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)	12	11	11	10	10	10	11	10	10	12	14	14	15	16	16	16	15	14	13	12	11	11	10	10
Precipitation (mm/hr)	0.03	0	0	0	0	0.01	0	0	0	0	0.63	0.3	0.46	0.48	0.42	0.51	0.18	0.35	0.89	0.06	0.39	0.33	0	0.01

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 (%)	54	10	5	0	13	76	18	5	7	5	78	73	82	81	84	82	97	100	100	99	88	71	7	87
Rain chance (%)	20	13	13	15	17	28	16	20	20	13	51	37	48	43	39	43	34	48	69	35	53	47	16	36

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)	4.61	4.31	4.11	4.31	3.69	3.89	4	3.19	3.19	3.81	4.5	4.81	4.61	4.31	4	4.39	5	5.11	5.69	5.19	4.19	3.69	3.61	3.19
Wind gust (m/s)	11.5	11.5	11	10.53	9.42	9.72	9.94	9.03	9.22	9.72	8.61	7.64	7	6.42	5.83	6.19	7.69	9.64	10.83	11	10.72	9.39	8.61	7.69
Wind direction (°)	SW 223°	SW 227°	SW 231°	SW 234°	SW 227°	SW 232°	SW 235°	SW 234°	SW 228°	WSW 237°	W 260°	W 270°	W 270°	W 270°	W 277°	WNW 288°	WNW 300°	NW 304°	NW 305°	WNW 303°	WNW 293°	WNW 282°	WNW 287°	WNW 294°

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 (%)	86	87	90	93	96	96	92	95	95	87	78	80	79	72	69	70	76	82	86	89	91	94	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)	753	753	753	753	752	752	752	752	752	753	753	754	754	754	754	755	755	755	756	757	758	758	758	758

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	0	0.3	0.7	1.2	1.6	1.9	2	1.5	1	0.6	0.2	0	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)	2.7	2.7	2.6	2.6	2.6	2.4	2.3	2.4	2.2	1.8	1.6	1.3	1.2	1.1	1	1.1	1	1.1	1.1	1	1	1.1	1.2	1.4
PM10 (µg/m³)	5.3	5.9	4.6	4.6	4.3	4.2	3.9	3.6	3.6	3.5	3	2.1	1.7	1.7	1.7	1.7	2.1	2	1.9	1.6	1.7	2.1	2.3	2.6
Ozone (O₃) (µg/m³)	68	66	64	62	60	59	58	59	58	57	56	56	56	57	59	59	58	58	58	57	56	56	56	60
NO₂ (µg/m³)	0.9	0.9	0.9	0.8	0.8	0.8	0.8	0.8	1	1.2	1.2	1	0.8	0.6	0.6	0.5	0.5	0.5	0.6	0.7	0.8	0.8	0.9	0.9
SO₂ (µg/m³)	0	0	0	0	0	0	0	0	0	0.1	0.1	0.1	0.1	0.1	0.1	0	0	0	0	0	0	0	0	0
CO (µg/m³)	177	182	180	182	183	182	181	179	179	179	180	179	179	180	181	181	179	180	180	179	182	183	183	182

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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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Weather forecast Mērsrags Sep 21, 2026

Weather Alerts

Forecast from 10 °C to 16 °C and precipitation