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.

In Arecibo temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 28°C (82°F) in January 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 January.

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:

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.