September Weather in Northwood, United States

Last updated: June 24, 2025

In Northwood, United States, the average temperature in September hovers around 18°C (65°F). While you can expect a minimum of 3°C (37°F), the highs can reach up to 33°C (92°F). This month brings about 111 mm (4.4 in) of precipitation over 10 days, contributing to an average humidity of 75%. Get ready for a blend of warmth and refreshing showers!

September Temperature in Northwood

In September in Northwood, the average temperature is 18°C (65°F), with maximums that can reach 33°C (92°F) and minimums that can drop to as low as 3°C (37°F). Overall, travelers should be prepared for a range of temperatures, ensuring they pack both warm clothing for the cooler evenings and lighter attire for the hotter days.

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

The chart illustrates September temperature patterns in Northwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northwood, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec181734455971737065493426
Data source: Temperature data for Northwood 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 Northwood

In Northwood in September, the precipitation amount is 111 mm (4.4 in) over a span of 10 days.

September Precipitation Trends in Northwood

The chart displays monthly precipitation patterns in Northwood, 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 Northwood, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec36477181152138961121111064737
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Northwood

In Northwood in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Northwood

This chart illustrates the average monthly humidity levels in Northwood, 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 Northwood is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Northwood

In Northwood 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 Northwood.

Maximum UV Index Levels in Northwood for September

The chart shows the monthly maximum UV Index (UVI) for Northwood 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 Northwood typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098533
Data source: Northwood 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 Northwood Compares to Other Months

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

This table compares monthly weather conditions in Northwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)35 mm (1.4 inches)82%moderate
February Weather-8°C (17°F)47 mm (1.8 inches)84%moderate
March Weather1°C (34°F)71 mm (2.8 inches)80%moderate
April Weather7°C (45°F)81 mm (3.2 inches)81%very high
May Weather15°C (60°F)152 mm (6.0 inches)74%very high
June Weather22°C (72°F)138 mm (5.4 inches)80%very high
July Weather23°C (74°F)96 mm (3.8 inches)80%very high
August Weather21°C (70°F)112 mm (4.4 inches)77%very high
September Weather18°C (65°F)111 mm (4.4 inches)75%very high
October Weather9°C (49°F)106 mm (4.2 inches)80%moderate
November Weather1°C (35°F)47 mm (1.8 inches)87%moderate
December Weather-3°C (26°F)37 mm (1.4 inches)83%moderate

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