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September Weather in Stanley, Falkland Islands (Malvinas)

Last updated: August 23, 2025

In Stanley, Falkland Islands (Malvinas), the average temperature in September hovers around 5°C (41°F). Expect chilly days with minimums dropping to -2°C (29°F) and a warmer peak at 10°C (51°F). Rainfall during this month averages 47 mm (1.8 in) over approximately 12 days, while humidity lingers at a notable 83%.

September Temperature in Stanley

In September in Stanley, the average temperature is 5°C (41°F), with maximums reaching 10°C (51°F) and minimums dropping as low as -2°C (29°F). Be sure to pack warm clothing and be prepared for chilly weather if you plan to visit during this time.

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

The chart illustrates September temperature patterns in Stanley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stanley, September typically has an average temperature of 5°C (41°F), with highs reaching up to 10°C (51°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec505149474341404041434649
Data source: Temperature data for Stanley generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Stanley

In Stanley in September, the precipitation amount is 47 mm (1.8 in) over a period of 12 days.

September Precipitation Trends in Stanley

The chart displays monthly precipitation patterns in Stanley, 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 Stanley, September typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec595443636350484847615452
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stanley

In Stanley in September humidity is 83%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm and dry.

September Average Humidity in Stanley

This chart illustrates the average monthly humidity levels in Stanley, 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 Stanley is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%83%84%83%84%84%81%82%83%79%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Stanley

In Stanley in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Stanley.

Maximum UV Index Levels in Stanley for September

The chart shows the monthly maximum UV Index (UVI) for Stanley 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 Stanley typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec119642123561111
Data source: Stanley 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 Stanley Compares to Other Months

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

This table compares monthly weather conditions in Stanley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)59 mm (2.3 inches)81%extreme
February Weather10°C (51°F)54 mm (2.1 inches)83%very high
March Weather9°C (49°F)43 mm (1.7 inches)84%high
April Weather8°C (47°F)63 mm (2.5 inches)83%moderate
May Weather6°C (44°F)63 mm (2.5 inches)84%low
June Weather5°C (41°F)50 mm (2.0 inches)84%low
July Weather4°C (40°F)48 mm (1.9 inches)81%low
August Weather5°C (40°F)48 mm (1.9 inches)82%moderate
September Weather5°C (41°F)47 mm (1.8 inches)83%moderate
October Weather6°C (43°F)60 mm (2.4 inches)79%high
November Weather8°C (46°F)54 mm (2.1 inches)80%extreme
December Weather9°C (49°F)52 mm (2.1 inches)79%extreme

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