This page is a single place to check Yokohama climate: monthly averages. Yokohama runs from 2.2 C in Jan to 25.8 C in Aug, a swing of 23.6 C. Rain is spread through the year, with Sep the wettest month at 7.17 mm/day and Jan the driest at 2.13 mm/day. Taken together that is roughly 1,632 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. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 13.9 C
Warmest month Aug (25.8 C)
Coldest month Jan (2.2 C)
Wettest month Sep (7.17 mm/day)
All-time record high 37.5 C
All-time record low -7.0 C
Annual precipitation 1,635 mm / year
Coordinates 35.4333, 139.65
Population 3,777,491
Average monthly temperature and rainfall in Yokohama
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
2.2
2.13
17.2
-7.0
Feb
3.4
2.36
21.9
-5.8
Mar
6.9
3.70
23.5
-4.2
Apr
12.0
4.29
28.3
-3.2
May
17.0
4.58
30.8
3.4
Jun
20.8
6.02
34.9
9.1
Jul
24.7
5.80
36.6
13.2
Aug
25.8
4.99
37.5
15.3
Sep
22.1
7.17
35.7
7.6
Oct
16.1
7.16
30.9
3.4
Nov
10.4
3.24
23.8
-2.1
Dec
4.8
2.23
21.7
-5.2
What the Yokohama climate table shows
Values are multi-decadal climatological averages for the 35.4333, 139.65 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 Yokohama 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.