Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's comfortable 18.8°C (65.8°F) to a mild 15.5°C (59.9°F). The nighttime temperature demonstrates a marginal decline, averaging at 13.3°C (55.9°F) during September.Humidity
In September, the average relative humidity in Katthammarsvik is 78%.Rainfall
In Katthammarsvik, during September, the rain falls for 11.1 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, in Katthammarsvik, there are 128.4 rainfall days, and 290mm (11.42") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Katthammarsvik, the average length of the day in September is 12h and 47min.On the first day of September in Katthammarsvik, sunrise is at 05:47 and sunset at 19:41. On the last day of the month, sunrise is at 06:47 and sunset at 18:21 CEST.
Sunshine
In September, the average sunshine in Katthammarsvik is 8.4h.UV index
In Katthammarsvik, Sweden, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Katthammarsvik?
What is the average humidity in September in Katthammarsvik?
How much does it rain in Katthammarsvik in September?
When it does not snow in Katthammarsvik?
What is the average length of the day in September in Katthammarsvik?
When are sunrise and sunset in September in Katthammarsvik?
How many hours of sunshine does Katthammarsvik have in September?
What is the UV index intensity in September in Katthammarsvik?
Average temperature in September
Katthammarsvik, Sweden
- Average high temperature in September: 15.5°C
The warmest months (with the highest average high temperature) are July and August (18.8°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 13.3°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).
Average pressure in September
Katthammarsvik, Sweden
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).
Average wind speed in September
Katthammarsvik, Sweden
- Average wind speed in September: 22.3km/h
The windiest month (with the highest average wind speed) is December (27.4km/h).
The calmest month (with the lowest average wind speed) is May (17.8km/h).
Average humidity in September
Katthammarsvik, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is November (84%).
The months with the lowest relative humidity are June and August (77%).
Average rainfall in September
Katthammarsvik, Sweden
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (33mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Katthammarsvik, Sweden
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is November (14 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Katthammarsvik, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (46mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Katthammarsvik, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Katthammarsvik, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 2h and 48min).
Average sunshine days in September
Katthammarsvik, Sweden
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is April (20.3 days).
The month with the least sunshine days is December (8.1 days).
Average UV index in September
Katthammarsvik, Sweden
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Katthammarsvik, Sweden
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in September
Katthammarsvik, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
