Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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.
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
Irmo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Irmo - and find the best time to visit.
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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
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Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Irmo 3-Day Forecast
More climate data for Irmo
See the full Irmo climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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