September weather forecastLeknes, Norway

September

Weather in September

September starts manifesting a contrasting climate in Leknes as it steps away from the warm summer. The temperatures slowly begin to recede, and with 120mm (4.72") rainfall experienced over 24 days, wet weather clothing becomes essential. The gradual decrease in daylight and sunshine hours is noticeable as the Nordic town segues into fall. Despite this, the sea continues to retain a portion of the summer's warmth.

Temperature

The onset of September in Leknes is marked by a minor decrease in temperature, transitioning from a mild 14°C (57.2°F) in August to a fresh 11°C (51.8°F). September witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 6°C (42.8°F).

Rainfall

In Leknes, in September, during 24 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 264 rainfall days, and 1205mm (47.44") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature in Leknes is 11°C (51.8°F).
Note: In 11°C (51.8°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.

Daylight

In September, the average length of the day is 13h and 14min.
On the first day of September, sunrise is at 05:33 and sunset at 20:37. On the last day of the month, sunrise is at 07:17 and sunset at 18:33 CEST.

Sunshine

The average sunshine in September in Leknes is 3h.

UV index

In September, the average daily maximum UV index in Leknes is 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 1 in September translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Leknes, is 11°C (51.8°F) and the average low-temperature is 6°C (42.8°F).

In Leknes, in September, during 24 rainfall days, 120mm (4.72") of precipitation is typically accumulated.

In September, the average sea temperature in Leknes, Norway, is 11°C (51.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

In Leknes, Norway, the average day length in September is 13h and 14min.

In September, on the first day of the month, sunrise is at 05:33 and sunset at 20:37. On the last day of the month, in Leknes, Norway, sunrise is at 07:17 and sunset at 18:33 CEST.

In September, the average sunshine duration in Leknes, Norway, is 3h.

In September, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

14°C

11°C

7°C

Average low temperature

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in September
Leknes, Norway

Average high temperature in September: 11°C

The warmest months (with the highest average high temperature) are July and August (14°C).
The months with the lowest average high temperature are January and February (1°C).

Average low temperature in September: 6°C

The months with the highest average low temperature are July and August (9°C).
The coldest month (with the lowest average low temperature) is February (-3°C).

Average rainfall in September
Leknes, Norway

Average rainfall in September: 120mm

The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is May (49mm).

Average rainfall days in September
Leknes, Norway

Average rainfall days in September: 24 days

The month with the highest number of rainy days is December (28 days).
The months with the least rainy days are May and June (16 days).

Average sea temperature in September
Leknes, Norway

Average sea temperature in September: 11°C

The best month for swimming (with the highest average sea temperature) is July (12.7°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).

Average daylight in September /
Average sunshine in September
Leknes, Norway

Average daylight in September: 13h and 12min

The month with the longest days is August (Average daylight: 17h and 24min).
The month with the shortest days is June (Average daylight: 0h and 0min).

Average sunshine in September: 3h

The months with the most sunshine are May and June (Average sunshine: 8h).
The months with the least sunshine are January and December (Average sunshine: 0h).

Average UV index in September
Leknes, Norway

Average UV index in September: 1

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, October, November and December (UV index 0).