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June Weather in Castle Hill, Australia

Last updated: August 22, 2025

In June, the average temperature in Castle Hill, Australia is a pleasant 20°C (68°F). Expect nights to cool down to a minimum of 8°C (47°F), while daytime highs can reach up to 28°C (82°F). Prepare for some light rain, as precipitation averages around 21 mm (0.8 in) over 4 days, accompanied by an average humidity level of 71%.

June Temperature in Castle Hill

In June in Castle Hill, the average temperature is 20°C (68°F). Maximums can reach 28°C (82°F), while minimums can be as low as 8°C (47°F). This diverse temperature range makes it an ideal time for travelers to enjoy both warm daytime activities and cooler evenings in Castle Hill.

June Weather in Castle Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Castle Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castle Hill, June typically has an average temperature of 20°C (68°F), with highs reaching up to 28°C (82°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec818281777268687072778082
Data source: Temperature data for Castle Hill 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 Castle Hill

In Castle Hill in June, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

June Precipitation Trends in Castle Hill

The chart displays monthly precipitation patterns in Castle Hill, 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 Castle Hill, June typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec2902992286453211612123042127
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Castle Hill

In Castle Hill in June, humidity is 71%. With an average temperature of 20°C (68°F), this humidity feels like a warm, moist embrace that can quickly lead to discomfort for travelers. The air clings to your skin, making even short walks feel more strenuous, while reaching for a refreshing drink becomes essential to stay hydrated.

June Average Humidity in Castle Hill

This chart illustrates the average monthly humidity levels in Castle Hill, 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 Castle Hill is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%81%76%72%71%63%67%61%62%63%69%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Castle Hill

In Castle Hill in June, 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 Castle Hill.

Maximum UV Index Levels in Castle Hill for June

The chart shows the monthly maximum UV Index (UVI) for Castle Hill 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 Castle Hill typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781113141516
Data source: Castle Hill 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 Castle Hill Compares to Other Months

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

This table compares monthly weather conditions in Castle Hill, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (82°F)290 mm (11.4 inches)76%extreme
February Weather28°C (82°F)299 mm (11.8 inches)78%extreme
March Weather27°C (81°F)228 mm (9.0 inches)81%extreme
April Weather25°C (78°F)64 mm (2.5 inches)76%extreme
May Weather22°C (73°F)53 mm (2.1 inches)72%very high
June Weather20°C (68°F)21 mm (0.8 inches)71%high
July Weather20°C (68°F)16 mm (0.6 inches)63%very high
August Weather21°C (70°F)12 mm (0.5 inches)67%extreme
September Weather22°C (73°F)12 mm (0.5 inches)61%extreme
October Weather25°C (77°F)30 mm (1.2 inches)62%extreme
November Weather26°C (80°F)42 mm (1.7 inches)63%extreme
December Weather28°C (82°F)127 mm (5.0 inches)69%extreme

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