Climate averages 1991–2020

Yokosuka weather
in March.

A cool, wet month: the 9th warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 12.3°C Daytime mean, March
Average low 6.9°C Night-time mean, March
Rainfall 144 mm 13 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Yokosuka · average highYear overview

March is a cool month in Yokosuka: daytime highs average 12.3°C and nights cool to about 6.9°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 144 mm of rain on roughly 13 days, which makes March a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average March day.

The nearest other city in this atlas is Yokohama (17 km away). In March its highs average 12.0°C, about as warm as Yokosuka, with 127 mm of rain.

Among the 303 cities listed in Japan, Yokosuka ranks joint 161st of 303 for the warmest March highs and joint 246th of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Yokosuka is 0.8°C warmer than that mean.

From March to April, average highs rise by 3.8°C to 16.1°C, and monthly rainfall falls from 144 mm to 126 mm.

The annual picture

March in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Yokosuka climate table

1991–2020
Monthly climate averages for Yokosuka, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.2°C4.3°C4.3°C817.410.110 h
February 9.6°C4.3°C4.3°C848.610.911 h
March, selected 12.3°C6.9°C6.9°C14413.011.912 h
April 16.1°C11.3°C11.3°C12611.613.113 h
May 19.8°C15.7°C15.7°C13810.914.014 h
June 22.6°C19.2°C19.2°C18212.914.514 h
July 25.8°C22.8°C22.8°C14711.514.314 h
August 27.4°C24.3°C24.3°C1079.813.513 h
September 25.1°C21.7°C21.7°C18513.212.412 h
October 20.6°C16.8°C16.8°C22212.711.311 h
November 16.2°C11.8°C11.8°C11510.710.310 h
December 11.7°C7.0°C7.0°C738.59.810 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Yokosuka

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Yokosuka) is explained once on the Yokosuka year overview and on the Sources, method and limits page.