Annual mean 17°C · wettest around April · prevailing wind NE
Warmest
30.9 °C
Coldest
8.9 °C
Wettest
37%
Windiest
5.0 m/s
Prevailing
NE
4.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Yokosuka over the whole year is 17°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 4°C. Yokosuka has no sharply defined rainy season: the chance of rain on a given day runs from 16% in January, the driest month, to 29% in April, the wettest. Winds in Yokosuka are highest in March, averaging 4.0 m/s (14 km/h), and lightest in November, at 3.4 m/s (12 km/h). The prevailing wind is from the NE. The clearest skies in Yokosuka come in January, when the sky is typically 45% covered; June is the cloudiest month, at 71%.
Month by month Yokosuka climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
10°C
4°C
4°C
16%
45%
3.6 m/s
0
0
32
February
10°C
5°C
5°C
17%
50%
3.9 m/s
2
0
34
March
13°C
9°C
9°C
29%
58%
4.0 m/s
16
0
60
April
18°C
13°C
14°C
29%
61%
4.0 m/s
48
1
77
May
22°C
17°C
20°C
26%
66%
3.8 m/s
80
12
66
June
25°C
21°C
25°C
28%
71%
3.5 m/s
68
44
29
July
29°C
25°C
31°C
24%
64%
3.6 m/s
19
51
5
August
30°C
26°C
33°C
24%
62%
3.7 m/s
9
40
2
September
27°C
23°C
28°C
27%
68%
3.6 m/s
41
50
16
October
21°C
17°C
20°C
28%
65%
3.7 m/s
68
19
60
November
17°C
12°C
14°C
23%
56%
3.4 m/s
46
1
79
December
12°C
7°C
8°C
16%
47%
3.4 m/s
6
0
56
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Yokosuka weather by season
Year round, Yokosuka has days of about 10°C at their warmest in January, its coolest month, and 30°C in August, its warmest; the coolest hours of the day run from 4°C to 26°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around April and least likely around January. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Yokosuka weather in winterDecember to February
High 10°CLow 5°CRain 16%
Winter in Yokosuka has typical daily highs of about 10°C and lows of about 5°C, with a 16% chance of rain on a given day.
Yokosuka weather in springMarch to May
High 18°CLow 13°CRain 28%
Spring in Yokosuka has typical daily highs of about 18°C and lows of about 13°C, with a 28% chance of rain on a given day.
Yokosuka weather in summerJune to August
High 28°CLow 24°CRain 25%
Summer in Yokosuka has typical daily highs of about 28°C and lows of about 24°C, with a 25% chance of rain on a given day.
Yokosuka weather in autumnSeptember to November
High 22°CLow 17°CRain 26%
Autumn in Yokosuka has typical daily highs of about 22°C and lows of about 17°C, with a 26% chance of rain on a given day.
When is the rainy season in Yokosuka?
Yokosuka has no sharply defined rainy season: the chance of rain on a given day runs from 16% in January, the driest month, to 29% in April, the wettest.
What time of year is Yokosuka windiest?
Winds in Yokosuka are highest in March, averaging 4.0 m/s (14 km/h), and lightest in November, at 3.4 m/s (12 km/h). The prevailing wind is from the NE.
What is the average temperature in Yokosuka year round?
The average temperature in Yokosuka over the whole year is 17°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 4°C.