Is Hitachi-Naka hot in September?
Days are typically warm at 26.4°C, while nights average 18.2°C.
Japan · 1991–2020 normal
Typical September weather in Hitachi-Naka: 26.4°C by day, 18.2°C at night, 189 mm of rain over 12.3 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, September scores 56 out of 100 (June leads the year at 69). Daylight is calculated as 12 h 22 from latitude 36.40°. Open-water sea temperature is 23.3°C (8 km from the place centre).
September at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 26.4°C, while nights average 18.2°C.
The measured monthly average is 189 mm across about 12 wet days.
There are about 12 h 22 between sunrise and sunset at mid-month, calculated from the place latitude.
September ranks 3 of 12 in our weather comparison; June ranks first.
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The nearest open-water NOAA OISST 1991–2020 cell averages 23.3°C in September. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
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The weather comparison for Hitachi-Naka is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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