Parnu monthly weather forecast

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

31 August 2026, Monday
+17°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+18°C
25.9
89%
1008
01:00
+18°C
21.6
84%
1008
02:00
+18°C
24.5
85%
1008
03:00
+18°C
28.8
85%
1008
04:00
+18°C
33.1
88%
1007
05:00
+18°C
30.6
90%
1007
06:00
+17°C
27
90%
1006
07:00
+18°C
27.7
92%
1006
08:00
+18°C
31
92%
1006
09:00
+18°C
37.1
93%
1006
10:00
+18°C
37.8
93%
1006
11:00
+18°C
36.7
91%
1006
12:00
+19°C
34.2
92%
1007
13:00
+19°C
33.5
91%
1007
14:00
+19°C
31.7
90%
1007
15:00
+19°C
29.5
89%
1008
16:00
+19°C
24.5
91%
1008
17:00
+19°C
19.8
89%
1008
18:00
+19°C
24.1
81%
1009
19:00
+18°C
20.5
81%
1009
20:00
+18°C
16.6
81%
1009
21:00
+18°C
13.7
81%
1009
22:00
+17°C
11.5
83%
1009
23:00
+17°C
8.6
84%
1009
01 September 2026, Tuesday
+16°C / +21°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
7.6
89%
1009
01:00
+16°C
10.1
91%
1009
02:00
+16°C
9
86%
1009
03:00
+16°C
9.4
85%
1008
04:00
+17°C
10.1
83%
1008
05:00
+17°C
13.7
85%
1008
06:00
+17°C
13.3
88%
1008
07:00
+17°C
12.2
87%
1008
08:00
+17°C
13.7
89%
1008
09:00
+18°C
12.2
90%
1008
10:00
+18°C
12.6
86%
1008
11:00
+19°C
13.7
87%
1008
12:00
+19°C
13
87%
1008
13:00
+20°C
12.6
86%
1008
14:00
+21°C
11.5
85%
1008
15:00
+21°C
9.7
82%
1008
16:00
+21°C
8.6
82%
1008
17:00
+21°C
6.8
78%
1007
18:00
+21°C
5.4
75%
1007
19:00
+20°C
5.4
79%
1007
20:00
+19°C
3.6
84%
1007
21:00
+19°C
2.9
87%
1007
22:00
+18°C
6.1
90%
1007
23:00
+17°C
6.1
93%
1007
02 September 2026, Wednesday
+15°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
8.3
94%
1007
01:00
+16°C
7.9
96%
1007
02:00
+16°C
7.9
98%
1007
03:00
+16°C
5.8
99%
1007
04:00
+16°C
5.4
99%
1007
05:00
+15°C
6.5
98%
1007
06:00
+15°C
6.1
99%
1007
07:00
+15°C
1.8
98%
1007
08:00
+16°C
1.1
94%
1008
09:00
+17°C
2.9
92%
1008
10:00
+18°C
6.5
92%
1008
11:00
+19°C
6.8
92%
1008
12:00
+19°C
11.9
88%
1008
13:00
+20°C
10.8
82%
1008
14:00
+20°C
11.9
72%
1009
15:00
+20°C
15.1
71%
1009
16:00
+20°C
12.6
76%
1009
17:00
+20°C
11.2
76%
1009
18:00
+20°C
12.2
75%
1009
19:00
+19°C
11.5
79%
1009
20:00
+17°C
13.3
88%
1009
21:00
+17°C
14.7
92%
1009
22:00
+16°C
15.9
90%
1009
23:00
+16°C
15.4
91%
1009
03 September 2026, Thursday
+15°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
15.5
86%
1009
01:00
+16°C
15.8
84%
1008
02:00
+16°C
16.7
85%
1008
03:00
+17°C
16.8
84%
1008
04:00
+16°C
18.9
86%
1008
05:00
+15°C
16.9
96%
1008
06:00
+15°C
16.4
94%
1007
07:00
+15°C
17.8
