Viljandi monthly weather forecast

Monthly weather forecast for Viljandi. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

31 August 2026, Monday
+15°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
15.1
92%
1001
01:00
+17°C
11.5
96%
1001
02:00
+17°C
10.8
95%
1001
03:00
+17°C
12.6
93%
1000
04:00
+17°C
13
93%
1000
05:00
+17°C
11.9
92%
1000
06:00
+16°C
15.1
95%
999
07:00
+16°C
15.8
95%
999
08:00
+17°C
16.2
94%
999
09:00
+17°C
19.1
93%
999
10:00
+18°C
18.7
91%
999
11:00
+18°C
19.1
90%
999
12:00
+18°C
20.5
88%
999
13:00
+18°C
18.4
93%
999
14:00
+19°C
17.6
90%
1000
15:00
+19°C
20.5
86%
1000
16:00
+19°C
17.3
86%
1000
17:00
+19°C
15.8
84%
1000
18:00
+19°C
15.1
85%
1000
19:00
+18°C
16.2
84%
1001
20:00
+17°C
11.5
86%
1001
21:00
+16°C
6.5
91%
1001
22:00
+15°C
4.7
94%
1001
23:00
+15°C
4.3
96%
1001
01 September 2026, Tuesday
+14°C / +21°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
3.6
97%
1001
01:00
+14°C
4
97%
1001
02:00
+14°C
4.7
96%
1001
03:00
+14°C
5
97%
1000
04:00
+14°C
5.4
98%
1000
05:00
+14°C
5.8
98%
1000
06:00
+14°C
5.8
98%
1001
07:00
+14°C
6.1
96%
1000
08:00
+15°C
7.2
94%
1000
09:00
+16°C
7.9
89%
1000
10:00
+17°C
6.8
83%
1000
11:00
+19°C
9
78%
1000
12:00
+20°C
5.8
77%
1000
13:00
+20°C
6.5
75%
1000
14:00
+21°C
6.1
73%
1000
15:00
+21°C
6.5
73%
1000
16:00
+21°C
4
71%
1000
17:00
+21°C
5.4
73%
1000
18:00
+20°C
3.6
74%
999
19:00
+20°C
2.2
78%
999
20:00
+19°C
2.5
88%
999
21:00
+18°C
1.8
95%
999
22:00
+17°C
5
95%
998
23:00
+17°C
7.6
97%
999
02 September 2026, Wednesday
+14°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
5
97%
998
01:00
+16°C
8.6
98%
998
02:00
+15°C
6.8
99%
998
03:00
+15°C
8.3
98%
998
04:00
+15°C
6.8
97%
998
05:00
+15°C
10.1
99%
998
06:00
+15°C
10.1
99%
999
07:00
+15°C
7.9
99%
999
08:00
+15°C
9
99%
999
09:00
+16°C
8.6
94%
1000
10:00
+16°C
11.2
90%
1000
11:00
+17°C
10.1
86%
1000
12:00
+19°C
9.7
79%
1000
13:00
+19°C
10.4
78%
1000
14:00
+19°C
9
77%
1000
15:00
+19°C
14
78%
1000
16:00
+19°C
10.1
92%
1001
17:00
+19°C
10.1
91%
1001
18:00
+19°C
11.5
86%
1001
19:00
+18°C
11.5
83%
1001
20:00
+16°C
9.7
89%
1001
21:00
+15°C
11.9
95%
1000
22:00
+14°C
12.9
97%
1000
23:00
+14°C
12.6
97%
1000
03 September 2026, Thursday
+12°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
11.8
98%
1000
01:00
+14°C
11.1
98%
1000
02:00
+13°C
10.3
98%
1000
03:00
+13°C
11.6
98%
1000
04:00
+13°C
14.3
98%
1000
05:00
+13°C
14
99%
1000
06:00
+13°C
