ClimateForecastDecemberJanuary >>

San Sebastian Climate by Month

The weather in San Sebastian is characterized by a steady average temperature throughout the year. It also experiences much rainfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

In San Sebastian temperatures are generally consistent throughout the year. Average daytime temperatures reach a very warm 32°C in July. In February, the coolest month of the year, temperatures drop to a comfortable 29°C. At night, expect cooler temperatures, averaging 22°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

San Sebastian experiences significant rainfall throughout the year, averaging 1086 mm of precipitation annually. San Sebastian can be quite wet during September, receiving approximately 158 mm of precipitation over 17 rainy days.

In contrast January, experiences much drier conditions, with 34 mm of rainfall, spread across 19 rainy days.

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

The best time of year to visit San Sebastian in Puerto Rico

The best time to visit is during the drier months: January, February and December.

Other facts from our historical weather data:
  • Which is the hottest month in San Sebastian?
    July has an average maximum temperature of 32°C and is the hottest month of the year.
  • Which is the coolest month in San Sebastian?
    The coolest month is February with an average maximum temperature of 29°C.
  • Which is the wettest month in San Sebastian?
    September tops the wettest month list with 158 mm of rainfall.
  • Which is the driest month in San Sebastian?
    January is the driest month with 34 mm of precipitation.

  • 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 San Sebastian

    Wed   Dec 11
    30°C | 21°C
    E 18 km/h
    0.9 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Thu   Dec 12
    29°C | 20°C
    NE 18 km/h
    almost clear and no rain

    almost clear and no rain

    Fri   Dec 13
    27°C | 20°C
    NE 18 km/h
    3.7 mm
    broken clouds and rain

    broken clouds and rain