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Imperial Beach (CA) Weather and Climate: A Comprehensive Guide

Imperial Beach has pretty similar weather over the course of the year. The city sits in an arid zone with minimal moisture. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

With minimal seasonal shifts, Imperial Beach experiences a constant climate year-round. Average daytime temperatures reach a comfortable 25°C in September. In January, the coolest month of the year, temperatures drop to a pleasant 19°C.

At night, you can expect cooler temperatures, with averages dropping to around 8°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Imperial Beach is known for its low rainfall, with yearly precipitation amounts around 202 mm. Imperial Beach can be quite wet during December, receiving approximately 53 mm of precipitation over 7 rainy days.

In contrast June, experiences much drier conditions, with 0.2 mm of rainfall, spread across 0 rainy days. For more details, please visit our Imperial Beach Precipitation page.

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

Sunshine over the year

Imperial Beach experiences moderate variation in sunshine hours across the seasons. With 10.4 hours daily sunshine in July, it dips to 7.3 hours in January, offering a balanced mix of sunny and overcast days. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Tijuana, Mexico (9 KM, 5 Miles).

Daily hours of sunshine

Data from: Tijuana, Mexico (9 KM, 5 Miles).

Forecast for Imperial Beach (CA)

Fri   Dec 27
17°C | 8°C
SE 2 m/s
0.2 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

Sat   Dec 28
17°C | 11°C
W 3 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 29
17°C | 9°C
W 2 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Imperial Beach in the United States of America

During the months of April, May, June, July, August, September, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Imperial Beach?
    September has an average maximum temperature of 25°C and is the warmest month of the year.
  • Which is the coldest month in Imperial Beach?
    The coldest month is December with an average maximum temperature of 19°C.
  • Which is the wettest month in Imperial Beach?
    December tops the wettest month list with 53 mm of rainfall.
  • Which is the driest month in Imperial Beach?
    June is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Imperial Beach?
    July is the sunniest month with an average of 312 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.