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Hourly Forecast
Daylight Hours
07:13
Sunrise
19:23
Sunset
Moon
Waxing Crescent
12:43
Moonrise
21:50
Moonset
Daily Forecast
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Weather in Irmo today, September 16, 2026
Conditions in Irmo on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. The first half of the day looks overcast, as cloud amounts reach about 100% around 06:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 21°C up to 32°C. The air stays humid, with relative humidity between 34% and 81% and the peak around 05:00. Winds stay light, near 3.9 km/h by 17:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 27% around 12:00. The afternoon is the better half for outdoor time. Views remain open at about 16.1 km. Expect sunrise at 07:13, sunset at 19:23, and 12 hours 9 minutes of sunlight today overall.
The practical takeaway for Irmo is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 32°C.
Frequently asked questions about weather in Irmo
How warm does it get in Irmo?
The warmest month in Irmo is July, with average high temperatures of 32°C. The average temperature during this period is around 28°C.
How cold does it get in Irmo?
The coldest month in Irmo is January, with average low temperatures of 4°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Irmo?
The wettest month in Irmo is August, with an average of 149mm of precipitation.
What is the driest time of year in Irmo?
The driest month in Irmo is November, with an average of 70mm of precipitation.
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