Hermiston in August

7.8out of 10

Yes, a good time to go

Hot: daytime highs around 33°C. Very dry: about 1 rainy days.

33°CAvg high
17°CAvg low
1Rainy days (4 mm)
13:57 hDaylight
06:03Sunrise · 20:00 Sunset

Why this score

  • Hot: daytime highs around 33°C
  • Very dry: about 1 rainy days

What to wear and pack

  • Light, breathable clothing
  • Shorts or a light skirt
  • Sunscreen, sunglasses and a hat

How reliable is the forecast?

Rainfall in August is fairly consistent from year to year (1.0 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

6° 0° J 10° 1° F 14° 3° M 19° 6° A 25° 11° M 29° 14° J 34° 17° J 33° 17° A 28° 13° S 19° 7° O 11° 3° N 6° -1° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 6°C0°C39 mm 10– – 5.1
February 10°C1°C30 mm 8– – 5.9
March 14°C3°C33 mm 9– – 6.7
April 19°C6°C25 mm 6– – 7.8
May 25°C11°C24 mm 5– – 8.4
June 29°C14°C16 mm 3– – 8.7
July 34°C17°C4 mm 1– – 7.6
August 33°C17°C4 mm 1– – 7.8
September 28°C13°C8 mm 2– – 8.8
October 19°C7°C25 mm 6– – 7.9
November 11°C3°C36 mm 8– – 6.2
December 6°C-1°C41 mm 10– – 5.0

Frequently asked questions

How hot is Hermiston in August?

Daytime highs average 33°C and nights about 17°C.

When is the best time to visit Hermiston?

The best months are September, June, May.