June Weather in Port Jefferson Station, United States

Last updated: June 24, 2025

In Port Jefferson Station, United States, the average temperature in June is a pleasant 20°C (68°F), making it an ideal time to explore. Expect minimum temperatures to dip to around 10°C (50°F), while the mercury can rise to a maximum of 29°C (85°F). During this month, anticipate about 87 mm (3.4 in) of precipitation spread over 9 days, contributing to an average humidity level of 69%. Get ready for a refreshing blend of warm days and occasional showers!

June Temperature in Port Jefferson Station

In June in Port Jefferson Station, the average temperature is a pleasant 20°C (68°F), with maximums climbing to 29°C (85°F) and minimums dipping as low as 10°C (50°F). This moderate climate makes it an ideal destination for travelers seeking comfortable weather and outdoor activities.

June Weather in Port Jefferson Station: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Port Jefferson Station, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Jefferson Station, June typically has an average temperature of 20°C (68°F), with highs reaching up to 29°C (85°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec353640485868757569614840
Data source: Temperature data for Port Jefferson Station 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.

June Precipitation in Port Jefferson Station

In Port Jefferson Station in June, the precipitation amount is 87 mm (3.4 in), occurring over a span of 9 days.

June Precipitation Trends in Port Jefferson Station

The chart displays monthly precipitation patterns in Port Jefferson Station, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Port Jefferson Station, June typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec801121041321198713110394143103140
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Port Jefferson Station

In Port Jefferson Station in June, humidity is 69%. With an average temperature of 20°C (68°F), this humidity feels like walking through a warm, enveloping mist, making outdoor activities enjoyable yet a bit sticky, so it's best to stay hydrated and take breaks in the shade.

June Average Humidity in Port Jefferson Station

This chart illustrates the average monthly humidity levels in Port Jefferson Station, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Port Jefferson Station is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Port Jefferson Station

In Port Jefferson Station in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Port Jefferson Station.

Maximum UV Index Levels in Port Jefferson Station for June

The chart shows the monthly maximum UV Index (UVI) for Port Jefferson Station in June, 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 June, the maximum UV index in Port Jefferson Station typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Port Jefferson Station June 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 June Weather in Port Jefferson Station Compares to Other Months

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

This table compares monthly weather conditions in Port Jefferson Station, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)80 mm (3.1 inches)84%moderate
February Weather2°C (36°F)112 mm (4.4 inches)82%moderate
March Weather4°C (40°F)104 mm (4.1 inches)81%high
April Weather9°C (49°F)132 mm (5.2 inches)78%very high
May Weather14°C (58°F)119 mm (4.7 inches)69%very high
June Weather20°C (68°F)87 mm (3.4 inches)69%very high
July Weather24°C (76°F)131 mm (5.2 inches)62%very high
August Weather24°C (75°F)103 mm (4.0 inches)65%very high
September Weather21°C (70°F)94 mm (3.7 inches)68%very high
October Weather16°C (61°F)143 mm (5.6 inches)74%high
November Weather9°C (49°F)103 mm (4.0 inches)82%moderate
December Weather5°C (40°F)140 mm (5.5 inches)80%low

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