Everything below is collected in one spot so you do not have to cross-check Ota climate: monthly averages by hand. The gap between Jan and Aug is 22.2 C here: 4.7 C against 26.9 C. No month dominates: the wettest is Oct at 7.94 mm/day, the driest Jan at 2.59 mm/day. Taken together that is roughly 1,689 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. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 15.6 C
Warmest month Aug (26.9 C)
Coldest month Jan (4.7 C)
Wettest month Oct (7.94 mm/day)
All-time record high 36.7 C
All-time record low -3.1 C
Annual precipitation 1,694 mm / year
Coordinates 35.56126, 139.71605
Population 748,081
Average monthly temperature and rainfall in Ota
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
4.7
2.59
17.9
-3.1
Feb
5.6
2.64
20.5
-2.8
Mar
8.8
4.00
23.5
-1.8
Apr
13.5
4.51
26.7
-0.5
May
18.2
4.76
31.1
6.0
Jun
21.8
6.17
34.1
11.0
Jul
25.5
4.92
36.4
16.1
Aug
26.9
4.33
36.7
17.9
Sep
23.6
7.02
35.4
12.0
Oct
18.1
7.94
30.1
7.0
Nov
12.7
3.99
23.9
1.1
Dec
7.3
2.69
23.3
-2.1
What the Ota climate table shows
Values are multi-decadal climatological averages for the 35.56126, 139.71605 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
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.
How much rain is 7.94 mm/day in a month?
Rain is recorded as a daily mean, so 7.94 mm/day is roughly 241 mm across a 30-day month.