Keizer weather
Best months for weather: May–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Keizer, Oregon, United States.
Best Time to Visit
Peak season May–SepOff season Nov–Mar
Keizer weather by month
When is the best time to visit Keizer?
Based on weather alone, the best time to visit Keizer is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 7°C (45°F) in December to 26°C (79°F) in August.
What is the rainiest month in Keizer?
December is the wettest month, with about 239 mm (9.4 in) of rain on average. July is the driest, with about 9 mm (0.4 in).
What is the hottest month in Keizer?
August is the warmest, with average highs of 26°C (79°F) and lows of 11°C (53°F). December is the coolest, with highs of 7°C (45°F) and lows of 1°C (34°F).
Does Keizer have a rainy season?
Yes. Mar, Nov–Jan is the rainy season (150 mm or more a month), while Jun–Sep is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months