12.5
99%
1000
07:00
+14°C
14.6
99%
1000
08:00
+14°C
15
99%
1000
09:00
+15°C
13.3
98%
1000
10:00
+15°C
16.5
95%
1000
11:00
+16°C
11.5
93%
1000
12:00
+15°C
14
93%
1000
13:00
+17°C
18.9
78%
1000
14:00
+17°C
20.1
69%
1000
15:00
+18°C
21.6
55%
1000
16:00
+18°C
22.4
54%
1000
17:00
+17°C
21.9
55%
1000
18:00
+16°C
20.4
59%
1000
19:00
+15°C
17.7
65%
999
20:00
+14°C
12.3
72%
999
21:00
+13°C
10.2
80%
999
22:00
+12°C
9.3
84%
999
23:00
+12°C
9
88%
999
04 September 2026, Friday
+12°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
8.7
91%
998
01:00
+12°C
7.7
94%
998
02:00
+12°C
7.7
95%
997
03:00
+12°C
8.7
97%
997
04:00
+12°C
10
98%
996
05:00
+12°C
11.8
99%
995
06:00
+12°C
12.7
99%
994
07:00
+13°C
12.2
100%
994
08:00
+13°C
11.9
100%
994
09:00
+14°C
11.6
98%
994
10:00
+15°C
9.6
90%
994
11:00
+16°C
8
80%
994
12:00
+17°C
8.8
71%
994
13:00
+17°C
9.7
62%
994
14:00
+18°C
11.2
53%
994
15:00
+18°C
12.6
49%
994
16:00
+18°C
13.6
50%
994
17:00
+17°C
14.4
55%
993
18:00
+16°C
14.4
60%
993
19:00
+15°C
12.8
65%
993
20:00
+14°C
10.3
71%
992
21:00
+13°C
8.6
76%
992
22:00
+13°C
7.9
79%
992
23:00
+12°C
7.6
79%
991
05 September 2026, Saturday
+11°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
7.1
81%
990
01:00
+12°C
6.1
85%
990
02:00
+11°C
5.1
91%
989
03:00
+11°C
4.5
96%
989
04:00
+11°C
5.1
98%
989
05:00
+11°C
7.2
98%
989
06:00
+11°C
9.1
98%
989
07:00
+11°C
9.4
99%
989
08:00
+11°C
9.1
100%
990
09:00
+12°C
9.3
97%
990
10:00
+13°C
10.7
89%
990
11:00
+14°C
13.4
79%
991
12:00
+16°C
16.1
70%
991
13:00
+17°C
16.9
61%
991
14:00
+17°C
16.8
54%
992
15:00
+18°C
16.5
50%
992
16:00
+17°C
16.6
51%
993
17:00
+17°C
16.7
55%
993
18:00
+16°C
16.6
59%
994
19:00
+15°C
15.5
64%
994
20:00
+13°C
14.2
69%
994
21:00
+12°C
13.2
74%
994
22:00
+12°C
13.3
78%
994
23:00
+11°C
14.3
80%
994
06 September 2026, Sunday
+11°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
14.7
82%
994
01:00
+11°C
13.2
83%
995
02:00
+11°C
13.2
85%
995
03:00
+11°C
13.2
86%
995
04:00
+11°C
13
86%
995
05:00
+11°C
12.6
86%
995
06:00
+11°C
12.4
86%
995
07:00
+12°C
12.2
85%
995
08:00
+13°C
12.1
84%
996
09:00
+13°C
12.4
83%
996
10:00
+14°C
13.2
80%
996
11:00
+15°C
14.6
77%
996
12:00
+15°C
16.2
73%
997
13:00
+16°C
17.9
70%
997
14:00
+17°C
19.2
68%
997
15:00
+17°C
19.8
68%
997
16:00
+16°C
19.4
70%
998
17:00
+15°C
18.4
74%
998
18:00
+14°C
17.2
80%
998
19:00
+13°C
15.8
86%
998
20:00
+12°C
15
92%
999
21:00
+11°C
14.3
96%
