Climate averages 1991–2020

Miyakonojō weather
in May.

A warm, very wet month: the 5th warmest and the 9th driest of the year.

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

Average high 23.6°C Daytime mean, May
Average low 15.6°C Night-time mean, May
Rainfall 207 mm 12 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Miyakonojō · average highYear overview

May is a warm month in Miyakonojō: daytime highs average 23.6°C and nights cool to about 15.6°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 207 mm of rain on roughly 12 days, which makes May a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 45 min on an average May day.

The nearest other city in this atlas is Kirishima (29 km away). In May its highs average 24.5°C, 0.9°C warmer than Miyakonojō, with 205 mm of rain.

Among the 303 cities listed in Japan, Miyakonojō ranks joint 12th of 303 for the warmest May highs and joint 292nd of 303 for the driest May (rainfall, lowest first). The mean May high of those 303 cities is 21.3°C; Miyakonojō is 2.3°C warmer than that mean.

From May to June, average highs rise by 2.2°C to 25.8°C, and monthly rainfall rises from 207 mm to 460 mm.

The annual picture

May 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. 05101520253035 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 5000

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

Every month, side by side

Miyakonojō climate table

1991–2020
Monthly climate averages for Miyakonojō, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 11.0°C2.9°C2.9°C817.710.310 h
February 12.5°C3.8°C3.8°C1028.711.011 h
March 15.7°C6.9°C6.9°C15912.812.012 h
April 19.9°C11.0°C11.0°C18212.012.913 h
May, selected 23.6°C15.6°C15.6°C20712.313.814 h
June 25.8°C19.8°C19.8°C46020.714.214 h
July 29.7°C23.7°C23.7°C28020.214.014 h
August 30.1°C24.2°C24.2°C19919.813.313 h
September 27.6°C21.6°C21.6°C23316.412.412 h
October 23.2°C16.3°C16.3°C13710.211.411 h
November 18.3°C10.5°C10.5°C1088.610.611 h
December 13.1°C5.1°C5.1°C816.610.110 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

May in nearby cities

Distance from Miyakonojō

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 Miyakonojō) is explained once on the Miyakonojō year overview and on the Sources, method and limits page.