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.