Where Is Hot in September from San Juan? 2026
19 warm destinations have direct flights from San Juan in September. Washington has the best overall weather. Philadelphia has the lowest fares from €192.
|
Washington
United States
|
21°C | 3h 20m | €312 | €93/night | 166 |
|
Madrid
Spain
|
26°C | 8h 20m | €703 | €122/night | 96 |
|
Philadelphia
United States
|
23°C | 3h 40m | €192 | €71/night | 103 |
|
New York
United States
|
23°C | 3h 40m | €300 | €221/night | 114 |
|
Baltimore
United States
|
24°C | 3h 20m | €267 | €73/night | 99 |
|
Newark
United States
|
23°C | 3h 40m | €284 | €87/night | 118 |
|
Detroit
United States
|
22°C | 4h 20m | €506 | €89/night | 3 |
|
Boston
United States
|
21°C | 3h 40m | €244 | €95/night | 121 |
|
Richmond
United States
|
25°C | 3h 20m | €290 | €67/night | 30 |
|
Denver
United States
|
23°C | 5h 40m | €603 | €59/night | 41 |
|
Chicago
United States
|
22°C | 4h 20m | €394 | €86/night | 111 |
|
Buffalo
United States
|
20°C | 4h | €276 | €82/night | 45 |
|
Charlotte
United States
|
26°C | 3h 20m | €530 | €67/night | 98 |
|
Atlanta
United States
|
28°C | 3h 20m | €244 | €54/night | 113 |
|
Orlando
United States
|
30°C | 2h 40m | €238 | €61/night | 119 |
|
Tampa
United States
|
30°C | 2h 40m | €236 | €85/night | 108 |
|
Dallas
United States
|
32°C | 4h 40m | €524 | €52/night | 52 |
|
Miami
United States
|
30°C | 2h 20m | €192 | €87/night | 109 |
|
Houston
United States
|
31°C | 4h 20m | €394 | €51/night | 119 |
Temperatures are historical averages for September. Prices updated 11 Sep 2026.
Warmest destinations from San Juan in September
The warmest places to fly to directly from San Juan in September, ranked by average daytime temperature. All destinations average 18°C or above and are reachable on a direct flight.
Washington
21°C avg daytime
From €312 return
3h 20m direct
166 trips available
Madrid
26°C avg daytime
From €703 return
8h 20m direct
96 trips available
Philadelphia
23°C avg daytime
From €192 return
3h 40m direct
103 trips available
New York
23°C avg daytime
From €300 return
3h 40m direct
114 trips available
Baltimore
24°C avg daytime
From €267 return
3h 20m direct
99 trips available
Frequently Asked Questions
Where is hot in September from San Juan?
There are 19 warm destinations reachable by direct flight from San Juan in September. Washington is among the top picks, with average daytime temperatures around 21°C.
Which is the warmest place to fly to from San Juan in September?
Dallas is typically the warmest destination reachable by direct flight from San Juan in September, averaging around 32°C during the day.
What is the cheapest warm holiday from San Juan in September?
Philadelphia is among the cheapest warm destinations from San Juan in September, with return fares from around €192.
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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