93%
1008
08:00
+16°C
15.5
94%
1008
09:00
+16°C
15.1
90%
1008
10:00
+16°C
16.5
78%
1008
11:00
+17°C
19.6
66%
1008
12:00
+18°C
20.3
62%
1008
13:00
+18°C
23.1
61%
1008
14:00
+17°C
25.4
61%
1008
15:00
+17°C
26.6
60%
1008
16:00
+17°C
26.6
59%
1008
17:00
+17°C
25.5
61%
1008
18:00
+16°C
24.7
63%
1008
19:00
+16°C
24
63%
1008
20:00
+16°C
22
63%
1007
21:00
+16°C
17.9
63%
1007
22:00
+16°C
14.2
68%
1007
23:00
+15°C
10.5
75%
1006
04 September 2026, Friday
+13°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
7.7
81%
1006
01:00
+14°C
6.4
87%
1005
02:00
+14°C
6.8
92%
1005
03:00
+14°C
7
96%
1004
04:00
+14°C
4.8
97%
1003
05:00
+14°C
1.6
97%
1003
06:00
+14°C
3.7
96%
1003
07:00
+13°C
5.7
98%
1002
08:00
+13°C
7
100%
1002
09:00
+13°C
7.5
97%
1002
10:00
+14°C
7.5
86%
1002
11:00
+16°C
7.3
72%
1003
12:00
+17°C
8.2
63%
1003
13:00
+17°C
10.4
58%
1003
14:00
+18°C
13.5
56%
1002
15:00
+18°C
16.3
56%
1002
16:00
+17°C
17.8
56%
1002
17:00
+17°C
18.2
57%
1001
18:00
+17°C
17.6
59%
1001
19:00
+16°C
15.2
62%
1001
20:00
+16°C
11.5
66%
1000
21:00
+15°C
8
70%
1000
22:00
+15°C
4.9
72%
1000
23:00
+15°C
1.9
74%
999
05 September 2026, Saturday
+12°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
0.5
76%
998
01:00
+14°C
0.3
79%
998
02:00
+14°C
1.7
82%
998
03:00
+13°C
3.7
86%
997
04:00
+13°C
6.9
89%
997
05:00
+13°C
10.5
93%
997
06:00
+12°C
13.1
95%
998
07:00
+12°C
13.6
96%
998
08:00
+13°C
12.9
96%
998
09:00
+13°C
12.6
92%
998
10:00
+14°C
13.1
82%
999
11:00
+15°C
14.4
71%
999
12:00
+16°C
15.5
62%
1000
13:00
+17°C
16
57%
1000
14:00
+17°C
16.4
53%
1001
15:00
+18°C
16.6
51%
1001
16:00
+17°C
16.8
53%
1002
17:00
+17°C
16.8
57%
1002
18:00
+16°C
16.8
61%
1002
19:00
+16°C
16.6
66%
1003
20:00
+15°C
16.5
71%
1003
21:00
+14°C
16.5
74%
1003
22:00
+14°C
16.4
77%
1003
23:00
+14°C
16.3
78%
1003
06 September 2026, Sunday
+13°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
16.2
78%
1003
01:00
+13°C
16.6
80%
1003
02:00
+13°C
16.6
80%
1003
03:00
+13°C
16.5
80%
1003
04:00
+13°C
16.2
81%
1004
05:00
+14°C
15.7
80%
1004
06:00
+14°C
15.1
80%
1004
07:00
+14°C
14.6
80%
1004
08:00
+14°C
14.3
79%
1005
09:00
+14°C
14.2
79%
1005
10:00
+15°C
14.5
80%
1005
11:00
+15°C
15
80%
1005
12:00
+15°C
15.8
81%
1006
13:00
+15°C
16.7
81%
1006
14:00
+15°C
17.3
82%
1006
15:00
+15°C
17.7
83%
1006
16:00
+15°C
17.3
84%
1007
17:00
+14°C
16.4
86%
1007
18:00
+14°C
15.3
87%
1007
19:00
+14°C
14.2
89%
1007
20:00
+13°C
13.3
90%
1008
21:00
+13°C
12.8
91%
1008
22:00
+13°C
