Jūrmala Weather in September

September in Jūrmala brings moderate temperatures around 18°C (64°F) during the day, dropping to 11°C (52°F) at night, with quite a bit of rainfall expected, averaging around 73 mm (2.9 in) for the month.

Rainfall in Jūrmala in September

You can expect rain on roughly 16 days based on historical data, averaging 73 mm (2.9 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Jūrmala in September

In September, Jūrmala gets moderate temperatures, with highs of 18°C (64°F). Nights cool to around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Jūrmala in September

The month brings about 154 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Jūrmala in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in September

At 7°C (45°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.

If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Latvia, check out our Jūrmala's climate page.

Jūrmala Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 18°C (64°F)  

Water Temperature 7°C (45°F) *  

Chance of Rain 53%  

Precipitation 73 mm (2.9 in)  

Rainy days 16 days  

Humidity 81% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 154 hours *  

Percentage Sunshine *  

* Data from: Rīga, Latvia (15 KM, 9 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Jūrmala typically drop from around 19°C (66°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 11°C (52°F).

Average temperatures in September

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Jūrmala in September

Browse day-by-day weather records for Jūrmala spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Jūrmala historical weather extremes in September

Based on 49 years of weather observations in Jūrmala between 1976 and 2025, these are the recorded extremes.

• The hottest September day on record in Jūrmala reached 29°C (84°F) (September 4, 2024).
• The lowest daytime temperature in September was 7°C (45°F), recorded on September 26, 1986.
• Jūrmala registered its coldest September night on September 30, 1993, with temperatures dropping to -5°C (23°F).

What to Wear in Jūrmala in September

For Jūrmala in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. The water temperature sits at about 7°C (45°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Jūrmala in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Latvia, check out our Jūrmala's climate page.

More climate data for Jūrmala

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Jūrmala climate overview or explore weather in Latvia.