San Rafael weather by month

by Posted on

San Rafael, nestled in Marin County, California, enjoys a Mediterranean climate characterized by mild, wet winters and warm, dry summers. Often called the “Canal City” due to its network of charming waterways, San Rafael is a fantastic year-round destination. But knowing what to expect weather-wise can help you plan the perfect trip or simply prepare for your daily life. This guide breaks down the San Rafael weather by month, offering insights into temperatures, rainfall, and what activities are best suited for each season.

San Rafael Weather Overview

San Rafael benefits from its location, shielded somewhat from the full force of Pacific storms by the surrounding hills, yet still enjoying the cooling influence of the ocean breezes. This results in a remarkably pleasant climate. While it rarely experiences extreme temperatures, layering is always a good idea, especially during the transitional months. The peak tourist season aligns with the warmer, drier months of summer, but San Rafael offers unique charms throughout the year.

San Rafael Weather by Month: A Detailed Look

Here’s a comprehensive look at the weather in San Rafael, month by month:

Month Avg High (°F) Avg Low (°F) Rainfall (inches) Sunshine Hours Humidity (%)
January 57 43 5.2 120 78
February 60 45 4.0 140 75
March 63 47 3.2 180 72
April 67 49 1.8 220 68
May 71 52 0.8 260 65
June 75 55 0.3 280 62
July 78 57 0.1 300 60
August 79 58 0.1 290 61
September 76 56 0.5 250 64
October 70 51 1.7 200 69
November 63 46 3.0 150 74
December 58 44 4.5 130 76

January & February: Cool and Wet

These are the wettest months in San Rafael. Expect average highs in the upper 50s and lows in the mid-40s. Rainfall is frequent, making it a good time for cozy indoor activities like visiting museums or enjoying a warm meal at one of San Rafael’s many restaurants.

March & April: Transitioning to Spring

The rain begins to taper off, and temperatures start to climb. March sees average highs in the low 60s, rising to the upper 60s in April. Wildflowers begin to bloom, making it a beautiful time for hiking and exploring the surrounding hills.

May & June: Pleasant and Sunny

Spring fully blossoms into summer. May and June offer warm, sunny days with average highs in the low to mid-70s. Humidity remains relatively low, making it ideal for outdoor activities like kayaking on the canals, biking, or picnicking.

July & August: Warmest Months

These are the warmest and driest months. Temperatures typically reach the upper 70s to near 80°F. While heat waves are possible, the coastal influence usually keeps temperatures comfortable. It’s the perfect time for exploring the bay, attending outdoor concerts, or enjoying the vibrant downtown scene.

September & October: Indian Summer

Often referred to as “Indian Summer,” these months offer some of the most pleasant weather of the year. Temperatures remain warm, averaging in the mid-70s in September and low 70s in October, with less humidity and fewer crowds.

November & December: Return of the Rain

As winter approaches, rainfall increases, and temperatures cool down. Average highs in November are in the low 60s, dropping to the upper 50s in December. While not as rainy as January and February, expect occasional showers.

What to Pack for San Rafael

Regardless of the time of year, layering is key. Here’s a general packing list:

  • Spring/Fall: Light jacket, long-sleeved shirts, comfortable walking shoes, rain jacket.

  • Summer: Shorts, t-shirts, sunscreen, hat, sunglasses, light sweater for cool evenings.

  • Winter: Warm jacket, sweater, long pants, waterproof shoes, umbrella.

Best Activities by Season

  • Spring: Hiking, biking, kayaking, exploring farmers markets.

  • Summer: Sailing, swimming, outdoor concerts, festivals.

  • Fall: Wine tasting, hiking, biking, enjoying the fall foliage.

  • Winter: Museum visits, cozy restaurants, exploring the historic downtown.

Frequently Asked Questions (FAQ)

Q: What is the rainiest month in San Rafael?
A: January is typically the rainiest month.

Q: What is the hottest month in San Rafael?
A: August is usually the hottest month.

Q: Does San Rafael get fog?
A: Yes, especially during the summer months, though it usually burns off by midday.

Q: Is San Rafael humid?
A: Humidity is generally low, especially during the summer months, but can be higher in the winter.

Q: What is the average temperature in San Rafael?
A: The average annual temperature is around 64°F (18°C).

Resources

Rate this post

Published by admin