Where Is Hot in September from San Diego? 2026
37 warm destinations have direct flights from San Diego in September. Reno has the best overall weather. Phoenix has the lowest fares from €40.
|
Reno
United States
|
22°C | 1h 20m | €188 | €69/night | 115 |
|
Washington
United States
|
21°C | 4h 40m | €368 | €93/night | 138 |
|
Sacramento
United States
|
25°C | 1h 20m | €111 | €70/night | 119 |
|
San Jose
United States
|
25°C | 1h 20m | €118 | €81/night | 114 |
|
Salt Lake City
United States
|
24°C | 1h 40m | €140 | €66/night | 115 |
|
Philadelphia
United States
|
23°C | 5h | €833 | €71/night | 121 |
|
Portland
United States
|
22°C | 2h 20m | €154 | €62/night | 114 |
|
Honolulu
United States
|
27°C | 5h 40m | €422 | €102/night | 123 |
|
Baltimore
United States
|
24°C | 4h 40m | €294 | €73/night | 123 |
|
Newark
United States
|
23°C | 5h 20m | €285 | €87/night | 119 |
|
Detroit
United States
|
22°C | 4h 20m | €736 | €89/night | 138 |
|
Norfolk
United States
|
21°C | 4h 40m | €205 | €64/night | 21 |
|
Boston
United States
|
21°C | 5h 20m | €195 | €95/night | 122 |
|
Pittsburgh
United States
|
22°C | 4h 40m | €340 | €72/night | 51 |
|
Omaha
United States
|
23°C | 2h 40m | €304 | €54/night | 58 |
|
Albuquerque
United States
|
25°C | 1h 40m | €270 | €62/night | 117 |
|
Seattle
United States
|
20°C | 2h 20m | €120 | €72/night | 129 |
|
Toronto
Canada
|
20°C | 4h 40m | €387 | €100/night | 152 |
|
San Francisco
United States
|
19°C | 1h 20m | €49 | €90/night | 119 |
|
Nashville
United States
|
27°C | 3h 40m | €292 | €60/night | 114 |
|
Charlotte
United States
|
26°C | 4h 20m | €870 | €67/night | 117 |
|
Atlanta
United States
|
28°C | 4h | €542 | €54/night | 140 |
|
Milwaukee
United States
|
20°C | 3h 40m | €304 | €52/night | 48 |
|
Tokyo
Japan
|
27°C | 11h 20m | €2535 | €115/night | 111 |
|
Bozeman
United States
|
18°C | 2h 20m | €246 | €81/night | 111 |
|
Minneapolis
United States
|
19°C | 3h 20m | €650 | €70/night | 138 |
|
London
United Kingdom
|
19°C | 11h 20m | €1261 | €163/night | 114 |
|
Amsterdam
Netherlands
|
18°C | 11h 20m | €2014 | €108/night | 27 |
|
New Orleans
United States
|
30°C | 3h 40m | €222 | €78/night | 90 |
|
Las Vegas
United States
|
31°C | €111 | €86/night | 112 | |
|
San Jose del Cabo
Mexico
|
30°C | 1h 40m | €336 | €30/night | 52 |
|
Orlando
United States
|
30°C | 4h 40m | €259 | €61/night | 113 |
|
Dallas
United States
|
32°C | 2h 40m | €232 | €52/night | 253 |
|
Houston
United States
|
31°C | 2h 40m | €322 | €51/night | 237 |
|
Austin
United States
|
33°C | 2h 40m | €206 | €57/night | 128 |
|
San Antonio
United States
|
32°C | 2h 40m | €218 | €55/night | 122 |
|
Phoenix
United States
|
33°C | 1h | €40 | €71/night | 113 |
Temperatures are historical averages for September. Prices updated 9 Sep 2026.
Warmest destinations from San Diego in September
The warmest places to fly to directly from San Diego in September, ranked by average daytime temperature. All destinations average 18°C or above and are reachable on a direct flight.
Reno
22°C avg daytime
From €188 return
1h 20m direct
115 trips available
Washington
21°C avg daytime
From €368 return
4h 40m direct
138 trips available
Sacramento
25°C avg daytime
From €111 return
1h 20m direct
119 trips available
San Jose
25°C avg daytime
From €118 return
1h 20m direct
114 trips available
Salt Lake City
24°C avg daytime
From €140 return
1h 40m direct
115 trips available
Frequently Asked Questions
Where is hot in September from San Diego?
There are 37 warm destinations reachable by direct flight from San Diego in September. Reno is among the top picks, with average daytime temperatures around 22°C.
Which is the warmest place to fly to from San Diego in September?
Phoenix is typically the warmest destination reachable by direct flight from San Diego in September, averaging around 33°C during the day.
What is the cheapest warm holiday from San Diego in September?
Phoenix is among the cheapest warm destinations from San Diego in September, with return fares from around €40.
How does FairFareFinder calculate the best destinations for September?
FairFareFinder uses live flight and hotel price data combined with historical weather averages to rank destinations. Temperatures shown for dates beyond 14 days ahead are historical averages for September, not live forecasts. Prices are updated approximately every 6 hours.
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