Plymouth Weather in September
September in Plymouth typically sees daytime highs of 28°C (82°F) and nighttime lows of 18°C (64°F). As the wettest month of the year, expect more rainfall than other months.
Rainfall in Plymouth in September
With the year's heaviest rain occurring this month, it's best to be equipped with a poncho to handle the frequent downpours. Based on our climate data of the past 30 years, about 11 days of rain are anticipated, with 162 mm (6.4 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Plymouth in September
Daytime temperatures in Plymouth reach 28°C (82°F) in September, dropping to 18°C (64°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.For Plymouth itself, October generally stands out with 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Plymouth's climate page.
Plymouth Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
28°C (82°F)
Chance of Rain
37%
Precipitation
162 mm (6.4 in)
Rainy days
11 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Plymouth in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in Plymouth in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Plymouth's climate page.
See the full Plymouth climate overview or explore weather in the United States of America.
