldwide.
Arecibo Monthly Temperatures
In Arecibo temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 28°C (82°F) in February to a very warm 31°C (88°F) in August. Nighttime lows range from 25°C (77°F) in August to 22°C (72°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Arecibo by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Arecibo Temperatures: 1976-2026
Browse day-by-day temperature records for Arecibo spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Arecibo vs Puerto Rico
The map below shows the annual temperature across Puerto Rico. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
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Arecibo vs World: Temperature Compared
Arecibo's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Arecibo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Arecibo climate page.
