September Weather in Haparanda, Sweden

Last updated: August 27, 2025

In September, the average temperature in Haparanda, Sweden hovers around 10°C (51°F), with a minimum dipping to 0°C (32°F) and a maximum reaching 18°C (65°F). Expect 87 mm (3.4 in) of precipitation spread across 13 days, accompanied by a high average humidity of 89%. Prepare for a cool and damp environment!

September Temperature in Haparanda

In September in Haparanda, the average temperature is 10°C (51°F). The maximum can reach 18°C (65°F) and the minimum can be as low as 0°C (32°F). This mild climate makes it an ideal time for sightseeing and outdoor activities.

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

The chart illustrates September temperature patterns in Haparanda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haparanda, September typically has an average temperature of 10°C (51°F), with highs reaching up to 18°C (65°F) and lows dropping to around 0°C (32°F).

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

September Precipitation in Haparanda

In Haparanda in September, the precipitation amount is 87 mm (3.4 in) spread over 13 days.

September Precipitation Trends in Haparanda

The chart displays monthly precipitation patterns in Haparanda, 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 Haparanda, September typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 13 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 Haparanda

In Haparanda in September humidity is 89%. With an average temperature of 10°C (51°F), this humidity feels like traveling through a thick fog, where the damp air clings to your skin, making the coolness feel even chillier and adding an element of discomfort to your adventures.

September Average Humidity in Haparanda

This chart illustrates the average monthly humidity levels in Haparanda, 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 Haparanda is approximately 89%, 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 Haparanda

In Haparanda in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Haparanda, you can check the information here.

Maximum UV Index Levels in Haparanda for September

The chart shows the monthly maximum UV Index (UVI) for Haparanda 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 Haparanda typically reaches 3, which falls under the moderate exposure category.

Data source: Haparanda 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 Haparanda Compares to Other Months

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

This table compares monthly weather conditions in Haparanda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	51 mm (2.0 inches)	99%	low
February Weather	-8°C (17°F)	48 mm (1.9 inches)	97%	low
March Weather	-5°C (24°F)	48 mm (1.9 inches)	93%	low
April Weather	-1°C (31°F)	37 mm (1.4 inches)	86%	moderate
May Weather	5°C (42°F)	52 mm (2.0 inches)	80%	moderate
June Weather	13°C (55°F)	58 mm (2.3 inches)	76%	high
July Weather	17°C (62°F)	61 mm (2.4 inches)	79%	high
August Weather	15°C (59°F)	91 mm (3.6 inches)	83%	moderate
September Weather	10°C (51°F)	87 mm (3.4 inches)	89%	moderate
October Weather	4°C (40°F)	109 mm (4.3 inches)	94%	low
November Weather	0°C (32°F)	82 mm (3.2 inches)	94%	low
December Weather	-4°C (25°F)	73 mm (2.9 inches)	98%	low