999
22:00
+11°C
14
99%
999
23:00
+11°C
13.9
100%
999
07 September 2026, Monday
+10°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
14.1
100%
999
01:00
+10°C
14
99%
999
02:00
+10°C
13.9
99%
999
03:00
+10°C
13.6
98%
999
04:00
+10°C
12.7
99%
999
05:00
+10°C
11.4
100%
1000
06:00
+10°C
9.8
100%
1000
07:00
+10°C
8.5
100%
1000
08:00
+11°C
7.4
99%
1000
09:00
+11°C
7.1
95%
1001
10:00
+12°C
7.6
88%
1001
11:00
+13°C
8.9
78%
1000
12:00
+15°C
10.5
68%
1000
13:00
+16°C
12.1
60%
1000
14:00
+17°C
13.4
54%
1000
15:00
+17°C
13.9
52%
1000
16:00
+17°C
13.7
53%
999
17:00
+16°C
12.8
58%
999
18:00
+15°C
11.7
64%
999
19:00
+14°C
10.5
72%
999
20:00
+13°C
9.3
81%
998
21:00
+12°C
8.6
87%
998
22:00
+12°C
8
91%
998
23:00
+11°C
7.6
93%
998
08 September 2026, Tuesday
+10°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
7.4
94%
998
01:00
+11°C
7.5
95%
998
02:00
+11°C
7.8
95%
997
03:00
+11°C
8
96%
997
04:00
+11°C
8.3
97%
997
05:00
+11°C
8.4
98%
998
06:00
+11°C
8.5
99%
998
07:00
+11°C
8.7
99%
998
08:00
+11°C
9.2
97%
998
09:00
+12°C
9.8
94%
998
10:00
+12°C
10.8
87%
998
11:00
+13°C
12.4
78%
999
12:00
+15°C
14.1
68%
999
13:00
+16°C
15.8
61%
999
14:00
+17°C
17.1
55%
999
15:00
+17°C
17.6
53%
1000
16:00
+17°C
17.3
53%
1000
17:00
+16°C
16.1
56%
1000
18:00
+15°C
14.8
61%
1000
19:00
+14°C
13.3
67%
1000
20:00
+13°C
12.1
73%
1000
21:00
+12°C
11.3
78%
1000
22:00
+11°C
10.9
82%
1000
23:00
+10°C
10.6
86%
1000
09 September 2026, Wednesday
+9°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
10.4
89%
1000
01:00
+9°C
10.3
92%
1000
02:00
+9°C
9.9
94%
1000
03:00
+9°C
9.2
96%
1000
04:00
+9°C
8.3
97%
1000
05:00
+9°C
7
98%
1000
06:00
+10°C
5.6
98%
1000
07:00
+11°C
4.4
97%
999
08:00
+11°C
3.7
95%
999
09:00
+12°C
3.7
91%
999
10:00
+13°C
4.7
86%
999
11:00
+14°C
6
78%
998
12:00
+15°C
7.8
70%
998
13:00
+16°C
9.6
64%
998
14:00
+17°C
11
59%
997
15:00
+17°C
11.9
58%
997
16:00
+17°C
12.3
60%
996
17:00
+16°C
12.4
66%
996
18:00
+15°C
12.5
73%
995
19:00
+14°C
12.7
83%
994
20:00
+14°C
12.9
92%
994
21:00
+13°C
13.1
98%
993
22:00
+13°C
13.2
100%
993
23:00
+13°C
13.6
100%
992
10 September 2026, Thursday
+13°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
14.4
100%
992
01:00
+14°C
15.6
100%
991
02:00
+14°C
16.8
100%
991
03:00
+14°C
17.8
99%
991
04:00
+15°C
18.1
99%
991
05:00
+15°C
18.2
100%
991
06:00
+15°C
18.3
100%
991
07:00
+15°C
18.7
100%
992
08:00
+15°C
19.1
100%
992
09:00
+15°C
19.6
98%
