Mercer Weather in September

September in Mercer brings high temperatures, with highs of 24°C (75°F) and nights dropping to 11°C (52°F). Rainfall is on the higher side this month, averaging around 95 mm (3.7 in), so keep a rain jacket handy.

Rainfall in Mercer in September

Typically around 11 days of rainfall are expected, averaging 95 mm (3.7 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Mercer in September

September is a excellent month in Mercer, with 24°C (75°F) during the day and 11°C (52°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 11°C (52°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.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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• January
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• May
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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 Mercer's climate page.

Mercer Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 38%  

Precipitation 95 mm (3.7 in)  

Rainy days 11 days  

What to Wear in Mercer in September

For Mercer in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.

What To Do in Mercer in September

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

Cycling

9/10

Walking

9/10

Camping

8/10

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 Mercer's climate page.

More climate data for Mercer

Temperature Rainfall

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