San Diego Weather Month-by-Month: What to Expect All Year
Explore San Diego's weather trends by month, including average temperatures, rainfall, and sunshine hours. Plan your visit with this comprehensive overview of the city's year-round mild climate.
San Diego, California, is famous for its year-round mild and pleasant weather. Known as “America’s Finest City,” San Diego offers visitors and residents a mix of warm sunshine, comfortable temperatures, and minimal rainfall throughout the year.
This page provides a month-by-month overview of San Diego's climate, highlighting key weather trends such as average high and low temperatures, precipitation, and sunshine hours. Whether you’re planning a vacation or looking to enjoy San Diego’s outdoor lifestyle, this guide will help you prepare for any time of the year.
Monthly Climate Averages in San Diego
San Diego’s weather is remarkably consistent and enjoyable, making it a top destination for outdoor activities year-round. The table below highlights the monthly climate averages, including high and low temperatures, days with precipitation, sunshine hours, and average rainfall.
| Month | Average High (°F) | Average Low (°F) | Days with Precipitation | Hours of Sunshine | Average Precipitation (in) |
|---|---|---|---|---|---|
| January | 65 | 48 | 6 | 217 | 1.53 |
| February | 76 | 65 | 1 | 255 | 0.15 |
| March | 73 | 61 | 3 | 234 | 0.57 |
| April | 69 | 54 | 4 | 236 | 1.01 |
| May | 76 | 67 | 0 | 277 | 0.02 |
| June | 75 | 65 | 0 | 293 | 0.03 |
| July | 71 | 62 | 1 | 253 | 0.07 |
| August | 69 | 59 | 2 | 261 | 0.12 |
| September | 67 | 56 | 5 | 242 | 0.78 |
| October | 66 | 53 | 7 | 262 | 1.81 |
| November | 65 | 51 | 7 | 212 | 2.27 |
| December | 65 | 49 | 7 | 216 | 1.98 |
This data offers a quick snapshot of what to expect each month, helping you plan your visit or outdoor activities accordingly. Whether you're soaking up the sun in summer or enjoying the cooler breezes of winter, San Diego’s climate ensures there's never a bad time to explore this vibrant city.
Temperature and Precipitation Trends
San Diego’s weather features a unique combination of warm, steady temperatures and minimal rainfall, making it one of the most appealing climates in the United States. High temperatures peak in February and May, reaching an average of 76°F, while lows are at their coolest in January and December, averaging 48–49°F.
Rainfall is relatively sparse, with the wettest months being November and December, when precipitation averages 2.27 and 1.98 inches, respectively. The driest months, May and June, see virtually no rain, with less than 0.05 inches combined. These trends ensure that San Diego enjoys a balance of sunshine and occasional refreshing rain, creating a pleasant environment for residents and visitors alike.
Best Times to Visit San Diego
San Diego’s pleasant weather makes it a great destination year-round, but tourist volumes can vary depending on the season. The chart above highlights the average tourist activity throughout the year, giving you an idea of when the city experiences its busiest and quietest times.
The spring months of March through May and the early summer months of June and July are particularly popular due to warm temperatures and minimal rainfall, drawing more visitors to enjoy outdoor attractions and beaches. Late summer and early fall, from August through October, tend to see slightly fewer tourists, making this a great time to visit if you prefer fewer crowds while still enjoying sunny skies.
The winter months, from November through February, are the least crowded, with cooler temperatures and occasional rain. However, San Diego still offers mild weather compared to many other destinations, making it a popular spot for winter getaways. Whether you’re looking for lively beaches or peaceful off-season exploration, San Diego’s climate ensures you’ll find a time that fits your preferences.
San Diego Weather Month-By-Month Overview
San Diego’s reputation for perfect weather is well-earned, offering sunshine-filled days and comfortable temperatures nearly every month of the year. Whether you’re visiting during the warm summer months or the cooler winter season, the city’s climate ensures plenty of opportunities to explore its stunning beaches, vibrant neighborhoods, and outdoor attractions. Use this overview as your guide to San Diego weather and start planning your trip to enjoy the city’s world-renowned climate. For more detailed insights into each month, check out our dedicated weather pages for January through December.
