🇺🇸 Allentown vs 🇹🇷 Istanbul
Weather Comparison
Current Weather Right Now
🇺🇸
Allentown

55°F
Scattered Clouds
Feels like 53°F
H 56°F / L 52°F
Humidity: 66%
🇹🇷
Istanbul

53°F
Clear Sky
Feels like 50°F
H 53°F / L 53°F
Humidity: 50%
Climate Overview
Allentown
Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less precipitation than the coastal plain. The Blue Mountain blocks some northwesterly cold air creating slightly milder conditions. The Lehigh River creates valley humidity and the dense urban core has significant heat island effects.
Istanbul
Mediterranean-influenced humid subtropical — warm summers, cool wet winters
Istanbul straddles two continents with a climate to match. The Bosphorus creates a persistent wind corridor that moderates summer heat. Winters are cold and rainy with occasional snow. Spring and fall are exceptional.
Seasonal Comparison
| Season | 🇺🇸 Allentown | 🇹🇷 Istanbul |
|---|---|---|
| Spring | — | 46–68°F March–May |
| Summer | — | 72–86°F June–August |
| Fall | — | 57–77°F September–November |
| Winter | — | 38–48°F December–February |
Allentown vs Istanbul: Frequently Asked Questions
Does Allentown or Istanbul have better weather?
Allentown and Istanbul have very different climates. Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less pr Istanbul: Mediterranean-influenced humid subtropical — warm summers, cool wet winters. The best city depends on your preferred season and temperature range.
When is the best time to visit Allentown vs Istanbul?
Best time for Allentown: spring and fall. Best time for Istanbul: April, May, September, October.