This page is a single place to check Chiba climate: monthly averages. Chiba runs from 4.7 C in Jan to 26.9 C in Aug, a swing of 22.2 C. Rain is spread through the year, with Oct the wettest month at 7.94 mm/day and Jan the driest at 2.59 mm/day. Taken together that is roughly 1,689 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
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 35.6, 140.11667
Population 979,768
Average monthly temperature and rainfall in Chiba
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 Chiba climate table shows
Values are multi-decadal climatological averages for the 35.6, 140.11667 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.