Japan · 1991–2020 normal

Iiyama in
July.

Typical July weather in Iiyama: 29.8°C by day, 20.2°C at night, 145 mm of rain over 14 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high29.8°C
Typical low20.2°C
Rain145 mm
Wet days14

Comfort score 46 this month (May leads the year at 78). Daylight is calculated as 14 h 27 from latitude 36.85°. Open-water sea temperature is 23.4°C (37 km from the place centre).

Event window

Warm sea in July

The nearest open-water NOAA OISST 1991–2020 cell averages 23.4°C in July. A sheltered bay can run warmer than that open-water cell.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 1861838
NOAA station
JA000047610 · NAGANO
Station distance
25.2 km from the place centre
Coverage
Good coverage · 18 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.