Temperature Rainfall Full climate overview

Adjuntas Temperature by Month

Adjuntas in Central Puerto Rico, Puerto Rico enjoys a stable climate, with daytime temperatures staying close to 26°C (79°F) throughout the year. Explore the full monthly breakdown below.

Adjuntas Monthly Temperatures

In Adjuntas temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 25°C (77°F) in January to a comfortable 28°C (82°F) in August. Nighttime lows range from 19°C (66°F) in August to 16°C (61°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Adjuntas by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.

The chart below shows the average temperature throughout the year:

Daily Historical Temperatures

Average high and low temperatures for each day of the month based on long-term records. 48-year average (1976-2025)

Average temperatures in July

Historical Adjuntas Temperatures: 1976-2026

Browse day-by-day temperature records for Adjuntas spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.

Temperature: Adjuntas 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.

Avg day temp (°C)

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Adjuntas vs World: Temperature Compared

Adjuntas's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

How are these Temperatures Measured?

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.

Temperature and Altitude

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 Adjuntas's weather, including monthly rainfall, sunshine hours, and humidity, visit our Adjuntas climate page.