Portland Weather in October

October in Portland sees daytime temperatures around 18°C (64°F) and lows of 6°C (43°F) at night. With around 81 mm (3.2 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Portland in October

This month experiences about 11 days of rain according to historical data, averaging 81 mm (3.2 in). 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 Portland in October

In October, Portland gets moderate temperatures, with highs of 18°C (64°F). Nights cool to around 6°C (43°F). Conditions are often most pleasant around the middle of the day. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Portland in October

There are approximately 206 hours of sunshine this month, resulting in mostly clear days.

If you prefer enjoying temperate temperatures and rain-free days, July 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.