September Weather in Johannishus, Sweden

Last updated: August 27, 2025

In September, the average temperature in Johannishus, Sweden hovers around 14°C (58°F), offering a mild climate perfect for outdoor exploration. Expect temperatures that can dip to a chilly 3°C (38°F) and peak at a warm 23°C (74°F). Be prepared for precipitation, with about 60 mm (2.3 in) falling over 11 days on average. The air tends to be quite humid, averaging 81%, making it a great time to enjoy the vibrant local atmosphere!

September Temperature in Johannishus

In September in Johannishus, the average temperature is 14°C (58°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as 3°C (38°F). This pleasant weather makes it an ideal time for travelers to explore the beautiful sights and attractions of Johannishus.

September Weather in Johannishus: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Johannishus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johannishus, September typically has an average temperature of 14°C (58°F), with highs reaching up to 23°C (74°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Johannishus generated using information from the Copernicus Climate Change Service.

September Precipitation in Johannishus

In Johannishus in September, the precipitation amount is 60 mm (2.3 in) spread over a total of 11 days.

September Precipitation Trends in Johannishus

The chart displays monthly precipitation patterns in Johannishus, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Johannishus, September typically receives around 60 mm (2.3 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Johannishus

In Johannishus in September, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

September Average Humidity in Johannishus

This chart illustrates the average monthly humidity levels in Johannishus, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Johannishus is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Johannishus

In Johannishus in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Johannishus.

Maximum UV Index Levels in Johannishus for September

The chart shows the monthly maximum UV Index (UVI) for Johannishus in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Johannishus typically reaches 5, which falls under the moderate exposure category.

Data source: Johannishus September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Johannishus Compares to Other Months

Weather in Johannishus varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Johannishus, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Johannishus, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	50 mm (2.0 inches)	90%	low
February Weather	1°C (35°F)	58 mm (2.3 inches)	89%	low
March Weather	3°C (38°F)	54 mm (2.1 inches)	88%	moderate
April Weather	6°C (43°F)	28 mm (1.1 inches)	82%	moderate
May Weather	11°C (51°F)	43 mm (1.7 inches)	72%	high
June Weather	16°C (62°F)	37 mm (1.5 inches)	68%	high
July Weather	18°C (64°F)	61 mm (2.4 inches)	68%	high
August Weather	17°C (63°F)	67 mm (2.7 inches)	73%	high
September Weather	14°C (58°F)	60 mm (2.3 inches)	81%	moderate
October Weather	10°C (50°F)	70 mm (2.8 inches)	87%	moderate
November Weather	6°C (44°F)	57 mm (2.2 inches)	89%	low
December Weather	3°C (38°F)	69 mm (2.7 inches)	88%	low