San Diego: cheap flights and the best time to go
Mild weather, a famous zoo and easy beaches. California · Beaches, Family, Cities
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Cheapest round trip
Safety level
U.S. U.S. destination: no State Department travel advisory
The State Department's travel advisories
Levels: 1 Exercise normal precautions · 2 Exercise increased caution · 3 Reconsider travel · 4 Do not travel. Read the advisory before you book; it can change. Checked 2026-10-07.
Best time to go
For the weather: August, September, July (beach weather: highs of 78–90°F, not too much rain). With fares from your airport, the best months weigh weather 60% and price 40%.
| Month | High | Low | Rain | Cheapest round trip from JFK |
|---|---|---|---|---|
| January | 66°F | 50°F | 2.0 in | … |
| February | 66°F | 51°F | 2.2 in | … |
| March | 67°F | 54°F | 1.5 in | … |
| April | 68°F | 57°F | 0.7 in | … |
| May | 69°F | 60°F | 0.3 in | … |
| June | 71°F | 62°F | 0.0 in | … |
| July (a best month) | 75°F | 66°F | 0.1 in | … |
| August (a best month) | 77°F | 67°F | 0.0 in | … |
| September (a best month) | 77°F | 66°F | 0.1 in | … |
| October | 74°F | 61°F | 0.5 in | … |
| November | 70°F | 54°F | 0.8 in | … |
| December | 66°F | 49°F | 1.7 in | … |
Typical daily high and low and total rain, 1991–2020: NOAA NCEI GHCN-Daily, station SAN DIEGO INTL AP (3 km away). ★ = the best three months. Fares are the cheapest found for trips leaving that month in the next year.
Prices are per seat for a round trip in economy; with more than one traveler they're the total for your party (babies under 2 on a lap need no seat). The booking site shows the final price for everyone.