12.8
92%
1008
23:00
+13°C
12.9
92%
1008
07 September 2026, Monday
+12°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
13.3
92%
1008
01:00
+12°C
13.6
92%
1008
02:00
+12°C
13.7
92%
1008
03:00
+12°C
13.4
92%
1008
04:00
+12°C
12.2
91%
1008
05:00
+12°C
10.5
90%
1008
06:00
+12°C
8.4
89%
1009
07:00
+12°C
6.7
88%
1009
08:00
+13°C
5.3
86%
1009
09:00
+13°C
4.4
84%
1009
10:00
+14°C
5.1
81%
1009
11:00
+14°C
7
76%
1009
12:00
+15°C
9.8
72%
1009
13:00
+16°C
12.6
68%
1009
14:00
+16°C
14.7
65%
1008
15:00
+17°C
15.7
64%
1008
16:00
+17°C
15.1
66%
1008
17:00
+16°C
13.4
69%
1008
18:00
+16°C
11.2
73%
1007
19:00
+15°C
8.7
78%
1007
20:00
+14°C
6.7
83%
1007
21:00
+14°C
5.3
87%
1007
22:00
+14°C
4.8
89%
1006
23:00
+13°C
4.8
90%
1006
08 September 2026, Tuesday
+12°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
5.3
91%
1006
01:00
+13°C
6.2
91%
1006
02:00
+12°C
6.9
91%
1006
03:00
+12°C
7.6
91%
1006
04:00
+12°C
8.1
92%
1006
05:00
+12°C
8.8
93%
1006
06:00
+12°C
9.2
94%
1007
07:00
+12°C
9.8
94%
1007
08:00
+12°C
10.5
93%
1007
09:00
+13°C
11.3
90%
1007
10:00
+13°C
12.3
84%
1007
11:00
+14°C
13.6
76%
1008
12:00
+15°C
15.2
68%
1008
13:00
+16°C
16.4
61%
1008
14:00
+17°C
17.3
56%
1008
15:00
+17°C
17.6
54%
1009
16:00
+17°C
17.1
55%
1009
17:00
+16°C
15.8
58%
1009
18:00
+16°C
14.3
63%
1009
19:00
+15°C
12.7
68%
1009
20:00
+14°C
11.3
75%
1009
21:00
+13°C
10.2
79%
1009
22:00
+13°C
9.8
82%
1009
23:00
+12°C
9.6
85%
1009
09 September 2026, Wednesday
+12°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
9.6
88%
1009
01:00
+12°C
9.7
89%
1009
02:00
+12°C
9.4
91%
1009
03:00
+12°C
8.5
91%
1009
04:00
+12°C
7.1
91%
1008
05:00
+12°C
5.2
91%
1008
06:00
+13°C
2.8
89%
1008
07:00
+13°C
0.7
87%
1008
08:00
+14°C
1.5
85%
1007
09:00
+14°C
3.3
83%
1007
10:00
+15°C
4.8
79%
1007
11:00
+15°C
6.7
75%
1006
12:00
+16°C
8.8
70%
1006
13:00
+16°C
10.8
66%
1005
14:00
+17°C
12.7
64%
1005
15:00
+17°C
14.2
63%
1004
16:00
+17°C
15.2
66%
1004
17:00
+16°C
16.2
71%
1003
18:00
+16°C
17.1
77%
1003
19:00
+15°C
18
85%
1002
20:00
+14°C
18.6
92%
1001
21:00
+14°C
18.6
96%
1001
22:00
+14°C
18.4
99%
1000
23:00
+15°C
18.5
99%
999
10 September 2026, Thursday
+15°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
19.8
98%
999
01:00
+16°C
22
97%
998
02:00
+16°C
24.5
95%
998
03:00
+16°C
25.9
94%
998
04:00
+17°C
25.8
93%
998
05:00
+17°C
24.5
92%
999
06:00
+16°C
23
91%
999
07:00
+16°C
21.6
90%
1000
08:00
+16°C
20.8
89%
1000
09:00
+16°C
20.7
87%
1001
10:00
+17°C
