Temperatures in September
It's pleasantly warm in September in East Cathlamet with an average temperature of 22°C. Temperatures this month range from a low of 18°C to a high of 25°C. At night, you can expect temperatures between 10°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for East Cathlamet in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in East Cathlamet with warm temperatures, averaging around 24°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature drops to around 22°C, with nights close to 12°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in East Cathlamet will be around 20°C, with nights close to 12°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Precipitation in September
In September, there is an average of 109 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The average precipitation chance is 29% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for East Cathlamet. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
East Cathlamet in September |
London | ||
|---|---|---|---|
 Average Temperature |
22°C | 20°C | |
 High Temp |
25°C | 22°C | |
| Low Temp |
18°C | 17°C | |
 Total Precipitation |
109 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit East Cathlamet?
After some sun? Then September isn’t the best time to be in East Cathlamet. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for East Cathlamet in September
With 34°C, East Cathlamet hit the highest temperature in the last 10 years in September 2017. The lowest daytime temperature in this month was 11°C in 2019. The extreme night temperatures ranged from a low of 3°C to a high of 17°C.
Check out the climate of East Cathlamet for all months and discover the best travel time
Daily Temperature in September in East Cathlamet
This chart shows the average daily temperatures, both day and night, for each day in September in East Cathlamet, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in East Cathlamet
The chart below shows the average daily precipitation in September for East Cathlamet, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 9 days of rain in East Cathlamet.
Daily UV Index in September in East Cathlamet
This chart shows the average daily UV index in September in East Cathlamet, 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.
Temperature in September in East Cathlamet Over the Years
This chart shows the average temperature in September in East Cathlamet, measured in degrees Celsius, over the past years.
Total Precipitation in September in East Cathlamet Over the Years
This chart shows the average precipitation in September in East Cathlamet, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for East Cathlamet
Click on a specific day in September for detailed info on the typical weather on that day in East Cathlamet. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in East Cathlamet
Have you been to East Cathlamet in September?
Share your weather experience in September in East Cathlamet.
Average Weather in East Cathlamet by Month
Click on a month below to see detailed weather info for East Cathlamet. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of East Cathlamet for all months at once
