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Moss in September 2026: weather, temperatures and activities

Do you want to visit Moss in September 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether September is a good month to travel to Moss, Norway.

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Is it worth visiting Moss in September?

Check your ideal travel criteria and see if the month of September suits your plans to go to Moss.
What matters most?
Moss in September 2026: weather, temperatures and activities

Page summary

Moss in September in summary
Favourable weather
Min 11°C Max 16°C 93 mm 4 day(s) 84% 42% 18°C 11.2 h/day
Best activities in September
Hiking and trekkingGastronomy
Practical guidelines
High crowding 05:46 18:37
Hourly weather

Average weather in Moss in September 2026

Favourable weather

The weather in Moss in September 2026 is based on statistical data from previous years in September. This allows you to forecast the weather in September 2026. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Moss in September

Temperatures, precipitation and monthly trends help to better understand the climate in Moss in September.

Temperatures and rain in Moss in September

Average daily weather

Temperatures and rain day by day in September.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of September is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Moss in September

Seasonal normals

Seasonal normals of Moss in September

Check the seasonal normals in Moss in September and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
September
Weather data August September October
Outside temperature
Average temperature 16.9°C 13.3°C 8.1°C
Maximum temperature 19.2°C 15.8°C 10.0°C
Minimum temperature 14.7°C 10.8°C 6.2°C
Record maximum temperature 25.0°C
(2009)
23.0°C
(2016)
19.0°C
(2011)
Record low temperature 8.0°C
(2010)
3.0°C
(2009)
-2.0°C
(2018)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 25 day(s)
(81%)
8 day(s)
(27%)
0 day(s)
(0%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
1 day(s)
(3%)
Sea temperature
Sea temperature (average) 18.3°C 15.9°C 12.1°C
Sea temperature (minimum) 15.9°C 13.3°C 9.3°C
Sea temperature (maximum) 20.7°C 18.2°C 15.0°C
Wind
Wind speed 17 km/h 18 km/h 19 km/h
Wind temperature 14.2°C 9.4°C 3.6°C
Precipitation (rain)
Precipitation 107.0 mm 92.6 mm 106.3 mm
Number of days with precipitation 17 day(s)
(55%)
13 day(s)
(43%)
15 day(s)
(48%)
Number of days with significant precipitation (greater than 5 mm) 6 day(s)
(20%)
4 day(s)
(15%)
6 day(s)
(20%)
Record precipitation in one day 65.1 mm
(2020)
67.8 mm
(2019)
39.2 mm
(2012)
Other weather data
Humidity 82% 84% 85%
Visibility 9.3 km 9.3 km 9.0 km
Cloud cover 37% 42% 52%
UV index 5 4 3
Daily sunshine 13h 11h 7h
Sunrise and sunset
Sunrise time 04h34 05h46 06h56
Sunset time 20h07 18h37 17h09
Day length 15h33 12h51 10h13
Our opinion on the climate in September
The review of Where And When favourable weather favourable weather adverse weather
Activities and events

What to do in Moss in September?

Best activities in September
Hiking and trekkingGastronomy
Possible activities in September
Beach and swimmingCultural visits and heritageNature and landscapesBoat trip and cruise
Observed weather

What was the weather like in Moss in September last?

Find the observed weather calendar in Moss in September 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Cloudy
15°C18°C3.7 mm
2
Clear/Sunny
14°C18°C0.0 mm
3
Clear/Sunny
13°C18°C0.8 mm
4
Light rain shower
15°C17°C11.4 mm
5
Patchy rain nearby
14°C17°C1.1 mm
6
Partly Cloudy
13°C18°C0.0 mm
7
Clear/Sunny
12°C18°C0.0 mm
8
Cloudy
11°C19°C0.0 mm
9
Patchy rain nearby
13°C19°C0.1 mm
10
Patchy rain nearby
14°C21°C0.6 mm
11
Light rain shower
15°C17°C4.5 mm
12
Light rain shower
13°C14°C4.9 mm
13
Patchy rain nearby
12°C16°C3.2 mm
14
Light rain shower
12°C15°C5.0 mm
15
Light rain shower
10°C14°C4.5 mm
16
Light rain shower
13°C15°C5.6 mm
17
Clear/Sunny
10°C16°C0.7 mm
18
Partly Cloudy
11°C17°C0.0 mm
19
Partly Cloudy
14°C18°C0.0 mm
20
Overcast
16°C18°C0.8 mm
21
Clear/Sunny
15°C16°C0.7 mm
22
Clear/Sunny
9°C14°C0.0 mm
23
Clear/Sunny
5°C12°C0.0 mm
24
Clear/Sunny
7°C12°C0.0 mm
25
Clear/Sunny
7°C14°C0.0 mm
26
Clear/Sunny
9°C14°C0.0 mm
27
Clear/Sunny
8°C14°C0.0 mm
28
Clear/Sunny
9°C15°C0.0 mm
29
Patchy rain nearby
10°C14°C0.4 mm
30
Patchy rain nearby
9°C12°C0.3 mm
Nearby

Where to go near Moss in September?

Compare cities and destinations near Moss in September to find another travel stop, a nearby alternative or a logical continuation of your stay in Moss.

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Every month

Best time to visit Moss month by month

Compare the weather in Moss across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Moss in September: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, it’s a good time. Conditions are favorable in Moss in September, which places this month 4th out of 12.

Expect an average of 16°C during the day and 11°C at night, with about 93 mm of precipitation spread over 4 rainy days.

The sea is only 16°C on average in September. Swimming is still possible, but it will be cool.

Expect about 11.2 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Hiking and trekking and Gastronomy. These are the ones for which the conditions on site are most favourable.

Yes: this month is in High crowding, with a visitor index of 72/100. Book your accommodation and transportation well in advance.

The most favorable months in Moss are: June, July, August and September. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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