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September Weather in Vinalhaven, United States

Last updated: June 24, 2025

In September, the average temperature in Vinalhaven, United States hovers around 16°C (60°F), with minimums dipping to 10°C (50°F) and maximums reaching 21°C (69°F). Expect a total precipitation of 102 mm (4.0 in) spread over approximately 8 days, accompanied by a notable average humidity of 80%. Be prepared for a blend of mild temperatures and moisture!

September Temperature in Vinalhaven

In September in Vinalhaven, the average temperature is 16°C (60°F). Maximums can reach 21°C (69°F), while minimums can be as low as 10°C (50°F). This pleasant climate makes it an ideal time for outdoor adventures and exploring the local sights.

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

The chart illustrates September temperature patterns in Vinalhaven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vinalhaven, September typically has an average temperature of 16°C (60°F), with highs reaching up to 21°C (69°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec313234414855616360544436
Data source: Temperature data for Vinalhaven 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 Vinalhaven

In Vinalhaven in September, the precipitation amount is 102 mm (4.0 in) over the course of 8 days.

September Precipitation Trends in Vinalhaven

The chart displays monthly precipitation patterns in Vinalhaven, 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 Vinalhaven, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051058313893859079102128128139
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vinalhaven

In Vinalhaven in September, humidity is 80%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick haze, making travel feel somewhat stifling and requiring frequent breaks to hydrate and cool down.

September Average Humidity in Vinalhaven

This chart illustrates the average monthly humidity levels in Vinalhaven, 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 Vinalhaven is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vinalhaven

In Vinalhaven in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Vinalhaven.

Maximum UV Index Levels in Vinalhaven for September

The chart shows the monthly maximum UV Index (UVI) for Vinalhaven 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 Vinalhaven typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Vinalhaven 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 Vinalhaven Compares to Other Months

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

This table compares monthly weather conditions in Vinalhaven, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)105 mm (4.1 inches)85%low
February Weather0°C (32°F)104 mm (4.1 inches)86%moderate
March Weather1°C (34°F)83 mm (3.3 inches)84%moderate
April Weather5°C (42°F)138 mm (5.4 inches)79%high
May Weather9°C (48°F)93 mm (3.7 inches)79%very high
June Weather13°C (56°F)85 mm (3.4 inches)86%very high
July Weather16°C (61°F)90 mm (3.6 inches)85%very high
August Weather17°C (63°F)79 mm (3.1 inches)83%very high
September Weather16°C (60°F)102 mm (4.0 inches)80%high
October Weather12°C (54°F)128 mm (5.0 inches)77%moderate
November Weather7°C (44°F)128 mm (5.0 inches)80%moderate
December Weather2°C (36°F)139 mm (5.5 inches)81%low

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