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June Weather in Islip, United States

Last updated: June 24, 2025

In Islip, United States, the average temperature in June hovers around 20°C (68°F), creating a pleasantly mild climate. Expect minimum temperatures to dip to 10°C (51°F) and rise as high as 28°C (83°F). With an average precipitation amount of 86 mm (3.4 in) spread across approximately 10 days, it's wise to keep your umbrella handy. The average humidity sits at a comfortable 69%, ensuring that the weather feels just right for outdoor explorations.

June Temperature in Islip

In June in Islip, the average temperature is 20°C (68°F). The maximum can reach 28°C (83°F), while the minimum can be as low as 10°C (51°F). This pleasant climate makes Islip an ideal destination for outdoor activities and exploration.

June Weather in Islip: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Islip, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Islip, June typically has an average temperature of 20°C (68°F), with highs reaching up to 28°C (83°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec363740485768757570614941
Data source: Temperature data for Islip 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 Islip

In Islip in June, the precipitation amount is 86 mm (3.4 in) over the course of 10 days.

June Precipitation Trends in Islip

The chart displays monthly precipitation patterns in Islip, 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 Islip, June typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec831181071301238613010996142105138
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Islip

In Islip 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 Islip

This chart illustrates the average monthly humidity levels in Islip, 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 Islip 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 Islip

In Islip 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 Islip.

Maximum UV Index Levels in Islip for June

The chart shows the monthly maximum UV Index (UVI) for Islip 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 Islip typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Islip 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 Islip Compares to Other Months

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

This table compares monthly weather conditions in Islip, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)82 mm (3.2 inches)84%moderate
February Weather3°C (37°F)118 mm (4.6 inches)82%moderate
March Weather5°C (41°F)107 mm (4.2 inches)81%high
April Weather9°C (49°F)130 mm (5.1 inches)78%very high
May Weather14°C (58°F)123 mm (4.9 inches)69%very high
June Weather20°C (68°F)86 mm (3.4 inches)69%very high
July Weather24°C (76°F)130 mm (5.1 inches)62%very high
August Weather24°C (75°F)109 mm (4.3 inches)65%very high
September Weather21°C (70°F)96 mm (3.8 inches)68%very high
October Weather16°C (61°F)142 mm (5.6 inches)74%high
November Weather9°C (49°F)105 mm (4.1 inches)82%moderate
December Weather5°C (41°F)138 mm (5.4 inches)80%low

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