Newnan (GA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Newnan.
Climate overview of Newnan
The climate in Newnan, Georgia, United States of America, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in July to 12°C (54°F) in January.
The city has a wet climate, receiving around 1276 mm (50 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and mild winters. December is the wettest month. The sunniest month is May, with 9.6 hours of sunshine per day on average.
Newnan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Newnan - and find the best time to visit.
Monthly Temperature in Newnan
In Newnan, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a moderate 12°C (54°F) in January.
Nighttime temperatures range from 20°C (68°F) in July to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Newnan
Newnan experiences significant rain/snowfall throughout the year, averaging 1276 mm (50 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 162 mm (6.4 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, September, still receives a respectable 79 mm (3.1 in) of rainfall. For more details, please visit our Newnan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Newnan
In Newnan, summer days are longer and more sunny, with daily sunshine hours peaking at 9.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 5.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Newnan by Month
The relative humidity is high throughout the year in Newnan.
The city experiences its highest humidity in August, reaching 75%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Newnan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, September and October
- Warmest weather: June, July and August
- Most sunshine: May and June
- Fewer rainy days: April, May, September, October and November
- Seasonal pattern: Very warm summers and mild winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Newnan
What is the best time to visit Newnan?
May, September and October typically offer the most optimal weather in Newnan. In contrast, January tends to have less optimal conditions. Newnan has very warm summers and mild winters.
What temperatures can I expect in Newnan?
Daytime highs range from 12°C (54°F) in January to 32°C (90°F) in July. Nighttime lows range from -1°C (30°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Newnan get?
Annual rainfall is around 1276 mm (50 in). December is the wettest month with 162 mm (6.4 in), while September is the driest with 79 mm (3.1 in).
How sunny is Newnan?
Newnan receives around 2,733 hours of sunshine per year. May is the sunniest month with 288 hours, while January is the cloudiest with just 164 hours. Overall, Newnan enjoys abundant sunshine.
Newnan 3-Day Forecast
Newnan (GA) 3-Day Forecast
Newnan on the map
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