Irmo Weather in September

Irmo in September averages 30°C (86°F) during the day and 18°C (64°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Irmo in September

Records from the past 30 years suggest around 8 days of rain, with 93 mm (3.7 in) average for the month. 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 Irmo in September

If you're visiting Irmo in September, expect highs of 30°C (86°F) and overnight lows around 18°C (64°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April and May typically offer the best weather for Irmo.

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• January
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• October
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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 Irmo's climate page.

Irmo Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 27%  

Precipitation 93 mm (3.7 in)  

Rainy days 8 days  

What to Wear in Irmo in September

Warm but pleasant conditions in Irmo in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Irmo in September

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

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

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 Irmo's climate page.

More climate data for Irmo

Temperature Rainfall

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