nomadseason

September Weather in Edinburgh, United States

Last updated: June 24, 2025

In September, the average temperature in Edinburgh, United States hovers around 21°C (71°F), offering a pleasant climate. Temperatures can fluctuate from a minimum of 6°C (44°F) to a warm maximum of 34°C (94°F). During this month, expect around 81 mm (3.2 in) of precipitation spread over 8 days, contributing to an average humidity of 69%.

September Temperature in Edinburgh

In September in Edinburgh, the average temperature is 21°C (71°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as 6°C (44°F). This weather makes Edinburgh an ideal destination for travelers seeking pleasant temperatures, but also a reminder to prepare for a range of conditions.

September Weather in Edinburgh: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Edinburgh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Edinburgh, September typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec323645546574777570594338
Data source: Temperature data for Edinburgh generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Edinburgh

In Edinburgh in September, the precipitation amount is 81 mm (3.2 in) over the course of 8 days.

September Precipitation Trends in Edinburgh

The chart displays monthly precipitation patterns in Edinburgh, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Edinburgh, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8310813811713612511398819910297
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Edinburgh

In Edinburgh in September humidity is 69%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, creating a tropical atmosphere that can make outdoor activities feel slightly sticky, yet invigorating for travelers who are ready to embrace the local culture and explore.

September Average Humidity in Edinburgh

This chart illustrates the average monthly humidity levels in Edinburgh, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Edinburgh is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Edinburgh

In Edinburgh in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Edinburgh.

Maximum UV Index Levels in Edinburgh for September

The chart shows the monthly maximum UV Index (UVI) for Edinburgh in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Edinburgh typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Edinburgh September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Edinburgh Compares to Other Months

Weather in Edinburgh varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Edinburgh, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Edinburgh, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)83 mm (3.3 inches)87%moderate
February Weather2°C (36°F)108 mm (4.2 inches)85%moderate
March Weather7°C (45°F)138 mm (5.4 inches)86%high
April Weather12°C (54°F)117 mm (4.6 inches)84%very high
May Weather19°C (66°F)136 mm (5.4 inches)79%very high
June Weather23°C (74°F)125 mm (4.9 inches)82%extreme
July Weather25°C (78°F)113 mm (4.4 inches)79%very high
August Weather24°C (75°F)98 mm (3.9 inches)70%very high
September Weather21°C (71°F)81 mm (3.2 inches)69%very high
October Weather15°C (59°F)99 mm (3.9 inches)76%high
November Weather6°C (43°F)102 mm (4.0 inches)88%moderate
December Weather3°C (38°F)97 mm (3.8 inches)87%moderate

Compare Edinburgh's Climate with Cities Worldwide