5-day weather forecast Riga 18-04-2026

Weather forecast Riga tomorrow 18.04.2026: sunny, temperature from 3 °C to 10 °C.

No precipitation expected. Wind up to 4.61 m/s (gusts 6.5 m/s). Air humidity 50–86%, atmospheric pressure 766–767 mm Hg, UV index up to 3.4.

Sunrise 06:08
Sunset 20:39

Waxing Crescent1% illuminated
Moonrise 05:53 · Moonset 22:58

Chart

Table

← Fri, Apr 17

Sat, Apr 18, 2026

Sun, Apr 19 →

Forecast from 3 °C to 10 °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)	5	5	5	4	3	3	4	4	5	7	8	9	10	10	10	10	10	9	9	8	7	6	5	5
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	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 (%)	7	2	19	49	3	16	100	10	1	0	91	84	0	0	2	28	85	100	8	17	19	14	9	4
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

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)	2.5	2.69	2.89	2.69	2.5	2.31	2.19	2	2.11	2.39	2.61	2.69	2.89	3.5	4	4.5	4.61	4.5	4.19	3.61	3.19	3	2.69	2.39
Wind gust (m/s)	5.25	5.67	6.08	5.67	5.25	4.83	4.58	4	3.64	3.64	3.61	3.64	3.78	4.58	5.25	5.86	6.25	6.47	6.5	5.83	5.86	6.31	5.67	5.03
Wind direction (°)	N 10°	NNE 13°	N 10°	NNE 12°	NNE 17°	NNE 18°	NNE 13°	N 8°	N 8°	NNE 16°	NNE 19°	N 8°	N 353°	NNW 341°	NNW 335°	NNW 334°	NNW 338°	NNW 340°	NNW 342°	N 350°	N 3°	N 9°	NNE 19°	NE 39°

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	84	79	79	84	84	78	77	73	66	60	55	53	51	50	52	53	51	51	54	59	65	67	68

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)	766	766	766	766	767	767	766	766	767	767	767	767	767	767	767	767	766	766	766	766	766	766	766	766

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	0.3	0.8	1.4	2.2	2.9	3.4	3.4	3	2.3	1.4	0.8	0.3	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)	9.4	10	9.7	8.2	7.6	7.5	7.4	7.1	7	7.2	8.3	9.6	7.8	7.1	6.3	5.1	5.1	4.8	4.9	5.3	6.1	6.4	6.8	9.3
PM10 (µg/m³)	13.4	13.5	12.4	11.2	10.2	10.3	10.2	9.9	9.8	10	12.8	15.2	12.2	10.2	8.8	8.3	8.4	7.8	8.1	8.1	8.2	8.6	9	12.4
Ozone (O₃) (µg/m³)	83	73	69	66	60	59	56	55	55	53	51	50	52	58	68	77	79	80	80	80	82	81	81	80
NO₂ (µg/m³)	6.6	7.7	6.5	6.2	5.4	4	4.4	4.2	4.4	5.5	7.4	12.2	7.5	5.1	4	3	2.7	2.8	2.8	2.9	3	3.7	5.5	6.6
SO₂ (µg/m³)	1.9	2.1	1.9	1.7	1.5	1.6	1.6	1.6	1.6	1.9	2.4	3	2.4	2.1	1.8	1.6	1.5	1.5	1.4	1.4	1.4	1.5	1.8	1.9
CO (µg/m³)	168.9	172.9	169.9	160.9	155.9	154.9	159.9	159.9	159.9	161.9	180.9	217.9	207.9	185.9	172.9	164.9	163.9	163.9	162.9	162.9	164.9	173.9	182.9	184.9

← Fri, Apr 17

Sat, Apr 18, 2026

Sun, Apr 19 →

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 →