Is Shinjuku hot in August?
Days are typically hot at 31.4°C, while nights average 24.5°C.
Japan · 1991–2020 normal
Shinjuku in
August.
Typical August weather in Shinjuku: 31.4°C by day, 24.5°C at night, 178 mm of rain over 8.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.4°C
Typical low24.5°C
Rain178 mm
Wet days8.1
In the year-round weather comparison, August scores 34 out of 100 (May leads the year at 78). Daylight is calculated as 13 h 30 from latitude 35.69°. Open-water sea temperature is 25.9°C (17 km from the place centre).
August at a glance
What is Shinjuku like in August?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 178 mm across about 8 wet days.
How much daylight is there?
There are about 13 h 30 between sunrise and sunset at mid-month, calculated from the place latitude.
Is August a good time to visit?
August ranks 8 of 12 in our weather comparison; May ranks first.
Event window
Warm sea in August
The nearest open-water NOAA OISST 1991–2020 cell averages 25.9°C in August. 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 11790353
- NOAA station
- JA000047662 · TOKYO
- Station distance
- 5.4 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.
Next step
Choose your month.
Then plan the details.
The weather comparison for Shinjuku 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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