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Harjumaa (Tallinn)
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Weather in Harjumaa for September 2027

Your guide to Harjumaa weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Harjumaa at the beginning of September is 20 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.9 °C by the end of September.

    • Rain 🌧️

  • The climate of Harjumaa in September is notably wet, with an average of 12 rainy days, and a total of 67.3 mm of precipitation.

    • More

  • Is September a good time to visit Harjumaa? check out the best time to travel to Harjumaa page.

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/11°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Harjumaa Weather September

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

Temperatures trend during September in Harjumaa

See the weather trend as well as the moving average line

September weather in Harjumaa day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain
Light rain
 19° /12° 2.7 mm 3.9
2 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 19° /12° 4.3 mm 3.8
3 Sept. Light rain shower
Light rain shower
 20° /12° 1.1 mm 3.8
4 Sept. Patchy rain possible
Patchy rain possible
 21° /12° 2.2 mm 3.7
5 Sept. Patchy rain possible
Patchy rain possible
 21° /13° 1 mm 3.6
6 Sept. Sunny
Sunny
 19° /12° 0.2 mm 3.5
7 Sept. Sunny
Sunny
 21° /11° 0.1 mm 3.4
8 Sept. Cloudy
Cloudy
 21° /13° 0.2 mm 3.4
9 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 1.6 mm 3.3
10 Sept. Light rain
Light rain
 20° /13° 3.4 mm 3.2
11 Sept. Light rain
Light rain
 20° /13° 3.8 mm 3.1
12 Sept. Sunny
Sunny
 19° /12° 0.7 mm 3.1
13 Sept. Moderate rain
Moderate rain
 18° /13° 11.5 mm 3
14 Sept. Light rain
Light rain
 18° /11° 5.1 mm 2.9
15 Sept. Cloudy
Cloudy
 16° /10° 0.7 mm 2.8
16 Sept. Patchy rain possible
Patchy rain possible
 19° /11° 1.4 mm 2.8
17 Sept. Light rain
Light rain
 17° /11° 2.5 mm 2.7
18 Sept. Patchy rain possible
Patchy rain possible
 16° /10° 1.6 mm 2.6
19 Sept. Light rain
Light rain
 18° /10° 3.2 mm 2.5
20 Sept. Light drizzle
Light drizzle
 18° /11° 1.9 mm 2.5
21 Sept. Cloudy
Cloudy
 19° /11° 0.7 mm 2.4
22 Sept. Sunny
Sunny
 16° /9° 0.4 mm 2.3
23 Sept. Light rain
Light rain
 15° /8° 2.7 mm 2.3
24 Sept. Patchy light drizzle
Patchy light drizzle
 15° /9° 2.4 mm 2.2
25 Sept. Light rain
Light rain
 15° /9° 2.9 mm 2.1
26 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 1.5 mm 2.1
27 Sept. Light rain
Light rain
 16° /10° 3.7 mm 2
28 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 1.1 mm 1.9
29 Sept. Partly cloudy
Partly cloudy
 14° /8° 0.7 mm 1.9
30 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 14° /7° 2.2 mm 1.8
Next
Important Notice
Our weather forecast for Harjumaa 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 Harjumaa forecast closer to your planned date for the most up-to-date weather information.
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Harjumaa in September - FAQ

What are the expected maximum and minimum temperatures in Harjumaa during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Harjumaa during September?
Moderate rainfall is anticipated in Harjumaa during September, with a total of 67.3 mm spread over approximately 12 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Harjumaa during September?
The average wind speed in Harjumaa during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Harjumaa

Explore the daily rainfall trends and prepare for Harjumaas September weather 💧
Typically, Harjumaa has 12 rainy days in September with a total of 67.3 mm of rainfall.

UV exposure in Harjumaa during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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