Norway · 1991–2020 normal

Vestby in
September.

Typical September weather in Vestby: 15.7°C by day, 8.3°C at night, 98 mm of rain over 9.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high15.7°C
Typical low8.3°C
Rain98 mm
Wet days9.7

In the year-round weather comparison, September scores 46 out of 100 (July leads the year at 72). Daylight is calculated as 12 h 45 from latitude 59.61°. Open-water sea temperature is 15.4°C (27 km from the place centre).

September at a glance

What is Vestby like in September?

Plain answers from the measured climate record—not a forecast or a promise about a particular trip.

Is Vestby hot in September?

Days are typically cool at 15.7°C, while nights average 8.3°C.

Does it rain much?

The measured monthly average is 98 mm across about 10 wet days.

How much daylight is there?

There are about 12 h 45 between sunrise and sunset at mid-month, calculated from the place latitude.

Is September a good time to visit?

September ranks 4 of 12 in our weather comparison; July ranks first.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 3132058
NOAA station
NOE00109885 · ASKER
Station distance
33 km from the place centre
Coverage
Strong coverage · 30 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 Vestby 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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