Climate Chart of Saitama, Japan

Climate overview

Temperature

Monthly mean temperatures reach their highest point in August, at 27.1 °C, and their lowest in January, at 3.4 °C. These are monthly averages rather than daytime highs or lows, so they give a broad sense of the temperature pattern without describing daily extremes. The unweighted mean across the monthly means is 15.2 °C. It provides a compact overview of the period but is not a day-weighted annual average and does not indicate how temperatures vary within a month.

Rain

Mean daily rainfall is highest in October, at 6.82 mm/day, and lowest in January, at 1.39 mm/day. The lowest monthly mean may suit visitors prioritising lower average rainfall, while the highest is a useful cue to prepare for wet-weather possibilities. Neither figure guarantees dry or rainy days or tells how frequently rain occurs. The unweighted mean of the monthly daily-rainfall means is 3.90 mm/day. These are daily averages, not monthly rainfall totals, so they should not be read as the amount expected to accumulate over a whole month.

Snow

Mean daily snowfall reaches its highest monthly level in February, at 3.57 mm/day. The unweighted mean across monthly snowfall means is 0.55 mm/day. These amounts do not establish how many days have snow, snow depth or cover, or whether conditions are suitable for skiing.

Sunshine

Mean daily sunshine reaches 9.27 hours/day in August and its lowest level, 6.64 hours/day, in October. These monthly averages can help with planning outdoor time, but sunshine duration is not the same as daylight length and does not guarantee clear conditions on a given day. The unweighted mean across monthly sunshine means is 7.89 hours/day per day. It summarizes the monthly figures without weighting them by the number of days in each month.