Weather Guide

Nanao (Japan), Japan Average Monthly Weather

Weather score29Poor annual avg

Best months: August, July, September

Across the year, average daytime temperatures are around 17°C, sunshine averages 4.3h per day, and rainfall totals about 2333mm. Sea temperatures average 18°C across the year.

Annual weather

Annual averages

Temp

17°C

Rain

2333mm

Annual total

Sun

4.3h

Sea

18°C

Weather score

29

Poor avg

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Warm

Average highs sit around 28°C, giving warm days by monthly-average standards.

Wet

Rainfall averages 216mm, so showers are a real planning factor.

Some sun

Sunshine averages 5.4h per day, enough for a balanced month.

Swimmable

Sea temperatures average 24°C, which can work for swimming but may feel fresh.

Map

Weather map

Compare Nanao (Japan), Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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July28°C average high

July is one of Nanao (Japan)'s warmest months, with daytime heat above the yearly average.

Warmest monthsJuly to September

This stretch sets the upper range for average daytime heat.

July216mm average rain

July sits near Nanao (Japan)'s yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsFebruary to June, August, and October

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

July5.4 hours average sun

July is brighter than Nanao (Japan)'s yearly average, though the strongest sunshine usually sits closer to the peak months.

Brightest monthsApril to May and July to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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July24°C average sea

July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.

Warmest seaJuly to September

Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.

Weather score

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July57 weather score

July is one of Nanao (Japan)'s best weather-score months, combining the strongest overall balance in the yearly averages.

Best weather monthsJuly to September

These months have the strongest weather score in the monthly averages.

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