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September Weather in Halfway, United States

Last updated: June 24, 2025

In Halfway, United States, the average temperature in September is a pleasant 21°C (71°F). However, temperatures can range from a cool 4°C (40°F) to a warm 35°C (95°F). Expect about 105 mm (4.1 in) of precipitation over 9 days, and enjoy an average humidity level of 68%.

September Temperature in Halfway

In September in Halfway, the average temperature is 21°C (71°F). Maximums can reach 35°C (95°F) and minimums can be as low as 4°C (40°F). Be prepared for a wide range of temperatures, making it ideal for layered clothing to enjoy your travel.

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

The chart illustrates September temperature patterns in Halfway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Halfway, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec353945556573797670604539
Data source: Temperature data for Halfway 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 Halfway

In Halfway in September, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.

September Precipitation Trends in Halfway

The chart displays monthly precipitation patterns in Halfway, 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 Halfway, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec619488104132100127981051008494
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Halfway

In Halfway in September, humidity is 68%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, making traveling a bit sticky but also inviting for leisurely strolls and outdoor adventures.

September Average Humidity in Halfway

This chart illustrates the average monthly humidity levels in Halfway, 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 Halfway is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Halfway

In Halfway 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 Halfway.

Maximum UV Index Levels in Halfway for September

The chart shows the monthly maximum UV Index (UVI) for Halfway 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 Halfway typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098743
Data source: Halfway 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 Halfway Compares to Other Months

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

This table compares monthly weather conditions in Halfway, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)61 mm (2.4 inches)86%moderate
February Weather4°C (39°F)94 mm (3.7 inches)86%moderate
March Weather7°C (45°F)88 mm (3.5 inches)86%high
April Weather13°C (55°F)104 mm (4.1 inches)84%very high
May Weather18°C (65°F)132 mm (5.2 inches)78%very high
June Weather23°C (74°F)100 mm (3.9 inches)79%very high
July Weather26°C (79°F)127 mm (5.0 inches)70%very high
August Weather25°C (77°F)98 mm (3.9 inches)59%very high
September Weather21°C (71°F)105 mm (4.1 inches)68%very high
October Weather16°C (60°F)100 mm (3.9 inches)80%high
November Weather7°C (45°F)84 mm (3.3 inches)86%moderate
December Weather4°C (39°F)94 mm (3.7 inches)85%moderate

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