Climate Chart of Changsha, China

Climate overview

Temperature

The coolest monthly mean temperature occurs in January, at 6.7 °C; the warmest is in August, at 29.4 °C. These are monthly averages rather than daytime highs, so they describe the broad temperature character of each month, not the range visitors should expect on any individual day. Across the calendar months, the unweighted mean of monthly mean temperatures is 18.5 °C. It is a summary of the monthly averages, not a day-weighted annual average, and does not capture day-to-day variation.

Rain

Mean daily rainfall reaches its highest monthly average in May at 8.70 mm/day, and its lowest in December at 1.25 mm/day. These are daily mean amounts, not monthly totals; the lower average does not guarantee rain-free days or indicate how often rain occurs. The unweighted mean of the monthly daily-rainfall averages is 4.36 mm/day. It provides a broad reference across the calendar, rather than a day-weighted annual figure or a description of rainfall on any particular visit.

Sunshine

Mean daily sunshine is highest in August at 9.79 hours/day and lowest in February at 4.56 hours/day. Sunshine duration can help with planning outdoor time, but it measures average sunshine rather than day length and cannot guarantee conditions on a chosen day. The unweighted mean of monthly daily sunshine averages is 6.67 hours/day. Use it as a broad overview, not as a day-weighted annual total or a promise of consistent sunshine.

Snow

Mean daily snowfall reaches its highest monthly average in February at 1.01 mm/day; the unweighted mean across the monthly daily averages is 0.22 mm/day. These small recorded averages establish neither the number of snowy days nor snow depth, snow cover, or skiing conditions.