5-day weather forecast Pärnu 18-05-2026

Weather forecast Pärnu tomorrow 18.05.2026: sunny, temperature from 6 °C to 14 °C.

Precipitation probability 64%. Wind up to 7 m/s (gusts 11.25 m/s). Air humidity 56–96%, atmospheric pressure 759–765 mm Hg, UV index up to 2.

Sunrise 04:49
Sunset 21:49

Waxing Crescent2% illuminated
Moonrise 04:41 · Moonset 00:01

Chart

Table

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Forecast from 6 °C to 14 °C and precipitation

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)	7	7	7	7	6	6	7	9	10	12	12	14	14	14	13	14	13	11	10	10	10	10	10	11
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0.02	0.04	0.02	0.19	0.67	1.81	1.45	0.58	1.71	3.05	4.21	2.35

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 (%)	24	21	18	23	14	18	30	30	40	51	49	100	100	67	64	67	100	100	100	100	100	88	100	100
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	64	84	83	100	100	100	100	100	100	100	100	100

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)	2.81	2.69	2.89	3	3.11	3.39	3.61	3.69	4.19	4.61	4.31	4.5	4.19	4.19	4.39	4.31	4.81	4.81	5.81	6.31	6	6.61	7	6.61
Wind gust (m/s)	5.89	5.67	6.08	6.31	6.5	7.14	6.92	5.94	6.11	6.58	6.39	6.53	6.56	7.11	7.36	6.97	8.08	7.81	9.11	10.08	9.64	10.67	11.25	10.69
Wind direction (°)	N 356°	N 5°	N 7°	NNE 18°	NNE 29°	NNE 25°	NNE 25°	NNE 31°	NE 34°	NE 38°	NE 37°	NE 41°	NE 42°	NE 43°	NE 46°	NE 42°	NE 49°	NE 41°	NNE 23°	NNE 22°	NE 34°	NE 47°	NE 49°	NE 51°

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 (%)	82	85	86	84	83	84	82	76	68	62	61	56	58	61	62	61	72	89	95	95	95	96	95	96

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)	765	765	765	765	765	765	765	765	764	764	764	764	764	764	764	763	762	762	762	761	761	760	760	759

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	0.1	0.3	0.8	1.3	1.8	2	2	1.6	1.7	1.9	0.9	0.4	0.2	0.1	0	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)	5.7	6.1	6.6	5.6	5.2	5.4	6.3	7	6.7	6.9	6.7	5.8	4.6	4.1	4.2	4.4	4.4	4.4	4.4	4.2	4.1	4.6	5.2	5.1
PM10 (µg/m³)	8.7	8.4	8.7	8.2	7.4	7.9	7.8	7.9	8	8.6	9.6	8.4	7.6	6.9	6.4	6	6	5.7	5.7	5.8	6.5	6.6	8	8
Ozone (O₃) (µg/m³)	71	66	61	57	52	49	46	46	48	51	58	59	61	69	73	74	78	80	82	83	83	81	77	74
NO₂ (µg/m³)	3.5	4.1	3.4	3	2.9	3.3	3.7	3.9	3.4	3.7	3.4	3.3	3	2.7	2.3	2.1	1.9	1.9	1.9	1.8	1.9	2	2.1	2.1
SO₂ (µg/m³)	1	1	1	1	1	1	1	1	1	1.1	1.2	1.2	1.2	1.1	1	1	1	1	1	1.1	1.2	1.1	1.1	1.1
CO (µg/m³)	155.9	151.9	146.9	135.9	131.9	130.9	135.9	133.9	137.9	137.9	136.9	134.9	132.9	129.9	129.9	127.9	128.9	127.9	127.9	127.9	127.9	127.9	126.9	127.9

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Pärnu on the map

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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