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July Weather in Johnstone, United Kingdom

Last updated: August 27, 2025

In July, the average temperature in Johnstone, United Kingdom is a pleasant 15°C (60°F). However, temperatures can swing from a cool 7°C (44°F) at night to a warm 27°C (82°F) during the day. Expect about 99 mm (3.9 in) of precipitation over 14 days, contributing to an average humidity of 82%. Perfect for those who enjoy a lush, green ambiance!

July Temperature in Johnstone

In July in Johnstone, the average temperature is 15°C (60°F), with maximums reaching 27°C (82°F) and minimums dipping to as low as 7°C (44°F). This pleasant weather makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates July temperature patterns in Johnstone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Johnstone, July typically has an average temperature of 15°C (60°F), with highs reaching up to 27°C (82°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec414143465257595955504542
Data source: Temperature data for Johnstone 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.

July Precipitation in Johnstone

In Johnstone in July, the precipitation amount is 99 mm (3.9 in) over the course of 14 days.

July Precipitation Trends in Johnstone

The chart displays monthly precipitation patterns in Johnstone, 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 Johnstone, July typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9113810946671129913398146118127
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Johnstone

In Johnstone in July humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.

July Average Humidity in Johnstone

This chart illustrates the average monthly humidity levels in Johnstone, 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 Johnstone is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Johnstone

In Johnstone in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Johnstone.

Maximum UV Index Levels in Johnstone for July

The chart shows the monthly maximum UV Index (UVI) for Johnstone 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 Johnstone typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Johnstone 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 Johnstone Compares to Other Months

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

This table compares monthly weather conditions in Johnstone, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)91 mm (3.6 inches)90%low
February Weather5°C (42°F)138 mm (5.4 inches)88%low
March Weather6°C (43°F)109 mm (4.3 inches)86%moderate
April Weather8°C (47°F)46 mm (1.8 inches)85%moderate
May Weather11°C (52°F)67 mm (2.6 inches)80%high
June Weather14°C (57°F)112 mm (4.4 inches)83%very high
July Weather15°C (60°F)99 mm (3.9 inches)82%very high
August Weather15°C (59°F)133 mm (5.2 inches)82%high
September Weather13°C (55°F)98 mm (3.8 inches)88%moderate
October Weather10°C (50°F)146 mm (5.8 inches)90%moderate
November Weather7°C (45°F)118 mm (4.6 inches)92%low
December Weather5°C (42°F)127 mm (5.0 inches)89%low

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