993
10:00
+16°C
20
92%
993
11:00
+17°C
20.2
85%
994
12:00
+17°C
20.1
77%
994
13:00
+18°C
20
70%
995
14:00
+19°C
19.4
65%
995
15:00
+19°C
18.7
63%
996
16:00
+19°C
17.4
64%
996
17:00
+18°C
15.5
67%
996
18:00
+17°C
13.9
73%
996
19:00
+16°C
12.7
79%
996
20:00
+15°C
12.2
85%
995
21:00
+14°C
12
89%
995
22:00
+14°C
12.2
90%
995
23:00
+14°C
12.6
90%
995
11 September 2026, Friday
+12°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
13.2
89%
995
01:00
+14°C
14.1
87%
995
02:00
+14°C
15.1
87%
995
03:00
+14°C
15.7
86%
995
04:00
+14°C
16
87%
995
05:00
+14°C
16.4
88%
995
06:00
+15°C
16.6
90%
994
07:00
+15°C
16.7
91%
994
08:00
+15°C
17
91%
994
09:00
+16°C
17.3
89%
994
10:00
+16°C
18
85%
994
11:00
+17°C
19
79%
994
12:00
+17°C
20.1
73%
995
13:00
+18°C
21.2
67%
995
14:00
+18°C
22.1
62%
995
15:00
+18°C
22.5
60%
995
16:00
+17°C
22.3
60%
995
17:00
+17°C
21.6
61%
995
18:00
+16°C
20.6
64%
996
19:00
+15°C
19.3
67%
996
20:00
+14°C
18.2
70%
996
21:00
+13°C
17.1
73%
996
22:00
+13°C
15.9
76%
997
23:00
+12°C
14.5
79%
997
12 September 2026, Saturday
+10°C / +16°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
13.2
83%
998
01:00
+11°C
11.8
87%
998
02:00
+10°C
10.5
89%
998
03:00
+10°C
9.7
91%
999
04:00
+10°C
9.1
92%
999
05:00
+10°C
9
92%
999
06:00
+11°C
9
91%
1000
07:00
+12°C
9.4
90%
1000
08:00
+12°C
9.6
88%
1000
09:00
+13°C
9.6
86%
1000
10:00
+14°C
9.4
82%
1000
11:00
+14°C
9.4
77%
1000
12:00
+15°C
9.2
71%
1000
13:00
+16°C
9.1
66%
1000
14:00
+16°C
8.7
63%
1000
15:00
+16°C
8.1
62%
1000
16:00
+16°C
7.1
64%
1000
17:00
+16°C
5.7
69%
1000
18:00
+15°C
4.2
75%
1000
19:00
+14°C
3.2
83%
1000
20:00
+13°C
3.1
89%
1000
21:00
+12°C
3.5
95%
1000
22:00
+12°C
4
98%
1000
23:00
+11°C
4.6
99%
1000
13 September 2026, Sunday
+10°C / +16°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
5.2
100%
1000
01:00
+10°C
6.3
99%
999
02:00
+10°C
7.3
99%
1000
03:00
+10°C
8
99%
1000
04:00
+10°C
8.6
100%
1000
05:00
+10°C
8.8
100%
1001
06:00
+10°C
9.2
100%
1001
07:00
+10°C
9.6
100%
1002
08:00
+10°C
10.1
100%
1002
09:00
+11°C
10.7
97%
1003
10:00
+12°C
11.6
90%
1004
11:00
+13°C
12.9
80%
1004
12:00
+14°C
14
71%
1005
13:00
+15°C
15.2
63%
1005
14:00
+16°C
16
57%
1006
15:00
+16°C
16.2
54%
1006
16:00
+16°C
15.7
54%
1007
17:00
+15°C
14.8
57%
1007
18:00
+14°C
13.6
61%
1008
19:00
+13°C
12.5
67%
1008
20:00
+12°C
11.8
72%
1009
21:00
+11°C
11.4
77%
1009
22:00
+10°C
11.2
80%
1009
23:00
+10°C
11.1
82%
1010


