Washington, United States
Weather by months in Washington
January
February
March
April
May
June
July
August
September
October
November
December
24ºC
Avg. daily temperature
29ºC
High
8ºC
Low
60 mm
Total precipitation
60%
Avg. humidity
5m/s
Avg. wind
12 
Sunny days
10 
Cloudy days
8 
Rainy days
Air temperature
September
The temperature is between 11 and 21 degrees Celsius.
Low11º21ºHigh
1.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
4.9The temperature is between 14 and 24 degrees Celsius.
Low14º24ºHigh
7.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
10.9The temperature is between 12 and 22 degrees Celsius.
Low12º22ºHigh
13.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
16.9The temperature is between 14 and 24 degrees Celsius.
Low14º24ºHigh
18.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
20.9The temperature is between 12 and 22 degrees Celsius.
Low12º22ºHigh
22.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
24.9The temperature is between 12 and 22 degrees Celsius.
Low12º22ºHigh
26.9The temperature is between 13 and 23 degrees Celsius.
Low13º23ºHigh
28.9In Washington, September experiences a maximum daytime temperature of around 29ºC and a minimum nighttime temperature of 8ºC. The average daily high is about 24ºC, while the average nightly low hovers around 13ºC. This is a great month for outdoor festivals, visiting the U.S. Capitol, or enjoying a walk through the vibrant streets of D.C.
