South Portland Weather in October

October in South Portland brings moderate temperatures, with highs of 15°C (59°F) and nights dropping to 6°C (43°F). Rainfall is on the higher side this month, averaging around 150 mm (5.9 in), so keep a rain jacket handy.

Rainfall in South Portland in October

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 150 mm (5.9 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in South Portland in October

October in South Portland brings typical temperatures with highs around 15°C (59°F) and lows of 6°C (43°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in South Portland in October

The area enjoys a balanced 187 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Average water temperature in October

The water temperature is 13°C (55°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

If you prefer dry days with pleasant temperatures, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our South Portland's climate page.

South Portland Temperature in October

Min Temperature 6°C (43°F)  

Max Temperature 15°C (59°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 40%  

Precipitation 150 mm (5.9 in)  

Rainy days 12 days  

Humidity 74% *  

Sunshine 187 hours *  

Percentage Sunshine 57% *  

* Data from: Portland, the United States of America (2 KM, 1 Miles).

What to Wear in South Portland in October

Pack for changing conditions in South Portland in October. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 13°C (55°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in South Portland in October

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our South Portland's climate page.

More climate data for South Portland

Temperature Rainfall Sunshine Humidity Water Temp

See the full South Portland climate overview or explore weather in the United States of America.