June Weather in Sylvan, United States

Last updated: June 24, 2025

In June, the average temperature in Sylvan, United States hovers around 21°C (70°F). Visitors can expect a range from a cool 8°C (47°F) to a warm 34°C (94°F). With an average humidity level of 79%, the atmosphere can feel quite muggy. Rainfall is also notable, with 125 mm (4.9 in) spread over 11 days, making it wise to pack an umbrella!

June Temperature in Sylvan

In June in Sylvan, the average temperature is 21°C (70°F). Maximums can reach 34°C (94°F), while minimums can drop to as low as 8°C (47°F). This makes Sylvan an ideal destination for travelers seeking mild weather with the possibility of warm days and cool evenings.

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

The chart illustrates June temperature patterns in Sylvan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sylvan, June typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 8°C (47°F).

Data source: Temperature data for Sylvan generated using information from the Copernicus Climate Change Service.

June Precipitation in Sylvan

In Sylvan in June, the precipitation amount is 125 mm (4.9 in) over the course of 11 days.

June Precipitation Trends in Sylvan

The chart displays monthly precipitation patterns in Sylvan, 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 Sylvan, June typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Sylvan

In Sylvan in June humidity is 79%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making outdoor exploration a bit sticky but still enjoyable for travelers who appreciate the lush, vibrant atmosphere.

June Average Humidity in Sylvan

This chart illustrates the average monthly humidity levels in Sylvan, 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 Sylvan is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Sylvan

In Sylvan 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 Sylvan.

Maximum UV Index Levels in Sylvan for June

The chart shows the monthly maximum UV Index (UVI) for Sylvan 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 Sylvan typically reaches 10, which falls under the very high exposure category.

Data source: Sylvan 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 Sylvan Compares to Other Months

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

This table compares monthly weather conditions in Sylvan, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	39 mm (1.5 inches)	84%	low
February Weather	-6°C (22°F)	54 mm (2.1 inches)	85%	moderate
March Weather	2°C (36°F)	59 mm (2.3 inches)	84%	moderate
April Weather	7°C (46°F)	87 mm (3.4 inches)	83%	very high
May Weather	15°C (59°F)	135 mm (5.3 inches)	75%	very high
June Weather	21°C (70°F)	125 mm (4.9 inches)	79%	very high
July Weather	23°C (74°F)	103 mm (4.1 inches)	75%	very high
August Weather	21°C (71°F)	101 mm (4.0 inches)	69%	very high
September Weather	18°C (65°F)	120 mm (4.7 inches)	74%	very high
October Weather	10°C (50°F)	120 mm (4.7 inches)	79%	moderate
November Weather	2°C (35°F)	52 mm (2.1 inches)	88%	moderate
December Weather	-2°C (28°F)	44 mm (1.7 inches)	82%	low