The maximum daily temperature 39°C — 4 September 2015.
The maximum night temperature 28°C — 6 September 2015.
The minimum daily temperature 15.5°C — 2 September 2017.
The minimum night temperature 10°C — 23 September 2014.
Washington, United States — weather in September, water temperature
Weather in resort cities around the world, data for the past 5 years. Information includes daytime and nighttime temperatures, water temperature, rainfall, and day length. Convenient graphics and weather comparison in different resorts around the world.
Washington — weather by month, water temperature
Washington — weather in September, water temperature
Air temperature
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
Water temperature
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
The warmest water 29.7 °C — 8 September 2018.
The coldest water 19.3 °C — 29 September 2013.
Sunny, cloudy and gloomy days
Sunny days — 14
Rainy days — 8
Gloomy days — 8
Precipitation, mm
Maximum precipitation 108.4 mm — August.
Minimum precipitation 51.2 mm — January.
Wind speed, km / h
Maximum wind speed 14.9 km / h — April.
Minimum wind speed 9.8 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 9.8 h. — June.
The minimum number of hours of sunshine per day 5.1 h. — December.
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