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Weather Comparison

Lisbon vs Athens

Side-by-side weather comparison for September

Lisbon: 22°CAthens: 22°C2,852 km apart

September Weather: Lisbon vs Athens

MetricLisbonAthensBetter
Average HighHigher is warmer22°C (72°F)22°C (72°F)Tie
Average LowHigher is milder13°C (55°F)13°C (55°F)Tie
Rain DaysFewer is drier4 days4 daysTie
PrecipitationLess is drier45 mm45 mmTie
Sunshine HoursMore is sunnier4h/day4h/dayTie
HumidityLower is more comfortable65%65%Tie
UV IndexLower is safer66Tie
Wind SpeedCalmer is better15 km/h15 km/hTie

Which City is Better in September?

Lisbon and Athens are closely matched in September. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Lisbon sits in the comfortable travel range at 22°C. Athens is also comfortable at 22°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Temperature Comparison in September

Lisbon reaches an average high of 22°C (72°F) and drops to 13°C (55°F) at night during September. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Athens averages 22°C (72°F) for the high and 13°C (55°F) for the low, with a daily range of 9°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Rainfall Comparison in September

Lisbon receives approximately 45 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Athens sees 45 mm over 4 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.

What to Pack: Lisbon vs Athens

Packing for Lisbon in September

Highs of 22°C, lows of 13°C, 4 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen

Packing for Athens in September

Highs of 22°C, lows of 13°C, 4 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen

Pack for both: light layers, a light jacket for evenings, sunscreen. These items are useful in either destination during September.

Year-Round Comparison: Lisbon vs Athens

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.September is highlighted for quick reference.

MonthLisbonAthens
HighRainHighRain
Jan16°C6d16°C6d
Feb19°C5d19°C5d
Mar22°C4d22°C4d
Apr26°C2d26°C2d
May28°C1d28°C1d
Jun29°C1d29°C1d
Jul28°C1d28°C1d
Aug26°C2d26°C2d
Sep22°C4d22°C4d
Oct19°C5d19°C5d
Nov16°C6d16°C6d
Dec15°C7d15°C7d
22°

Lisbon Weather in September

Full forecast, packing tips, and activities

22°

Athens Weather in September

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Lisbon warmer than Athens in September?
Lisbon and Athens have the same average high temperature of 22°C (72°F) in September. The average lows are 13°C and 13°C respectively.
Which city gets more rain in September, Lisbon or Athens?
Both cities average 4 rain days in September with similar precipitation levels.
Is it better to visit Lisbon or Athens in September?
It depends on your preferences. Lisbon averages 22°C and 4 hours of daily sunshine with 4 rain days. Athens averages 22°C with 4 sunshine hours and 4 rain days. If you prefer cooler conditions, choose Athens. For fewer rain days, both are equal.
How far apart are Lisbon and Athens?
Lisbon and Athens are approximately 2,852 km (1,771 miles) apart. Lisbon is located in Portugal (Europe) while Athens is in Greece (Europe).
What is the best month to visit Lisbon and Athens?
For Lisbon, May tends to be the best month with 7 hours of daily sunshine and a high of 28°C. For Athens, May is typically ideal with 7 sunshine hours and 28°C highs.

Compare Lisbon and Athens in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Lisbon coordinates: 38.72°N, -9.14°E | Athens coordinates: 37.98°N, 23.73°E