Irmo, SC, September 23, 2025
News Summary
Irmo, SC is set to enjoy a sunny and warm day on September 23, 2025, with temperatures rising from a comfortable 64°F in the morning to a high of 90°F in the afternoon. Clear skies and low risk of rain make it a perfect day for outdoor activities. Residents are advised to wear sunscreen and stay hydrated, particularly as the UV index is high. The day will end with a beautiful sunset and a waxing gibbous moon rising shortly after.
Sunny and Warm Conditions Expected in Irmo, SC on September 23, 2025
Good morning, Irmo! If you’re a fan of sunny days and warm weather, you’re in for a treat today. The sky is clear, and as of early in the morning at 5:32 AM, the temperature is a comfortable 64°F (18°C). It’s shaping up to be a delightful day full of sunshine and great outdoor opportunities!
Hourly Forecast
As we move through the day, temperatures are set to increase steadily. Here’s a look at what you can expect hour by hour:
- 9:00 AM: Mostly sunny, 66°F (19°C)
- 10:00 AM: Mostly sunny, 73°F (23°C)
- 11:00 AM: Mostly sunny, 78°F (26°C)
- 12:00 PM: Mostly sunny, 82°F (28°C)
- 1:00 PM: Mostly sunny, 85°F (30°C)
- 2:00 PM: Mostly sunny, 87°F (31°C)
- 3:00 PM: Mostly sunny, 89°F (32°C)
- 4:00 PM: Mostly sunny, 90°F (32°C)
- 5:00 PM: Mostly sunny, 89°F (31°C)
- 6:00 PM: Mostly sunny, 87°F (30°C)
- 7:00 PM: Mostly sunny, 83°F (28°C)
- 8:00 PM: Mostly clear, 80°F (27°C)
- 9:00 PM: Mostly clear, 77°F (25°C)
- 10:00 PM: Mostly clear, 74°F (24°C)
- 11:00 PM: Mostly clear, 71°F (22°C)
With those temperatures climbing, don’t forget to grab your sunglasses and sunscreen if you’re spending time outside today!
Average September Conditions
As we look at the bigger picture, the average temperatures for September in Irmo typically range from a high of 85°F (29°C) to a low of 67°F (19°C). Today’s forecast aligns nicely with those averages, making it a perfect day to enjoy the outdoors.
In terms of sunshine, September boasts an impressive average of 217 hours this month, which surely adds a little brightness to our days! Plus, rainfall averages around 3.15 inches (80 mm), but today, there’s no significant chance of rain, so feel free to explore the local parks or take a walk in your neighborhood.
UV Index and Sun Protection
While we’re all excited about the sunshine, it’s essential to keep an eye on that UV index, which averages around 6 for today. That means there is a high risk of harm from unprotected sun exposure. It’s a good idea to wear sunscreen, hats, or bring an umbrella if you plan to be outside.
Weather Conditions Overview
Humidity is sitting at a comfortable 72%, and we can expect light winds from the south at around 5 to 10 mph. Air quality looks good today with an index of 43, meaning there are minimal health risks, so take a deep breath and enjoy that fresh air!
As the sun sets at 7:27 PM, keep an eye out for a beautiful waxing gibbous moon, which will rise around 7:00 PM.
Final Thoughts
All in all, it’s going to be a lovely day in Irmo, SC. With clear skies, warm temperatures, and lots of opportunities for sunshine, it’s a perfect day to enjoy nature, hit the local running trails, or simply relax on your porch. Just remember to stay hydrated and protect yourself from the sun!
FAQ
What is the hourly weather forecast for Irmo, SC on September 23, 2025?
The hourly forecast is as follows: 9:00 AM – 66°F, 10:00 AM – 73°F, 11:00 AM – 78°F, 12:00 PM – 82°F, 1:00 PM – 85°F, 2:00 PM – 87°F, 3:00 PM – 89°F, 4:00 PM – 90°F, 5:00 PM – 89°F, 6:00 PM – 87°F, 7:00 PM – 83°F, 8:00 PM – 80°F, 9:00 PM – 77°F, 10:00 PM – 74°F, and 11:00 PM – 71°F.
What is the average temperature for September in Irmo, SC?
The average temperatures for September in Irmo typically range from a high of 85°F and a low of 67°F.
Is there a risk of rain today in Irmo, SC?
Today, there is no significant chance of rain expected.
What are the UV index and air quality today in Irmo, SC?
The UV index for today is around 6, indicating a high risk of harm from unprotected sun exposure, and the air quality index is 43, meaning minimal health risks.
Weather Summary Chart
| Feature | Details |
|---|---|
| Current Temp | 64°F (18°C) |
| High Temp | 90°F (32°C) |
| Low Temp | 64°F (18°C) |
| Humidity | 72% |
| UV Index | 6 |
| Wind Speed | 5-10 mph |
| Air Quality Index | 43 (Good) |
| Sunset Time | 7:27 PM |
Author: STAFF HERE IRMO
The IRMO STAFF WRITER represents the experienced team at HEREIrmo.com, your go-to source for actionable local news and information in Irmo, Lexington and Richland Counties, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Irmo Okra Strut Festival, Harbison Community Events, and local sports tournaments at the Palmetto Health Credit Union Foundation Stadium. Our coverage extends to key organizations like the Irmo Chapin Recreation Commission and the Lexington Chamber and Visitors Center, plus leading businesses in retail and healthcare that power the local economy such as Village at Sandhill and Lexington Medical Center. As part of the broader HERE network, including HEREAiken.com, HEREBeaufort.com, HEREChapin.com, HERECharleston.com, HEREClinton.com, HEREColumbia.com, HEREGeorgetown.com, HEREGreenwood.com, HEREGreenville.com, HEREHiltonHead.com, HEREIrmo.com, HEREMyrtleBeach.com, HERENewberry.com, HERERockHill.com, and HERESpartanburg.com, we provide comprehensive, credible insights into South Carolina's dynamic landscape.
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