Temperature
Hot by day, mild at night.
86°Ftypical Aug high
Alpharetta
United States · North America
Alpharetta is most comfortable in May and October. Summers are warm and winters are cool. Rain is frequent in most months.
Best time to go
12 mo · Typical year
Temperature range
36°F to 87°F
Rain
10 days/mo
Sunshine
9 h/day
Humidity feel
Sometimes humid
When to visit
Month-by-month fit
Precipitation
One of the wettest months.
42%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
10.9 hAug sunshine
Heat & humidity by month
Warm days, with some hot afternoons and occasional humid spells.
HumidAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
44%Aug clear sky
ClearCloud cover
Similar
Similar things to doWashington DCUnited StatesSimilar things to doNew York CityUnited StatesSimilar things to doAtlantaUnited StatesSimilar things to doCincinnatiUnited States
Want a side-by-side climate view? Compare Alpharetta with Washington DC.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 11, 2026
Data & methodology