September weather forecast
Oskarshamn, Sweden

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Weather in September

September, the first month of the autumn in Oskarshamn, is still a comfortable month, with an average temperature varying between 10.9°C (51.6°F) and 16.7°C (62.1°F).

Temperature

A subtle shift in Oskarshamn's weather is observed as August turns into September, with the average high temperature reducing from an agreeable 20.8°C (69.4°F) to an enjoyable 16.7°C (62.1°F). Oskarshamn throughout September, records an average low-temperature of 10.9°C (51.6°F).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Oskarshamn, Sweden, in September, during 10.9 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, there are 140.2 rainfall days, and 351mm (13.82") of precipitation is accumulated.

Snowfall

In Oskarshamn, snow does not fall in June through September.

Sea temperature

In Oskarshamn, in September, the average water temperature is 15.8°C (60.4°F).
Note: The majority of individuals find it unpleasurable to swim in 15.8°C (60.4°F). It becomes progressively harder to manage one's breathing as the water temperature falls below 21°C (69.8°F).

Daylight

In September, the average length of the day is 12h and 47min.
On the first day of the month, sunrise is at 05:57 and sunset at 19:51. On the last day of September, sunrise is at 06:56 and sunset at 18:31 CEST.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Oskarshamn, Sweden, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What is the average September temperature in Oskarshamn?

In Oskarshamn, 16.7°C (62.1°F) is the average high-temperature and 10.9°C (51.6°F) is the average low-temperature during September.

What is the average humidity in September in Oskarshamn?

The average relative humidity in September in Oskarshamn is 77%.

How many days does it rain in September in Oskarshamn?

In Oskarshamn, during September, the rain falls for 10.9 days and regularly aggregates up to 20mm (0.79") of precipitation.

When it does not snow in Oskarshamn?

June through September are months without snowfall.

Does it snow in Oskarshamn in September?

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

How cold is the water in September in Oskarshamn?

In September, the average sea temperature is 15.8°C (60.4°F). For swimming, a surface water temperature of 15.8°C (60.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Oskarshamn have in September?

In September, the average day length in Oskarshamn is 12h and 47min.

What time are sunrise and sunset in September in Oskarshamn?

On the first day of September, sunrise is at 05:57 and sunset at 19:51. On the last day of the month, sunrise is at 06:56 and sunset at 18:31 CEST.

How long on average sun shines in September in Oskarshamn?

In September, the average sunshine duration in Oskarshamn is 8.4h.

How high is the UV index in September in Oskarshamn?

In September, the average daily maximum UV index in Oskarshamn, Sweden, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Oskarshamn, Sweden

Average temperature in September - Oskarshamn, Sweden
  • Average high temperature in September: 16.7°C

The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.2°C).

  • Average low temperature in September: 10.9°C

The month with the highest average low temperature is July (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).

Average pressure in September
Oskarshamn, Sweden

Average pressure in September - Oskarshamn, Sweden
  • Average pressure in September: 1014.6mbar

The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1009.7mbar).

Average wind speed in September
Oskarshamn, Sweden

Average wind speed in September - Oskarshamn, Sweden
  • Average wind speed in September: 15.5km/h

The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest months (with the lowest average wind speed) are May and August (13.5km/h).

Average humidity in September
Oskarshamn, Sweden

Average humidity in September - Oskarshamn, Sweden
  • Average humidity in September: 77%

The months with the highest relative humidity are January, February, November and December (86%).
The month with the lowest relative humidity is May (70%).

Average rainfall in September
Oskarshamn, Sweden

Average rainfall in September - Oskarshamn, Sweden
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is November (41mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in September
Oskarshamn, Sweden

Average rainfall days in September - Oskarshamn, Sweden
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is November (14.4 days).
The month with the least rainy days is February (7 days).

Average snowfall in September
Oskarshamn, Sweden

Average snowfall in September - Oskarshamn, Sweden
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (94mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Oskarshamn, Sweden

Average snowfall days in September - Oskarshamn, Sweden
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in September
Oskarshamn, Sweden

Average sea temperature in September - Oskarshamn, Sweden
  • Average sea temperature in September: 15.8°C

The best month for swimming (with the highest average sea temperature) is August (18.6°C).
The coldest month (with the lowest average sea temperature) is March (1.8°C).

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

Average daylight in September / Average sunshine in September - Oskarshamn, Sweden
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in September
Oskarshamn, Sweden

Average sunshine days in September - Oskarshamn, Sweden
  • Average sunshine days in September: 16 days

The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in September
Oskarshamn, Sweden

Average UV index in September - Oskarshamn, Sweden
  • Average UV index in September: 4

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

Average cloud cover in September
Oskarshamn, Sweden

Average cloud cover in September - Oskarshamn, Sweden
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Oskarshamn, Sweden

Average visibility in September - Oskarshamn, Sweden
  • Average visibility in September: 9km

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

Oskarshamn, Sweden

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