September weather forecastBohus, Sweden

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Bohus, Sweden, with an average temperature fluctuating between 10.5°C (50.9°F) and 16°C (60.8°F).

Temperature

With the onset of September, Bohus experiences a modest temperature adjustment, with the average high-temperature gently receding from an enjoyable 19.3°C (66.7°F) in August to a still comfortable 16°C (60.8°F). Throughout the month of September, the average temperature dips to a cool 10.5°C (50.9°F) at night.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Bohus, in September, during 16.6 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, there are 175.1 rainfall days, and 555mm (21.85") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 47min.
On the first day of the month, sunrise is at 06:13 and sunset at 20:10. On the last day of September, sunrise is at 07:15 and sunset at 18:48 CEST.

Sunshine

The average sunshine in September is 7.5h.

UV index

In Bohus, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

In September, in Bohus, the average high-temperature is 16°C (60.8°F), and the average low-temperature is 10.5°C (50.9°F).

In September, the average relative humidity is 80%.

In Bohus, during September, the rain falls for 16.6 days and regularly aggregates up to 51mm (2.01") of precipitation.

June through September are months without snowfall.

In Bohus, in September, it doesn't snow. In October, it regularly snows.

The average day length in September is 12h and 47min.

On the first day of September, sunrise is at 06:13 and sunset at 20:10. On the last day of the month, sunrise is at 07:15 and sunset at 18:48 CEST.

In Bohus, the average sunshine duration in September is 7.5h.

In Bohus, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bohus, Sweden

  • Average high temperature in September: 16°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The months with the lowest average high temperature are January and February (1.4°C).

  • Average low temperature in September: 10.5°C

The month with the highest average low temperature is August (13.3°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).

Average pressure in September
Bohus, Sweden

  • Average pressure in September: 1013.7mbar

The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in September
Bohus, Sweden

  • Average wind speed in September: 15.6km/h

The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).

Average humidity in September
Bohus, Sweden

  • Average humidity in September: 80%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (72%).

Average rainfall in September
Bohus, Sweden

  • Average rainfall in September: 51mm

The wettest month (with the highest rainfall) is August (66mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in September
Bohus, Sweden

  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in September
Bohus, Sweden

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Bohus, Sweden

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bohus, Sweden

  • Average daylight in September: 12h and 48min

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).

  • Average sunshine in September: 7h and 30min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in September
Bohus, Sweden

  • Average sunshine days in September: 11 days

The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is December (9.4 days).

Average UV index in September
Bohus, Sweden

  • Average UV index in September: 4

The months with the highest UV index are May, June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Bohus, Sweden

  • Average cloud cover in September: 48

The months with the most cloud cover are February, November and December (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 40).

Average visibility in September
Bohus, Sweden

  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).