5-day weather forecast Riga 18-08-2026

Weather forecast Riga today 18.08.2026: patchy rain possible, temperature from 14 °C to 17 °C.

Precipitation probability 44%. Wind up to 2.61 m/s (gusts 5.81 m/s). Air humidity 60–89%, atmospheric pressure 751–754 mm Hg, UV index up to 2.3.

Sunrise 05:57
Sunset 20:57
First Quarter37% illuminated
Moonrise 14:07 · Moonset 21:48
Chart
Table
Tue, Aug 18, 2026
TemperatureRain chanceCloud coverHumidityPressureWindUV Index
00:00Weather
Patchy rain possible
16 °C35% (0.12 mm/hr)100%80%754 mm HgNW 310° 2.11 (3) m/s0
01:00Weather
Patchy rain possible
15 °C36% (0.14 mm/hr)100%81%754 mm HgNW 311° 1.69 (2.61) m/s0
02:00Weather
Patchy rain possible
15 °C33% (0.09 mm/hr)100%81%754 mm HgNW 307° 2 (2.81) m/s0
03:00Weather
Light rain shower
15 °C44% (0.27 mm/hr)100%82%754 mm HgWNW 297° 1.61 (2.31) m/s0
04:00Weather
Light rain shower
15 °C40% (0.21 mm/hr)100%82%753 mm HgWNW 291° 1.31 (1.83) m/s0
05:00Weather
Patchy rain possible
15 °C30% (0.06 mm/hr)100%81%753 mm HgWSW 249° 0.89 (1.22) m/s0
06:00Weather
Patchy rain possible
15 °C34% (0.11 mm/hr)100%81%753 mm HgWNW 287° 0.5 (1.33) m/s0
07:00Weather
Patchy rain possible
15 °C34% (0.11 mm/hr)100%80%753 mm HgE 83° 0.31 (1.22) m/s0
08:00Weather
Patchy rain possible
15 °C32% (0.07 mm/hr)100%83%753 mm HgSE 146° 1.31 (1.31) m/s0
09:00Weather
Patchy rain possible
14 °C40% (0.11 mm/hr)100%89%752 mm HgS 169° 1.31 (1.5) m/s0.1
10:00Weather
Patchy rain possible
14 °C42% (0.14 mm/hr)100%89%752 mm HgSSW 195° 1.31 (1.42) m/s0.3
11:00Weather
Patchy rain possible
14 °C32% (0.03 mm/hr)100%89%752 mm HgSSW 193° 1 (5) m/s0.7
12:00Weather
Overcast
15 °C27% 100%86%752 mm HgSE 136° 0.81 (0.83) m/s0.9
13:00Weather
Patchy rain possible
16 °C28% (0.05 mm/hr)100%79%752 mm HgSSE 151° 0.81 (5.81) m/s1.6
14:00Weather
Patchy rain possible
17 °C30% (0.12 mm/hr)100%73%752 mm HgNE 51° 0.61 (1.22) m/s2.3
15:00Weather
Patchy rain possible
17 °C22% (0.06 mm/hr)100%68%752 mm HgNNW 346° 1.11 (1.42) m/s2.2
16:00Weather
Patchy rain possible
17 °C19% (0.03 mm/hr)100%65%752 mm HgNNW 345° 2.19 (2.42) m/s2
17:00Weather
Overcast
17 °C15% 100%61%752 mm HgN 349° 2.5 (2.72) m/s1.6
18:00Weather
Patchy rain possible
17 °C11% (0.01 mm/hr)72%60%752 mm HgNNW 347° 2.61 (3.11) m/s0.9
19:00Weather
Sunny
17 °C5% 21%61%752 mm HgNNW 342° 2.5 (3.31) m/s0.4
20:00Weather
Patchy rain possible
16 °C14% (0.01 mm/hr)83%66%751 mm HgNNW 336° 2.19 (3.22) m/s0.1
21:00Weather
Clear
15 °C6% 1%70%751 mm HgNNW 333° 2.19 (3.42) m/s0
22:00Weather
Clear
15 °C6% 2%71%752 mm HgNNW 330° 2.31 (3.92) m/s0
23:00Weather
Clear
15 °C7% 2%72%751 mm HgNW 319° 2.61 (4.22) m/s0
Tue, Aug 18, 2026

Frequently asked questions about the 5-day weather in Riga

What will the weather be like in Riga over the next 5 days?
Over the next 5 days in Riga the temperature is expected to range from about 11 to 21 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Riga?
The chance of rain in Riga over the next 5 days reaches 50%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Riga?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Riga will be the warmest and which the coolest?
Over the next 5 days the temperature in Riga ranges from about 11 to 21 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Riga over the next 5 days?
Over the next 5 days the wind in Riga picks up to 8 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Riga is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 50%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Riga?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

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.