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Kalmar (Byxelkrok)
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Weather in Kalmar for September 2025

Your guide to Kalmar weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Kalmar has been nearly identical to the historical average, with a temperature of 17.4 °C (showing only a slight deviation of 0.1 °C).

  • Expect cooler weather in the next days in Kalmar with the forecast suggesting a temperature of 14.8 °C, lower than the historical average.

  • In general, the average temperature in Kalmar at the beginning of September is 17.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.6 °C by the end of September.

    • Rain 🌧️

  • Precipitation in Kalmar during September is a rare event, with an average of fewer than 2 rainy days.

Average dry days
29
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/13°
Temperatures
Average wind speed
31 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Kalmar Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
16°
2
Patchy rain possible
17°
3
Cloudy
17°
4
Partly cloudy
19°
5
Sunny
19°
6
Partly cloudy
18°
7
Sunny
17°
8
Partly cloudy
18°
9
Sunny
18°
10
Partly cloudy
18°
11
Sunny
17°
12
Overcast
17°
13
Overcast
16°
14
Partly cloudy
16°
15
Sunny
16°
16
Sunny
16°
17
Patchy rain possible
17°
18
Patchy rain possible
18°
19
Patchy rain possible
19°
20
Cloudy
18°
21
Patchy rain possible
16°
22
Patchy rain possible
12°
23
Sunny
12°
24
Patchy rain possible
12°
25
Sunny
13°
26
Partly cloudy
15°
27
Partly cloudy
12°
28
Sunny
11°
29
Partly cloudy
16°
30
Partly cloudy
16°

Temperatures trend during September in Kalmar

See the weather trend as well as the moving average line

September weather in Kalmar day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 16° /14° 8.1 mm 4
2 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 0.7 mm 4
3 Sept. Cloudy
Cloudy
 17° /14° 0.2 mm 4
4 Sept. Partly cloudy
Partly cloudy
 19° /16° 0 mm 5
5 Sept. Sunny
Sunny
 19° /16° 0.3 mm 5
6 Sept. Partly cloudy
Partly cloudy
 18° /16° 0 mm 5
7 Sept. Sunny
Sunny
 17° /15° 0 mm 5
8 Sept. Partly cloudy
Partly cloudy
 18° /16° 0 mm 5
9 Sept. Sunny
Sunny
 18° /17° 0.4 mm 5
10 Sept. Partly cloudy
Partly cloudy
 18° /15° 1.3 mm 4
11 Sept. Sunny
Sunny
 17° /14° 12.5 mm 4
12 Sept. Overcast
Overcast
 17° /14° 1 mm 4
13 Sept. Overcast
Overcast
 16° /14° 0.6 mm 4
14 Sept. Partly cloudy
Partly cloudy
 16° /13° 2.1 mm 4
15 Sept. Sunny
Sunny
 16° /13° 0.1 mm 5
16 Sept. Sunny
Sunny
 16° /15° 0.2 mm 5
17 Sept. Patchy rain possible
Patchy rain possible
 17° /15° 1 mm 0.6
18 Sept. Patchy rain possible
Patchy rain possible
 18° /14° 0.5 mm 0.5
19 Sept. Patchy rain possible
Patchy rain possible
 19° /16° 0.7 mm 0.7
20 Sept. Cloudy
Cloudy
 18° /17° 0 mm 0.7
21 Sept. Patchy rain possible
Patchy rain possible
 16° /14° 3.9 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 12° /11° 2.4 mm 3
23 Sept. Sunny
Sunny
 12° /10° 0 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 12° /11° 0.2 mm 3
25 Sept. Sunny
Sunny
 13° /11° 0 mm 4
26 Sept. Partly cloudy
Partly cloudy
 15° /11° 0 mm 4
27 Sept. Partly cloudy
Partly cloudy
 12° /11° 0 mm 4
28 Sept. Sunny
Sunny
 11° /11° 0 mm 4
29 Sept. Partly cloudy
Partly cloudy
 16° /12° 0.1 mm 4
30 Sept. Partly cloudy
Partly cloudy
 16° /12° 0 mm 4
Next
Important Notice
Our weather forecast for Kalmar in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kalmar forecast closer to your planned date for the most up-to-date weather information.
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Kalmar in September - FAQ

What are the expected maximum and minimum temperatures in Kalmar during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kalmar during September?
Moderate rainfall is anticipated in Kalmar during September, with a total of 81.6 mm spread over approximately 1 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Kalmar during September?
The average wind speed in Kalmar during September is 31 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Kalmar

Explore the daily rainfall trends and prepare for Kalmars September weather 💧
Provinces in Kalmar
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Borgholms Kommun
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Byxelkrok
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Location coordinates Where is Kalmar?

Get accurate weather forecasts for Kalmar, located at latitude 57.327 and longitude 17.009. Stay updated with localized weather information tailored for Kalmar.

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