Ādaži Weather in September

September in Ādaži typically sees daytime highs of 18°C (64°F) and nighttime lows of 10°C (50°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Ādaži in September

Typically, about 16 days will experience rainfall, with an average of 74 mm (2.9 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Ādaži in September

Daytime temperatures in Ādaži reach 18°C (64°F) in September, dropping to 10°C (50°F) at night. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Ādaži in September

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

Wind Speed in Ādaži in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in September

The water sits at 7°C (45°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Ādaži.

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 Ādaži's climate page.

Ādaži Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Water Temperature 7°C (45°F) *  

Chance of Rain 53%  

Precipitation 74 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 (20 KM, 12 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Ādaži 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

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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

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Historical weather for Ādaži in September

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

Historical weather Temperatures Precipitation

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Ādaži historical weather extremes in September

According to our 49 years of weather records for Ādaži, the following extremes were recorded between 1976 and 2025.

• Ādaži recorded its highest September temperature of 29°C (84°F) on September 4, 2024.
• On September 26, 1986, Ādaži saw its coldest September day with temperatures maxing out at 7°C (45°F).
• The lowest overnight temperature recorded in September was -5°C (23°F) (September 30, 1993).

What to Wear in Ādaži in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Expect water temperatures of around 7°C (45°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Ādaži 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

4/10

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 Ādaži's climate page.

More climate data for Ādaži

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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