nomadseason

September Weather in High Ongar, United Kingdom

Last updated: August 27, 2025

In High Ongar, United Kingdom, the average temperature in September sits comfortably at 15°C (59°F), with a range that can dip to a cool 3°C (38°F) and rise to a warm 27°C (82°F). Expect about 49 mm (1.9 in) of precipitation spread over 11 days, contributing to an average humidity of 80%, which adds a refreshing touch to the atmosphere.

September Temperature in High Ongar

In September in High Ongar, the average temperature is 15°C (59°F). Maximums can reach 27°C (82°F), and minimums can be as low as 3°C (38°F). This climate makes High Ongar a pleasant destination for travelers looking to enjoy mild weather during this time of year.

September Weather in High Ongar: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in High Ongar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In High Ongar, September typically has an average temperature of 15°C (59°F), with highs reaching up to 27°C (82°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec414345495561656459534643
Data source: Temperature data for High Ongar 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 High Ongar

In High Ongar in September, the total precipitation amount is 49 mm (1.9 in) spread over 11 days.

September Precipitation Trends in High Ongar

The chart displays monthly precipitation patterns in High Ongar, 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 High Ongar, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec525054306572657349824683
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in High Ongar

In High Ongar in September, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

September Average Humidity in High Ongar

This chart illustrates the average monthly humidity levels in High Ongar, 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 High Ongar is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in High Ongar

In High Ongar 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 High Ongar.

Maximum UV Index Levels in High Ongar for September

The chart shows the monthly maximum UV Index (UVI) for High Ongar 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 High Ongar typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: High Ongar 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 High Ongar Compares to Other Months

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

This table compares monthly weather conditions in High Ongar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)52 mm (2.0 inches)91%low
February Weather6°C (43°F)50 mm (2.0 inches)89%low
March Weather7°C (46°F)54 mm (2.1 inches)86%moderate
April Weather9°C (49°F)30 mm (1.2 inches)85%moderate
May Weather13°C (55°F)65 mm (2.6 inches)82%high
June Weather16°C (62°F)72 mm (2.9 inches)81%very high
July Weather18°C (65°F)65 mm (2.5 inches)76%very high
August Weather18°C (64°F)73 mm (2.9 inches)73%high
September Weather15°C (59°F)49 mm (1.9 inches)80%moderate
October Weather12°C (54°F)82 mm (3.2 inches)89%moderate
November Weather8°C (46°F)46 mm (1.8 inches)92%low
December Weather6°C (43°F)83 mm (3.3 inches)92%low

Compare High Ongar's Climate with Cities Worldwide