Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	11	11	11	11	11	11	12	13	13	13	13	14	15	15	16	17	17	17	17	17	16	14	14	14
Precipitation (mm/hr)	0	0	0	0	0	0	0.01	0.01	1.1	0.43	0.36	0.49	0.71	0.59	1.29	0.75	0.21	0.28	0.06	0.17	0.15	0.01	0.01	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	86	66	70	79	74	89	79	80	66	93	94
Rain chance (%)	23	23	24	24	23	23	26	27	75	62	58	65	70	62	67	58	36	35	26	32	33	22	25	20

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	0.5	1.69	2	2.11	2.11	2.11	2	2	2.31	2.69	3.39	3.69	3.81	3.81	4.19	4.19	5.11	6.11	6.5	5.81	5.31	6.5	6.81	6.11
Wind gust (m/s)	3.5	5.69	2	2.92	4	3.81	4.31	5.31	5.11	6.39	8.72	8.5	8.31	7.89	7.5	7.5	8.53	10.31	10.39	9.89	10.19	11.81	12.5	11.83
Wind direction (°)	E 81°	E 98°	ESE 105°	ESE 108°	ESE 122°	SE 127°	SE 135°	SE 144°	SE 137°	SE 127°	SE 142°	SSE 159°	SSE 165°	S 185°	SSW 202°	SW 216°	SW 224°	SW 216°	SW 218°	SW 230°	WSW 257°	W 276°	WNW 283°	WNW 287°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	78	79	81	81	78	79	82	84	92	96	96	95	94	93	90	88	84	78	78	81	82	88	83	75

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	751	751	751	751	751	751	750	750	750	750	750	750	750	751	750	751	751	751	751	751	751	752	753	754

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0.1	0.2	0.5	0.8	1.4	2.1	1.8	1.4	1.4	2.3	1.2	0.8	0.3	0.1	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	3.1	3.1	3.3	3.4	3.6	3.8	4.2	5	4.6	3.9	3.4	3.4	3.4	3.1	2.8	2.8	2.6	3	3.3	3.8	4.1	4	4.7	4.8
PM10 (µg/m³)	4.3	4.6	4.8	5	5.1	5.3	5.5	6	6.1	5.9	6.1	5	4.6	4.2	3.7	3.6	3.7	3.9	4.3	5.3	5.8	6.2	6.6	6
Ozone (O₃) (µg/m³)	52	50	47	45	42	40	46	47	49	48	57	62	65	68	69	70	71	70	70	69	69	72	69	67
NO₂ (µg/m³)	1.6	1.8	1.9	1.8	1.8	1.9	2.1	2.3	2.8	1.9	1.9	1.5	0.9	0.7	0.6	0.6	0.5	0.6	0.7	1	1.2	1.3	1.6	1.5
SO₂ (µg/m³)	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.3	0.3	0.3	0.3	0.2	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
CO (µg/m³)	126	122	120	123	127	127	128	133	137	130	134	131	127	124	124	122	121	122	122	126	129	131	134	134

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Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

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5-day weather forecast Pärnu 20-08-2026

Forecast from 11 °C to 17 °C and precipitation