20.9
84%
1001
11:00
+17°C
21.5
80%
1002
12:00
+17°C
22.4
76%
1002
13:00
+18°C
23.4
73%
1003
14:00
+18°C
24.4
70%
1003
15:00
+18°C
24.9
69%
1004
16:00
+18°C
24.8
68%
1004
17:00
+18°C
24.1
69%
1004
18:00
+18°C
23.4
70%
1003
19:00
+18°C
22.7
72%
1003
20:00
+18°C
22.3
73%
1003
21:00
+18°C
22.1
75%
1003
22:00
+17°C
22.2
77%
1003
23:00
+17°C
22.7
79%
1002
11 September 2026, Friday
+14°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
23.4
81%
1002
01:00
+17°C
24.5
83%
1002
02:00
+17°C
25.6
85%
1002
03:00
+16°C
26.3
86%
1002
04:00
+16°C
26.5
86%
1002
05:00
+16°C
26
85%
1002
06:00
+16°C
25.3
85%
1002
07:00
+16°C
24.6
83%
1002
08:00
+16°C
24.1
82%
1002
09:00
+17°C
24
81%
1002
10:00
+17°C
24.5
79%
1002
11:00
+17°C
25.5
77%
1002
12:00
+17°C
26.8
75%
1003
13:00
+17°C
27.9
73%
1003
14:00
+17°C
28.6
71%
1003
15:00
+17°C
28.6
70%
1003
16:00
+17°C
27.9
69%
1003
17:00
+17°C
26.9
69%
1004
18:00
+16°C
25.5
68%
1004
19:00
+16°C
24.3
68%
1004
20:00
+15°C
22.9
69%
1005
21:00
+15°C
21.9
70%
1005
22:00
+14°C
20.5
72%
1005
23:00
+14°C
18.7
74%
1006
12 September 2026, Saturday
+12°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
16.7
78%
1006
01:00
+13°C
14.9
81%
1006
02:00
+13°C
13.3
84%
1007
03:00
+13°C
12.1
85%
1007
04:00
+13°C
11.5
86%
1007
05:00
+13°C
11.4
86%
1008
06:00
+14°C
11.4
85%
1008
07:00
+14°C
11.5
83%
1008
08:00
+15°C
11.5
82%
1008
09:00
+15°C
11.2
80%
1008
10:00
+16°C
10.4
77%
1009
11:00
+16°C
9.2
74%
1009
12:00
+16°C
8.2
70%
1009
13:00
+16°C
7
67%
1009
14:00
+17°C
5.9
65%
1009
15:00
+17°C
5.1
64%
1009
16:00
+16°C
4.8
65%
1009
17:00
+16°C
5.6
67%
1008
18:00
+15°C
7.4
69%
1008
19:00
+15°C
9.5
73%
1008
20:00
+14°C
11.4
76%
1008
21:00
+13°C
12.6
79%
1008
22:00
+13°C
12.8
81%
1008
23:00
+12°C
12.5
83%
1008
13 September 2026, Sunday
+11°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
11.8
85%
1008
01:00
+12°C
10.9
87%
1008
02:00
+11°C
10.4
88%
1008
03:00
+11°C
10.2
89%
1009
04:00
+11°C
10.3
89%
1009
05:00
+11°C
10.7
90%
1010
06:00
+11°C
11.4
90%
1010
07:00
+11°C
12
90%
1011
08:00
+12°C
12.6
88%
1012
09:00
+12°C
13.2
85%
1012
10:00
+13°C
13.6
79%
1013
11:00
+14°C
13.9
72%
1013
12:00
+15°C
14.5
64%
1014
13:00
+16°C
14.8
58%
1014
14:00
+16°C
15
53%
1015
15:00
+17°C
15.1
51%
1016
16:00
+16°C
14.7
52%
1016
17:00
+16°C
14.1
55%
1017
18:00
+15°C
13.4
59%
1017
19:00
+14°C
12.3
64%
1017
20:00
+13°C
11.6
69%
1018
21:00
+12°C
11.1
73%
1018
22:00
+12°C
10.9
76%
1018
23:00
+11°C
10.8
79%
1019


