Rio Grande Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Rio Grande’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Puerto Rico.
Monthly Temperature Averages
With little seasonal fluctuation, Rio Grande offers a predictable and steady climate. Average maximum daytime temperatures range from a very warm 31°C in August, the warmest time of the year, to a comfortable 28°C during cooler months like February. At night, minimum temperatures typically average around 23°C during these months.
The chart below illustrates the average maximum day and minimum night temperatures in Rio Grande by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest. August, the city’s warmest month receives 267 hours of sunshine.
The chart below shows the average temperature throughout the year:
February, the city’s coldest month, sees about 57 mm of rainfall spread over roughly 15 days. It records 231 hours of sunshine of sunshine.
Annual Temperatures in Puerto Rico Compared
The map below shows the annual temperature across Puerto Rico. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Rio Grande Temperatures Compared World Wide
Rio Grande’s average annual maximum temperature is 29°C. Let’s compare this with some popular tourist destinations:
Seville, Spain, stands out with its warm Mediterranean climate and an average annual temperature of 23°C.
In Toronto, Canada, the average annual temperature is 13°C, with snowy winters and warm summers.
The climate in San Francisco, USA, is mild, with an average annual temperature of 19°C and minimal seasonal variation.
Melbourne, Australia, has a slightly cooler climate, with an average annual temperature of 20°C.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
In Rio Grande, during the coolest month, February, you will experience 72% humidity, which is considered high. This is accompanied by an average maximum temperature of 28°C. In the warmest month, August, the humidity is 76% combined with an average maximum temperature of 31°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Rio Grande’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Rio Grande climate page.
Current temperature in Rio Grande
5 m/s
partly cloudy and small chance of slight rain
6 m/s
partly cloudy and chance of rain
6 m/s
partly cloudy and chance of rain
