We know the question on your mind — when will it get hot? Thanks to the National Oceanic and Atmospheric Administration’s (NOAA) Climate Prediction Center , we know what temperatures and precipitation trends to expect in our city for July, August, and September. While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for the summer.
Reminder: The first day of summer is Wednesday, June 21.
🌡️ Temperature
Think hot. San Diego County has a 33-50% chance of temperatures leaning above normal — on par with national trends .
🌨️ Precipitation
Although 2023 has been quite rainy locally , NOAA predicts SD will experience ordinary rainfall amounts for summer — so, not much.
☀️ Drought
NOAA predicts drought conditions will be kept at bay. January-May 2023 made for the ninth wettest year to date in San Diego County over the past 129 years — with nearly 8 inches of rainfall above normal.
Joyous July
Typically, July in SD is warm, with the average high at 75.4°. Grab your shades: July and August are the sunniest months — averaging 11.9 hours of sunshine daily — and also bring the highest UV index of 6. Pro tips : wear sunscreen and sun-protective clothing.
Awesome August
August is just beachy . It’s the warmest month of the year in San Diego — averaging a high of 77.4° — and the month with the warmest ocean water, nearly 68°. The average length of the day (sunrise to sunset) is 13 hours and 19 minutes, plenty of time for family fun .
Sizzlin’ September
Summer runs through Friday, Sept. 22. This month’s temps are still hot, averaging a high of 76.6° — and it feels a lot like August. The sun shines for an average of 10.3 hours daily, and average humidity hovers around 68%.
Looking further ahead: Weather experts say El Niño
has arrived earlier than expected, so it’ll likely grow stronger through the 2023-2024 fall and winter.