Climate Characteristics of Pärnu

General Overview

Pärnu is situated on the shores of Pärnu Bay in the northeastern Baltic Sea. Due to the bay's shallow waters, Pärnu enjoys the warmest sea temperatures in Estonia and the rest of the Baltic states during summer. Its climate is maritime-temperate, characterized by relatively mild winters compared to the interior and sunny summers that make it the country's primary resort destination.

Temperatures and Daily Variations

In summer, daytime temperatures average between 21°C and 24°C (70-75°F), and the sea breeze keeps the air pleasant and fresh. In winter, the average daytime temperature is around -1°C (30°F), dropping to -6°C (21°F) at night. Due to the proximity to water, winter cold is less extreme than in Tartu, but the humidity and sea winds can make the cold feel "wet" and piercing.

Precipitation Seasons (August-December)

Autumn is the rainiest season in Pärnu. The combination of relatively warm water and cold air arriving from the north often creates spectacular autumn storms and prolonged rainfall. In winter, snow is common but often alternates with freezing rain due to the maritime influence, creating slippery ground conditions.

Dry and Comfortable Seasons (May-July)

This is the city's golden period. May and June are the sunniest and driest months. During this time, the water begins to warm rapidly, and long days allow for many hours spent outdoors. Humidity is lowest in June, making the weather perfect for walking and cycling.

Weather in Pärnu by Month

January

The coldest month. Daytime temperatures are around -2°C (28°F) and drop to -7°C (19°F) at night. The bay often freezes, allowing for an endless white landscape of ice. Sea winds can be very strong and cold.

February

Cold maritime winter. -2°C (28°F) daytime. Snow accumulation on the beach and in parks is at its peak. Days lengthen, but the sky is mostly grey. High humidity makes the cold feel more intense.

March

The start of the thaw. 3°C (37°F) daytime. Bay ice begins to break, creating impressive sights along the coastline. The sun appears more frequently, but the air remains cool and windy.

April

Spring awakening. 9°C (48°F) daytime. Snow disappears quickly from the sandy beaches. Weather is still volatile—bright days alternate with cold rains, but nature begins to show its first green.

May

The month of blooming and sun. 16°C (61°F) daytime. Skies are blue most of the time and humidity is low. The city begins to fill with early tourists and the atmosphere becomes summer-like and pleasant.

June

Start of the swimming season and "White Nights." 19°C (66°F) daytime. The sun barely sets, and the city is particularly vibrant. The bay water starts reaching temperatures suitable for swimming (around 18°C/64°F).

July

The warmest and most popular month. 23°C (73°F) daytime and 14°C (57°F) at night. Sunny and warm days. This is the peak time for beach cafes and water activities. Short, refreshing summer showers are possible.

August

Continuation of summer with 22°C (72°F) daytime. The bay water is at its warmest (can reach 22°C/72°F). Rainfall increases toward the end of the month and nights become humid and pleasant.

September

Early and pleasant autumn. 16°C (61°F) daytime. Skies return to being clear and the air becomes crisp and refreshing. Autumn colors appear in the magnificent parks along the coast.

October

Cooling and autumn winds. 10°C (50°F) daytime. The sea becomes rougher and days shorten significantly. A rainy month characterized by a quick transition from pleasant weather to autumn cold.

November

A dark and grey month. 4°C (39°F) daytime. Most of the time the sky is covered in heavy clouds. Sea winds strengthen and there is a probability of first snow mixed with cold rain.

December

Winter returns. 0°C (32°F) daytime and -4°C (25°F) at night. The city is decorated with Christmas lights. The first snow accumulates on the beach sand, creating a unique "snowy beach" look.

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