United States and Canada · United States
Cheap flights to San Diego
Beaches, Balboa Park and Mexican food, with mild weather much of the year.
- Best weather
- Apr to Nov
- Warmest
- Aug, 25°C
- Airport
- SAN
Best time to visit San Diego
The best time to visit San Diego for the weather is from April to November, when daytime highs average 20 to 25°C (68 to 77°F) and it's mostly dry.
There's no real wet season: rain is spread through the year, with the most in February (about 7 rainy days) and the least in August.
The warmest month is August, with highs around 25°C (77°F); the coolest is December, at around 19°C (66°F) by day and 10°C (50°F) at night.
San Diego weather by month
Average daytime highs, overnight lows and rain for each month.
| Month | High | Low | Rain | What it's like |
|---|---|---|---|---|
| January | 19°C 66°F | 10°C 50°F | 7 rainy days | Mild and dry |
| February | 19°C 66°F | 11°C 52°F | 7 rainy days | Mild and dry |
| March | 19°C 67°F | 13°C 55°F | 6 rainy days | Mild and dry |
| April Best | 20°C 69°F | 14°C 57°F | 4 rainy days | Mild and dry |
| May Best | 21°C 69°F | 16°C 60°F | 2 rainy days | Mild and dry |
| June Best | 22°C 72°F | 17°C 63°F | 1 rainy day | Mild and dry |
| July Best | 24°C 75°F | 19°C 66°F | 1 rainy day | Warm and dry |
| August Best | 25°C 77°F | 20°C 67°F | 0 rainy days | Warm and dry |
| September Best | 25°C 77°F | 19°C 66°F | 1 rainy day | Warm and dry |
| October Best | 24°C 75°F | 16°C 62°F | 2 rainy days | Mild and dry |
| November Best | 22°C 71°F | 13°C 55°F | 4 rainy days | Mild and dry |
| December | 19°C 66°F | 10°C 50°F | 6 rainy days | Mild and dry |
Long-term averages from San Diego Int'l Airport, 1991–2020. The weather on your dates will vary.
Flying to San Diego
Farepop finds fares to San Diego International Airport (SAN). These are the closest airports Farepop watches in each region, as the crow flies; with stops, the trip is longer.
| From | Closest airports |
|---|---|
| Australia | Brisbane 11,600 km · about 15 hours non-stop Sydney 12,100 km · about 15.5 hours non-stop |
| New Zealand | Auckland 10,500 km · about 13.5 hours non-stop Wellington 10,800 km · about 14 hours non-stop |
| United States | San Francisco 450 mi · about 1.5 hours non-stop Seattle 1,100 mi · about 2.5 hours non-stop |
| Canada | Vancouver 1,900 km · about 3 hours non-stop Calgary 2,100 km · about 3 hours non-stop |
| United Kingdom | Belfast 5,100 mi · about 11 hours non-stop Glasgow 5,200 mi · about 11 hours non-stop |
| Europe | Cork 8,300 km · about 11 hours non-stop Dublin 8,400 km · about 11 hours non-stop |
How Farepop finds cheap flights to San Diego
Compared with the usual price
Every fare is compared with what the same route usually costs for the same trip length and dates. Around busy holidays we use quieter neighbouring months, so a peak price never passes for a saving.
At least 25% below
A deal is at least 25% below the usual price for those dates, and a good fare at least 20%. Full-service airlines selling at budget prices, and travel agents undercutting the airline, are labelled as such.
Checked twice, then again
Fares are checked again on their exact dates before you hear about them, and regularly after. Ones that no longer qualify are withdrawn.
You book direct
Farepop doesn't sell tickets. Tap a deal and book with the airline or travel site; always check the final price, baggage and conditions before you pay.
The full rules are in our savings methodology.
San Diego: questions
When is the best time to visit San Diego?
For the weather, from April to November, when daytime highs average around 23°C. These are long-term averages from San Diego Int'l Airport, 1991–2020.
Does it rain a lot in San Diego?
San Diego has no distinct wet season. February is usually the wettest month, with about 7 rainy days.
Which airport do you fly into for San Diego?
Farepop finds fares to San Diego International Airport (SAN).
How can I find cheap flights to San Diego?
Be flexible with your dates and let the fares come to you. Farepop watches flights from your home airports and alerts you when a trip to San Diego costs at least 25% less than it usually does for those dates, so you can book before the fare goes.
More places like San Diego
Orange County
United States
Good all year
Palm Springs
United States
Best Nov to Apr
Ontario (California)
United States
Best Mar to Jun, Oct to Nov, Jan
Vancouver
Canada
Best Jul to Aug
Calgary
Canada
Best Jul to Sep
Winnipeg
Canada
Best Jun to Sep
Montréal
Canada
Best Jun to Sep
Halifax
Canada
Best Jul to Aug
Fly to San Diego for less.
Android coming soon