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United StatesThe weather in September in Napavine
It's warm in September in Napavine with an average temperature of 23°C. Temperatures this month range from a low of 19°C to a high of 27°C. At night, you can expect temperatures between 9°C and 13°C.
Looking for great weather? September is a good time to be in Napavine. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Napavine, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 34°C in 2017, Napavine reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 12°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 17°C.
Rainfall amount
In September, there is an average of 30 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Napavine
Click on any day in September to get detailed info about the usual weather on that day in Napavine. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Napavine | New York | |
|---|---|---|
| Average temperature | 23°C | 27°C |
| Max. temperature | 27°C | 31°C |
| Min. temperature | 9°C | -5°C |
| Total precipitation | 30 mm | 57 mm |
| Rainy days | 7 days | 9 days |
Start of September
The month of September starts in Napavine with warm temps, averaging around 26°C during the day and nights around 12°C.
Mid September
By mid-September, daytime temps drop to around 23°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Napavine is around 22°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Napavine for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Napavine, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Napavine
Temperature in September in Napavine over the years
Precipitation charts
These charts show the average amount of precipitation in September in Napavine, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Napavine
Total precipitation in September in Napavine over the years
Daily UV index in September in Napavine
This chart shows the average daily UV index in September in Napavine, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Napavine
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Average weather in Napavine by month
Click on a month below to see detailed weather info for Napavine. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.