Allentown in August

7.7out of 10

Yes, a good time to go

Warm and comfortable: highs around 29°C. Frequent rain: about 10 rainy days.

29°CAvg high
19°CAvg low
10Rainy days (93 mm)
13:37 hDaylight
06:18Sunrise · 19:55 Sunset

Why this score

  • Warm and comfortable: highs around 29°C
  • Frequent rain: about 10 rainy days

What to wear and pack

  • T-shirts and light layers
  • Shorts or a light skirt
  • Rain jacket or compact umbrella
  • Sunscreen, sunglasses and a hat

How reliable is the forecast?

Rain in August varies a lot between years (±3.5 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

3° -4° J 5° -3° F 10° 0° M 17° 6° A 22° 12° M 27° 17° J 30° 19° J 29° 19° A 25° 15° S 18° 8° O 12° 3° N 6° -1° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 3°C-4°C87 mm 9– – 4.4
February 5°C-3°C76 mm 9– – 4.8
March 10°C0°C103 mm 11– – 5.5
April 17°C6°C99 mm 11– – 6.8
May 22°C12°C94 mm 11– – 7.5
June 27°C17°C104 mm 12– – 7.4
July 30°C19°C98 mm 11– – 7.2
August 29°C19°C93 mm 10– – 7.7
September 25°C15°C111 mm 9– – 7.7
October 18°C8°C101 mm 9– – 7.2
November 12°C3°C81 mm 8– – 6.3
December 6°C-1°C101 mm 10– – 4.9

Frequently asked questions

How hot is Allentown in August?

Daytime highs average 29°C and nights about 19°C.

When is the best time to visit Allentown?

The best months are August, September, May, June.