Saitama climate: monthly averages: annual mean temperature 13.3 C; warmest month Aug (25.6 C); coldest month Jan (1.0 C).
Annual mean temperature: 13.3 C
Warmest month: Aug (25.6 C)
Coldest month: Jan (1.0 C)
Wettest month: Sep (6.69 mm/day)
All-time record high: 36.6 C
All-time record low: -8.1 C
This is the short version of Saitama climate: monthly averages, with the monthly detail underneath. The gap between Jan and Aug is 24.6 C here: 1.0 C against 25.6 C. No month dominates: the wettest is Sep at 6.69 mm/day, the driest Feb at 1.71 mm/day. Taken together that is roughly 1,443 mm of rain a year for the grid cell. Because each page is rebuilt independently, one unavailable upstream never takes the rest of the site down. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 13.3 C
Warmest month Aug (25.6 C)
Coldest month Jan (1.0 C)
Wettest month Sep (6.69 mm/day)
All-time record high 36.6 C
All-time record low -8.1 C
Annual precipitation 1,449 mm / year
Coordinates 35.90807, 139.65657
Population 1,324,854
Average monthly temperature and rainfall in Saitama
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
1.0
1.72
17.2
-8.1
Feb
2.1
1.71
22.7
-7.5
Mar
5.8
2.86
23.4
-5.8
Apr
11.4
3.57
29.2
-3.7
May
16.9
4.06
31.9
1.9
Jun
20.8
5.28
34.7
7.4
Jul
24.8
5.80
36.6
12.3
Aug
25.6
5.14
36.5
14.4
Sep
21.6
6.69
35.5
6.2
Oct
15.5
6.29
31.9
1.8
Nov
9.4
2.55
24.5
-2.6
Dec
3.7
1.79
22.1
-6.6
What the Saitama climate table shows
Values are multi-decadal climatological averages for the 35.90807, 139.65657 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Is Saitama climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.