ClimateForecastNovemberDecember >>

Rio Grande Climate by Month

Rio Grande has a steady warm climate throughout the year. It also experiences much rainfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The temperature in Rio Grande remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures reach a very warm 31°C in August. In February, the coolest month of the year, temperatures drop to a comfortable 28°C. At night, expect cooler temperatures, averaging 23°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Rio Grande has a relatively rainy climate with high precipitation levels, averaging 1300 mm of rainfall annually. Rio Grande can be quite wet during September, receiving approximately 164 mm of precipitation over 18 rainy days. In contrast February, experiences much drier conditions, with 57 mm of rainfall, spread across 15 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Rio Grande experiences moderate variation in sunshine hours across the seasons. With 9.5 hours daily sunshine in March, it dips to 6.8 hours in November, offering a balanced mix of sunny and overcast days.

Monthly hours of sunshine

Data from: San Juan, Puerto Rico (18 KM, 11 Miles).

Daily hours of sunshine

Data from: San Juan, Puerto Rico (18 KM, 11 Miles).

Average water temperature

The mean water temperature over the year in Rio Grande ranges from 26°C in January to 29°C in August.

Water temperature over the year

Data from: San Juan, Puerto Rico (18 KM, 11 Miles).

The best time of year to visit Rio Grande in Puerto Rico

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Rio Grande?
    Most rainfall (rainy season) is seen in September and October.
  • Which is the hottest month in Rio Grande?
    August has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Rio Grande?
    The coolest month is February with an average maximum temperature of 28°C.
  • Which is the wettest month in Rio Grande?
    September tops the wettest month list with 164 mm of rainfall.
  • Which is the driest month in Rio Grande?
    February is the driest month with 57 mm of precipitation.
  • Which is the sunniest month in Rio Grande?
    March is the sunniest month with an average of 284 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Rio Grande

    Thu   Nov 21
    30°C | 24°C
    E 14 km/h
    1.5 mm
    partly cloudy and small chance of rain

    partly cloudy and small chance of rain

    Fri   Nov 22
    31°C | 24°C
    SE 11 km/h
    2 mm
    partly cloudy and rain

    partly cloudy and rain

    Sat   Nov 23
    30°C | 25°C
    E 11 km/h
    7.5 mm
    broken clouds and thunder

    broken clouds and thunder