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Erts Weather in September

September in Erts brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 6°C (43°F). Quite a bit of rainfall is expected, around 80 mm (3.1 in), so pack an umbrella.

Rainfall in Erts in September

You can expect rain on around 11 days based on historical patterns, with 80 mm (3.1 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Erts in September

September in Erts brings moderate temperatures, with highs of 18°C (64°F) and nights around 6°C (43°F). Conditions are often most pleasant around the middle of the day. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable 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.

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

Erts Temperature in September

Min TemperatureMin Temperature 6°C (43°F)  
Max TemperatureMax Temperature 18°C (64°F)  
Chance of RainChance of Rain 38%  
PrecipitationPrecipitation 80 mm (3.1 in)  
Rainy daysRainy days 11 days  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Erts typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 12°C (54°F).

Average temperatures in September

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

Historical weather for Erts in September

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

Erts historical weather extremes in September

Our historical data for Erts spans 1976 to 2025, revealing these weather extremes.

  • On September 16, 1987, temperatures climbed to 36°C (97°F), marking the warmest September day on record.
  • Erts experienced its chilliest September day on September 23, 2025, reaching only 8°C (46°F).
  • The coldest night in September in Erts was on September 14, 2024, with a minimum of -3°C (27°F).

Best Places in Andorra in September

Find out more about the weather in Andorra and which places have the best travel conditions in this month. See all of Andorra in September →

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Erts in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Erts in September

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

Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

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

More climate data for Erts