Climate Characteristics of Viljandi

General Overview

Viljandi is located in southern Estonia in a hilly region known for its green and rural landscapes. Its climate is temperate-continental, influenced by its distance from the sea and the local topography of the lake valley. The surrounding hills and forests often "trap" moisture, creating a very pleasant micro-climate in summer but snowy and quite cold conditions in winter. Viljandi is famous for its vibrant summers and music festivals held under clear skies.

Temperatures and Daily Variations

In summer, daytime temperatures average between 21°C and 24°C (70-75°F), and the air around the lake feels fresh and pleasant. In winter, the average daytime temperature is around -2°C (28°F), dropping to -10°C (14°F) or lower at night. Due to its southern location, winter here is more stable than in Tallinn, with fewer thaw days and snow staying on the ground longer.

Precipitation Seasons (June-August)

Peak rainfall occurs during the summer months, usually as short tropical-like afternoon showers. The rain keeps the region very green year-round. In winter, snow piles up to a good height and covers the castle ruins and hills, making the area a popular spot for cross-country skiing and snowy nature walks.

Dry and Comfortable Seasons (May and September)

May is the month of bloom, where the trees and bushes around the lake fill with fresh green. September offers relatively stable weather with crisp days and clear skies. It is an ideal time to photograph the golden autumn foliage reflecting in the lake's quiet waters.

Weather in Viljandi by Month

January

The coldest month. -3°C (27°F) daytime and -9°C (16°F) at night. The city is usually completely snowy and the lake is mostly frozen. The air is dry and freezing, and the view from the castle ruins toward the white lake is one of the most beautiful in Estonia.

February

Deep, snowy winter. -2°C (28°F) daytime. Snow depth reaches its maximum this month. Days lengthen slowly, but continental winds keep temperatures freezing.

March

Start of the thaw. 3°C (37°F) daytime. The sun begins to warm and the lake ice starts to crack. Nights remain very cold, but afternoons begin to feel spring-like and bright.

April

Spring awakens rapidly. 10°C (50°F) daytime. Snow disappears and the ground dries. Weather is volatile—late snow flurries can alternate with warm, sunny days encouraging the first blooms.

May

The most pleasant month for visiting. 17°C (63°F) daytime. Clear skies and peak blooming. The air is crisp and humidity is low, allowing for very comfortable walks around the lake and within the Old Town.

June

Start of summer and "White Nights." 21°C (70°F) daytime. The sun barely sets, and the city atmosphere is festive. A warm and pleasant month with many daylight hours for outdoor activities.

July

The warmest month. 23°C (73°F) daytime and 13°C (55°F) at night. Very warm and pleasant days. This is the peak time for the city's famous folk festival, usually held under clear summer skies.

August

Continuation of refreshing summer. 22°C (72°F) daytime. Nights start to cool slightly more toward 12°C (54°F). Rainfall begins to increase, and morning air over the lake becomes misty and picturesque.

September

Golden and clear autumn. 16°C (61°F) daytime. Skies return to deep blue. Temperatures drop but the air is very pleasant for hiking. Autumn colors appear in the forests around the lake in full glory.

October

Significant cooling to 9°C (48°F) daytime. Days shorten significantly and become greyer and rainier. Winds strengthen and the city takes on a wintry, melancholic, and magical look.

November

A dark and chilly month. 3°C (37°F) daytime. Skies are covered in heavy clouds most of the time. Chance of first snow mixed with rain, and the air feels wet and very cold due to high humidity.

December

Winter officially returns. -1°C (30°F) daytime and -5°C (23°F) at night. The city is decorated with Christmas lights reflecting in the fresh snow. The air is freezing and the atmosphere is festive and quiet around the castle ruins.

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