July Weather in Rosslyn, United States

Last updated: June 24, 2025

In July, the average temperature in Rosslyn, United States hovers around 27°C (81°F). Expect a comfortable minimum of 15°C (59°F) and the occasional peak at a sizzling 38°C (101°F). With an average humidity of 74%, you'll want to stay hydrated during your adventures. Just be prepared for 157 mm (6.2 in) of precipitation spread over 12 days—a perfect time to explore the lush landscapes!

July Temperature in Rosslyn

In July, in Rosslyn, the average temperature is 27°C (81°F). The maximum can reach 38°C (101°F), while the minimum can drop as low as 15°C (59°F). This range makes Rosslyn an ideal destination for travelers seeking warm weather with the option for cooler evenings.

July Weather in Rosslyn: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Rosslyn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosslyn, July typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (101°F) and lows dropping to around 15°C (59°F).

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

July Precipitation in Rosslyn

In Rosslyn in July, the total precipitation amount is 157 mm (6.2 in), which falls over the course of 12 days.

July Precipitation Trends in Rosslyn

The chart displays monthly precipitation patterns in Rosslyn, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Rosslyn, July typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Rosslyn

In Rosslyn in July humidity is 74%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket, making traveling feel both sticky and draining, yet the heat invites you to seek out refreshing dips in pools or shady spots to relax.

July Average Humidity in Rosslyn

This chart illustrates the average monthly humidity levels in Rosslyn, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Rosslyn is approximately 74%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Rosslyn

In Rosslyn in July, 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 Rosslyn.

Maximum UV Index Levels in Rosslyn for July

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

Data source: Rosslyn July 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 July Weather in Rosslyn Compares to Other Months

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

This table compares monthly weather conditions in Rosslyn, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	61 mm (2.4 inches)	84%	moderate
February Weather	5°C (41°F)	98 mm (3.9 inches)	83%	moderate
March Weather	8°C (46°F)	87 mm (3.4 inches)	83%	high
April Weather	14°C (57°F)	100 mm (4.0 inches)	81%	very high
May Weather	19°C (66°F)	127 mm (5.0 inches)	78%	very high
June Weather	24°C (75°F)	118 mm (4.7 inches)	79%	very high
July Weather	27°C (81°F)	157 mm (6.2 inches)	74%	very high
August Weather	25°C (77°F)	140 mm (5.5 inches)	72%	very high
September Weather	22°C (72°F)	95 mm (3.8 inches)	75%	very high
October Weather	17°C (62°F)	104 mm (4.1 inches)	81%	high
November Weather	8°C (47°F)	81 mm (3.2 inches)	85%	moderate
December Weather	5°C (41°F)	93 mm (3.7 inches)	84%	moderate