5-day weather forecast Riga Sep 20, 2026

17°12° · Patchy rain possible

Weather forecast Riga Sunday Sep 20, 2026: patchy rain possible, temperature from 12 °C to 17 °C.

Precipitation probability 79%. Wind up to 6.89 m/s (gusts 14.61 m/s). Air humidity 64–94%, atmospheric pressure 755–761 mm Hg, UV index up to 3.

Weather Alerts

ModerateSep 16, 12:00 PM — Sep 16, 11:00 PMTranslate with Google

Dzeltenais vēja brīdinājums

16.09.2026. laika posmā no plkst. 12:00 līdz plkst. 16:00 dienvidu, dienvidrietumu vējš pastiprināsies brāzmās līdz 15-16 m/s. Viļņu augstums 1.0-1.5 m.

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Sunrise 07:04
Sunset 19:29

Waxing Gibbous73% illuminated
Moonrise 18:04 · Moonset does not set today

Chart

Table

← Sat, Sep 19

Sun, Sep 20, 2026

Forecast from 12 °C to 17 °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)	13	12	12	13	15	16	12	14	14	14	16	16	17	17	16	15	15	14	14	14	13	13	12	12
Precipitation (mm/hr)	0	0	0	0	0	0	0	0.04	0.05	0.06	0.02	0.03	0.07	0.11	0.41	1.82	1.8	1.7	1.66	1.1	0.6	0.06	0.2	0.3

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 (%)	6	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	91	81
Rain chance (%)	11	27	26	24	16	16	22	29	30	26	26	28	24	35	53	79	79	79	79	75	65	37	45	48

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)	5.69	5.69	5.81	6	6.31	6.19	6.19	6.61	6.19	6.69	6.39	6	6.89	5.89	6.5	5.61	5.69	5.81	5.89	5.61	5.19	4.89	4.81	4.69
Wind gust (m/s)	12.92	12.81	13.19	13.61	14.42	14.11	14.61	13.31	12.92	14.61	12.03	11.03	13.31	10.81	11.42	10.53	10.39	10.31	10.11	10.19	10.31	10.39	9.89	9.5
Wind direction (°)	SSW 210°	SSW 202°	SSW 201°	SSW 201°	SSW 201°	SSW 200°	SSW 195°	SSW 210°	SSW 206°	SSW 195°	SSW 211°	SSW 213°	SSW 208°	SSW 212°	SW 224°	SW 218°	SW 217°	SW 217°	SW 216°	SW 216°	SW 217°	SW 218°	SW 218°	SW 218°

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 (%)	84	85	84	80	65	64	77	82	82	74	82	84	69	82	85	90	92	92	94	93	92	91	92	93

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)	761	761	761	761	761	761	761	760	760	759	759	759	758	759	758	757	757	757	756	756	756	755	755	755

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	0.1	0.7	0.4	1	1.1	0.6	1.1	3	3	3	3	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

← Sat, Sep 19

Sun, Sep 20, 2026

Riga 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.

Learn more about our methodology →