Riga Weather in September
Riga in September
The short of it: Riga in September averages a high of 17 °C (63 °F) and a low of 9 °C (48 °F), with 63 mm (2.5 in) of rain and about 12 h 40 min of daylight. Rated 4 of 5 for a visit; the best months are June and May. Source: TerraClimate climate normals, 1991–2020.
Average high 17° · low 9° · rain 63 mm · daylight 12 h 40 min
✦✦✦✦ Recommended for a visit · best months: June & May
Thirty years of records give Riga an average September high of 17°, a low of 9° and some 63 mm of rain. Highs fall 5° against August, to near 17°; nights run about 9°. Wet spells are common — about 63 mm, the 4th wettest month.
The sun is up for about 12 h 40 min in mid-September, 151 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates September 4 of 5 for a visit; the finest months here are June and May.
Against its neighbours, Riga runs warmer than most and wetter than most in September. Vecrīga, 0 km to the NNW, sees much the same highs.
September in Riga, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 4th wettest of 12
- Versus August
- 5° colder, 11 mm less rain
- Versus October
- 7° warmer
- Day–night spread
- 8°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 12 h 40 min
- Average wind
- 12 km/h