Irmo, SC, December 21, 2025
News Summary
Irmo, SC, is experiencing a lovely December day, marked by clear skies and comfortable temperatures. The day started with a cool 34°F and is expected to warm up to 60°F by afternoon. With no travel advisories and good air quality, residents are encouraged to enjoy the outdoors. The weather insights reveal typical winter conditions, with chances of steady rainfall this month and elevated humidity levels. Daylight is abundant, offering nearly 10 hours of sunshine. Overall, it’s an excellent opportunity to appreciate the natural beauty of winter in Irmo.
Beautiful December Day in Irmo, SC!
It’s a clear and crisp morning in Irmo, SC as we welcome December 21, 2025. The temperature is currently at a cool 34°F (1°C), giving us a classic winter feel!
Hourly Forecast – What to Expect All Day
As we move through the day, our lovely weather will remain in the clear zone. Here’s how the next few hours look:
- 2:00 AM: Clear, 34°F (1°C)
- 3:00 AM: Clear, 34°F (1°C)
- 4:00 AM: Clear, 35°F (1°C)
- 5:00 AM: Clear, 35°F (1°C)
- 6:00 AM: Clear, 35°F (2°C)
- 7:00 AM: Mostly clear, 35°F (2°C)
- 8:00 AM: Mostly sunny, 38°F (3°C)
- 9:00 AM: Mostly sunny, 42°F (6°C)
- 10:00 AM: Partly sunny, 47°F (8°C)
- 11:00 AM: Partly sunny, 54°F (12°C)
- 12:00 PM: Mostly sunny, 57°F (14°C)
- 1:00 PM: Mostly sunny, 60°F (16°C)
With a sunrise scheduled for around 7:20 AM and sunset at 5:17 PM, we’re looking at approximately 9 hours and 57 minutes of daylight. How wonderful to have that sunshine streaming in!
Weather Insights for December
This time of year typically marks the start of winter in Irmo. Historical data tells us that December has an average high of about 58°F (14.6°C), with lows around 46.9°F (8.3°C). Interestingly, last year, December 21 had a high of 81°F (27°C) and a low of 17°F (-8°C). Now that’s quite a range!
This month, folks can expect about 2.64 inches (67 mm) of rainfall, usually spread over nearly 11.6 days. Oh, and snowfall is quite rare, with an average of just 0.04 inches (1 mm) over about 0.1 days in December!
Weather Comfort Levels
Humidity tends to be on the higher side during this month at around 78%, making it one of the more humid times of the year. But don’t worry too much about UV radiation; the average daily maximum UV index is 4. Just a gentle reminder to put on some sunscreen if you’re out basking in those winter rays!
Winds and Air Quality
Expect light winds between 3 to 6 mph throughout the day, keeping the air feeling fresh. Speaking of fresh, the air quality is rated as good, with no pollutants in sight. Plus, pollen levels are low, making it a great day for those sensitive to allergies!
Moonrise and Moonset
For those night owls, the moon will rise around 5:00 PM and set early at approximately 7:00 AM. Perfect for enjoying a peaceful evening under the starlit sky!
Travel Safety and Advisories
Looking to hit the roads? You’re in luck! There are currently no travel advisories in effect for Irmo. It’s all clear for your travels.
Final Thoughts
As we embrace this lovely December day in Irmo, feel free to head out and enjoy some outdoor activities and soak in that sunshine. Remember, it’s always lovely to have the opportunity to appreciate nature, regardless of temperature!
FAQ Section
What are the current weather conditions in Irmo, SC?
The current conditions are clear skies with a temperature of 34°F (1°C).
What is the hourly forecast for today?
The hour-by-hour forecast shows clear skies throughout the morning, warming up to a high of 60°F (16°C) by 1 PM.
Is there any rain expected in December?
Yes, December typically sees about 2.64 inches (67 mm) of rainfall over nearly 11.6 days.
Are there any travel advisories in effect?
No travel advisories are currently in effect for Irmo, SC.
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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