Best Time to Visit Walla Walla: Month-by-Month Guide

Best months for Walla Walla: August, September, July, June.

  • Best months for Walla Walla: August, September, July, June.
  • Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
  • Shoulder season: May, September, October. Good weather without the busiest period.
  • Wettest months: December, January, November.
  • The least pleasant month is December (score 3.8).

Year at a glance

4° -2° J 7° -1° F 11° 1° M 15° 4° A 20° 7° M 24° 10° J 30° 14° J 30° 13° A 24° 10° S 16° 5° O 8° 1° N 4° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 4°C-2°C83 mm 14– – 4.1
February 7°C-1°C67 mm 12– – 4.9
March 11°C1°C74 mm 13– – 5.5
April 15°C4°C57 mm 11– – 6.5
May 20°C7°C54 mm 9– – 7.6
June 24°C10°C33 mm 6– – 8.2
July 30°C14°C8 mm 2– – 8.5
August 30°C13°C11 mm 2– – 8.6
September 24°C10°C20 mm 4– – 8.6
October 16°C5°C53 mm 9– – 7.0
November 8°C1°C85 mm 14– – 4.9
December 4°C-2°C92 mm 14– – 3.8

Frequently asked questions

When is the best time to visit Walla Walla?

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

When is the rainy season in Walla Walla?

The wettest months are December, January, November.