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September Weather in Jupiter Island, United States

Last updated: June 24, 2025

In September, the average temperature in Jupiter Island, United States hovers around 28°C (82°F), with a minimum of 25°C (77°F) and a maximum reaching 32°C (90°F). Be prepared for a bit of wet weather, as 179 mm (7.1 in) of precipitation is expected over 23 days, contributing to an average humidity of 83%. 🌧️

September Temperature in Jupiter Island

In September in Jupiter Island, the average temperature is 28°C (82°F), with maximums reaching 32°C (90°F) and minimums dropping to 25°C (77°F). It's an ideal time to visit for those who enjoy warm weather and outdoor activities.

September Weather in Jupiter Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Jupiter Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jupiter Island, September typically has an average temperature of 28°C (82°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec697272757881828382807572
Data source: Temperature data for Jupiter Island 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 Jupiter Island

In Jupiter Island in September, the precipitation amount is 179 mm (7.1 in) spread over 23 days.

September Precipitation Trends in Jupiter Island

The chart displays monthly precipitation patterns in Jupiter Island, 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 Jupiter Island, September typically receives around 179 mm (7.1 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec445337821431901721921791589756
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jupiter Island

In Jupiter Island in September humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

September Average Humidity in Jupiter Island

This chart illustrates the average monthly humidity levels in Jupiter Island, 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 Jupiter Island is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jupiter Island

In Jupiter Island in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Jupiter Island.

Maximum UV Index Levels in Jupiter Island for September

The chart shows the monthly maximum UV Index (UVI) for Jupiter Island 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 Jupiter Island typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101111121212111075
Data source: Jupiter Island 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 Jupiter Island Compares to Other Months

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

This table compares monthly weather conditions in Jupiter Island, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (69°F)44 mm (1.7 inches)83%high
February Weather22°C (72°F)53 mm (2.1 inches)80%very high
March Weather22°C (72°F)37 mm (1.5 inches)75%very high
April Weather24°C (76°F)82 mm (3.2 inches)68%extreme
May Weather25°C (78°F)143 mm (5.6 inches)65%extreme
June Weather27°C (81°F)190 mm (7.5 inches)73%extreme
July Weather28°C (83°F)172 mm (6.8 inches)77%extreme
August Weather28°C (83°F)192 mm (7.6 inches)80%extreme
September Weather28°C (82°F)179 mm (7.1 inches)83%extreme
October Weather27°C (80°F)158 mm (6.2 inches)83%very high
November Weather24°C (76°F)97 mm (3.8 inches)83%high
December Weather22°C (72°F)56 mm (2.2 inches)84%moderate

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