Weather in Latvia in September
Country-wide climate normals across 15 cities in Latvia.
How Hot Is Latvia in September?
Latvia's small geographic footprint means September is uniformly mild — typical 17°C highs nationwide.
Sunshine in Latvia in September
Latvia's September brings mixed skies — Riga averages 3.5h of sun, with similar conditions nationwide. Cloudy periods alternate with sunny stretches, and the sun is up between 6:55 am and 7:40 pm. Plan for variability rather than guaranteed sunshine.
Does It Rain In Latvia In September?
Typical September rainfall covers Latvia: about 67mm in Riga across 11 days, with wetter conditions in coastal regions and drier conditions inland. Expect showers about half the days, but extended dry stretches between them. The pattern is variable but predictable.
Is Latvia Humid In September?
Latvia is enveloped in tropical-thick humidity through September: Riga averages 77%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Latvia In September
Latvia's September has gentle wind — Riga averages 18 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Latvia In September
Latvia sees mostly cloudy weather through September: Riga averages 63% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.