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

Grover Beach has pretty similar weather over the course of the year. It maintains fairly dry conditions year-round. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

With minimal seasonal shifts, Grover Beach experiences a constant climate year-round. Average maximum daytime temperatures range from a comfortable 23°C in September, the warmest time of the year, to a moderate 18°C during cooler months like December.

At night, temperatures typically drop to an average of around 6°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Grover Beach has a relatively dry climate with low precipitation, averaging 297 mm of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate rainfall, averaging 69 mm of precipitation, recorded across 8 rainy days. In contrast, the drier season, August brings less rainfall, with 0.2 mm over 0 rainy days. For more details, please visit our Grover Beach Precipitation page.

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

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Grover Beach. While July receives considerable daily sunshine with up to 11.7 hours, January marks the darkest time of the year, where sunshine is scarce with only 6.9 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Paso Robles, the United States of America (56 KM, 35 Miles).

Daily hours of sunshine

Data from: Paso Robles, the United States of America (56 KM, 35 Miles).

Forecast for Grover Beach (CA)

Mon   Dec 23
18°C | 10°C
NW 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Tue   Dec 24
17°C | 9°C
NW 5 m/s
5 mm
partly cloudy and rain

partly cloudy and rain

Wed   Dec 25
19°C | 8°C
NW 3 m/s
broken clouds and no rain

broken clouds and no rain

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

During the months of 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:
  • What is the temperature like year round in Grover Beach?
    It has mild temperatures all year round ranging between 17°C and 22°C.
  • Does Grover Beach have a dry season?
    Yes, the months of May, June, July, August, September and October are very dry.
  • Which is the warmest month in Grover Beach?
    September has an average maximum temperature of 23°C and is the warmest month of the year.
  • Which is the coldest month in Grover Beach?
    The coldest month is December with an average maximum temperature of 18°C.
  • Which is the wettest month in Grover Beach?
    December tops the wettest month list with 69 mm of rainfall.
  • Which is the driest month in Grover Beach?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Grover Beach?
    July is the sunniest month with an average of 352 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.