15-Day Weather Forecast - Riga

15-day weather forecast for Riga: temperatures from 9°C (48°F) to 19°C (66°F). Average daily high 17°C (63°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +19°C

15-Day Temperature Trend

19°11°TodaySep18°11°Tmrw16°12°Sun19°13°Mon18°12°Tue19°11°Wed19°13°Thu17°12°Fri15°12°Sat16°11°Sun13°10°Mon17°11°Tue15°10°Wed16°9°Thu12°10°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +19°/+11°
    feels +17°0.4 mm · 100%24 km/hUV 4 · Mod
    06:4519:53
  • Sat, Sep 12Tomorrow
    +18°/+11°
    feels +18°0.1 mm · 4%12 km/hUV 4 · Mod
    06:4719:50
  • Sun, Sep 13Sun
    +16°/+12°
    feels +16°1.1 mm · 53%13 km/hUV 3 · Low
    06:5019:47
  • Mon, Sep 14Mon
    +19°/+13°
    feels +20°3.0 mm · 36%12 km/hUV 3 · Mod
    06:5219:44
  • Tue, Sep 15Tue
    +18°/+12°
    feels +17°0.9 mm · 18%8 km/hUV 4 · Mod
    06:5419:42
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  • Wed, Sep 16Wed
    +19°/+11°
    feels +17°2.6 mm · 51%17 km/hUV 2 · Low
    06:5619:39
  • Thu, Sep 17Thu
    +19°/+13°
    feels +17°7.0 mm · 35%14 km/hUV 1 · Low
    06:5819:36
  • Fri, Sep 18Fri
    +17°/+12°
    feels +15°0 mm · 57%18 km/hUV 2 · Low
    07:0019:34
  • Sat, Sep 19Sat
    +15°/+12°
    feels +14°3.0 mm · 41%18 km/hUV 3 · Mod
    07:0219:31
  • Sun, Sep 20Sun
    +16°/+11°
    feels +14°4.8 mm · 42%17 km/hUV 3 · Mod
    07:0419:28
  • Mon, Sep 21Mon
    +13°/+10°
    feels +12°13.8 mm · 49%17 km/hUV 2 · Low
    07:0619:25
  • Tue, Sep 22Tue
    +17°/+11°
    feels +14°8.2 mm · 36%24 km/hUV 3 · Mod
    07:0819:23
  • Wed, Sep 23Wed
    +15°/+10°
    feels +13°5.0 mm · 39%24 km/hUV 2 · Low
    07:1019:20
  • Thu, Sep 24Thu
    +16°/+9°
    feels +13°0 mm · 39%14 km/hUV 2 · Low
    07:1219:17
  • Fri, Sep 25Fri
    +12°/+10°
    feels +10°4.2 mm · 41%15 km/hUV 3 · Low
    07:1419:14

Weather Insight

Riga's 15-day outlook ranges from a low of 9°C to a high of 19°C, with an average daytime high near 17°C. Air quality is currently good (AQI 29), with no notable outdoor health concerns.

Today vs Normal

19°C+2° above normal

The long-term average high for today is 17°C.

10 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 20°C20°2026-08-20: 19°C19°2026-08-21: 22°C22°2026-08-22: 20°C20°2026-08-23: 17°C17°2026-08-24: 19°C19°2026-08-25: 19°C19°2026-08-26: 20°C20°2026-08-27: 22°C22°2026-08-28: 22°C22°2026-08-29: 21°C21°2026-08-30: 22°C22°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.

Extended Outlook for Riga

Over the next 15 days, Riga is forecast to see temperatures ranging from 9°C to 20°C, averaging a daily high of 17°C. The extended outlook indicates significant rainfall totalling 54.1 mm spread across 13 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.