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September Weather in Grange, Ireland

Last updated: August 23, 2025

In September, the average temperature in Grange, Ireland is a comfortable 13°C (56°F), with minimums dipping to 4°C (39°F) and maximums reaching up to 24°C (75°F). Expect an average of 119 mm (4.7 in) of precipitation over 19 days, contributing to an average humidity level of 87%.

September Temperature in Grange

In September in Grange, the average temperature is 13°C (56°F), with maximums reaching 24°C (75°F) and minimums dipping as low as 4°C (39°F). This mild climate makes it an ideal time for travelers to explore outdoor attractions while enjoying comfortable weather.

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

The chart illustrates September temperature patterns in Grange, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grange, September typically has an average temperature of 13°C (56°F), with highs reaching up to 24°C (75°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec434344485256595855514644
Data source: Temperature data for Grange 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 Grange

In Grange in September, the precipitation amount is 119 mm (4.7 in) accumulated over the course of 19 days.

September Precipitation Trends in Grange

The chart displays monthly precipitation patterns in Grange, 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 Grange, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1011401286484116112164119153133140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Grange

In Grange in September humidity is 87%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it challenging to explore comfortably.

September Average Humidity in Grange

This chart illustrates the average monthly humidity levels in Grange, 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 Grange is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%83%84%83%84%86%86%87%87%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grange

In Grange 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 Grange.

Maximum UV Index Levels in Grange for September

The chart shows the monthly maximum UV Index (UVI) for Grange 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 Grange typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Grange 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 Grange Compares to Other Months

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

This table compares monthly weather conditions in Grange, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)101 mm (4.0 inches)84%low
February Weather6°C (43°F)140 mm (5.5 inches)84%low
March Weather7°C (44°F)128 mm (5.0 inches)83%moderate
April Weather9°C (48°F)63 mm (2.5 inches)84%moderate
May Weather11°C (53°F)84 mm (3.3 inches)83%high
June Weather13°C (56°F)116 mm (4.6 inches)83%very high
July Weather15°C (59°F)112 mm (4.4 inches)86%very high
August Weather15°C (59°F)164 mm (6.4 inches)86%high
September Weather13°C (56°F)119 mm (4.7 inches)87%moderate
October Weather10°C (51°F)153 mm (6.0 inches)87%moderate
November Weather8°C (47°F)133 mm (5.2 inches)88%low
December Weather7°C (44°F)139 mm (5.5 inches)84%low

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