Temperatures in October
It's warm in October in Portland with an average temperature of 26°C. Temperatures this month range from a low of 19°C to a high of 31°C. At night, you can expect temperatures between 7°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Portland in October. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of October
The month of October starts in Portland with hot temperatures, averaging around 30°C during the day and nights close to 18°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-October
By mid-October, the average daytime temperature drops to around 27°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of October
By the end of October, the average daytime temperature in Portland will be around 23°C, with nights close to 11°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Precipitation in October
In October, there is an average of 118 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 22% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in October for Portland. 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.
Portland in October |
London | ||
|---|---|---|---|
 Average Temperature |
26°C | 15°C | |
 High Temp |
31°C | 17°C | |
| Low Temp |
19°C | 13°C | |
 Total Precipitation |
118 mm | 115 mm | |
| Rainy Days |
7 days | 14 days | |
September
UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is October a good time to visit Portland?
After some sun? Then October isn’t the best time to be in Portland. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Portland in October
With 37°C, Portland hit the highest temperature in the last 10 years in October 2019. The lowest daytime temperature in this month was 11°C in 2018. The extreme night temperatures ranged from a low of -1°C to a high of 24°C.
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Daily Temperature in October in Portland
This chart shows the average daily temperatures, both day and night, for each day in October in Portland, 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 October in Portland
The chart below shows the average daily precipitation in October for Portland, 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 October, you can expect around 7 days of rain in Portland.
Daily UV Index in October in Portland
This chart shows the average daily UV index in October in Portland, 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 October in Portland Over the Years
This chart shows the average temperature in October in Portland, measured in degrees Celsius, over the past years.
Total Precipitation in October in Portland Over the Years
This chart shows the average precipitation in October in Portland, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in October for Portland
Click on a specific day in October for detailed info on the typical weather on that day in Portland. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in October in Portland
Have you been to Portland in October?
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Average Weather in Portland by Month
Click on a month below to see detailed weather info for Portland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
