Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Weather in Niigata, Japan in September

In an average September, Niigata sees a daily high around 25°C and a low around 22°C, based on 1981–2026 of local climate records.

Average high25°C
Typical high range22°C to 28°C
Average low22°C
Typical low range20°C to 25°C
Average daily precipitation5 mm

September records

The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.

High

Highest 32°C 2020-09-03
Lowest 17°C 1981-09-29

Low

Highest 28°C 2010-09-06
Lowest 16°C 2001-09-23

Feels-like

Highest 44°C 2020-09-03
Lowest 16°C 2001-09-23

Humidity

Highest 24.3 g/m³ 2025-09-02
Lowest 8.3 g/m³ 1984-09-27

Wind

Highest 103 km/h 1991-09-28
Lowest 6 km/h 2014-09-15

Precip

Wettest 376 mm 2025
Driest 40 mm 2009

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