May Weather in Orkney, South Africa

Last updated: August 31, 2025

In May, the average temperature in Orkney, South Africa hovers around 14°C (58°F), offering a mild climate. Expect variations, with minimums dipping to -1°C (30°F) and maximums soaring to 29°C (84°F). Precipitation is relatively light, averaging 6 mm (0.2 in) over just 1 day, while humidity remains comfortable at around 70%. Whether you're planning a visit or simply curious, this weather sets the stage for pleasant experiences!

May Temperature in Orkney

In May in Orkney, the average temperature is 14°C (58°F), with maximums reaching 29°C (84°F) and minimums dipping as low as -1°C (30°F). This climate varies significantly, so travelers should be prepared for both warm days and cooler nights.

May Weather in Orkney: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Orkney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orkney, May typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Orkney

In Orkney in May, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

May Precipitation Trends in Orkney

The chart displays monthly precipitation patterns in Orkney, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Orkney, May typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Orkney

In Orkney in May, humidity is 70%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace that can make outdoor activities feel sticky and exhausting, potentially limiting your exploration to cooler hours of the day.

May Average Humidity in Orkney

This chart illustrates the average monthly humidity levels in Orkney, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Orkney is approximately 70%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Orkney

In Orkney in May, 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 Orkney.

Maximum UV Index Levels in Orkney for May

The chart shows the monthly maximum UV Index (UVI) for Orkney in May, 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 May, the maximum UV index in Orkney typically reaches 7, which falls under the high exposure category.

Data source: Orkney May 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 May Weather in Orkney Compares to Other Months

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

This table compares monthly weather conditions in Orkney, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	94 mm (3.7 inches)	71%	extreme
February Weather	22°C (73°F)	104 mm (4.1 inches)	70%	extreme
March Weather	21°C (70°F)	53 mm (2.1 inches)	74%	extreme
April Weather	18°C (64°F)	59 mm (2.3 inches)	75%	extreme
May Weather	14°C (58°F)	6 mm (0.2 inches)	70%	high
June Weather	11°C (52°F)	8 mm (0.3 inches)	65%	moderate
July Weather	10°C (51°F)	2 mm (0.1 inches)	59%	high
August Weather	14°C (58°F)	4 mm (0.2 inches)	56%	very high
September Weather	19°C (66°F)	6 mm (0.2 inches)	56%	extreme
October Weather	21°C (70°F)	40 mm (1.6 inches)	54%	extreme
November Weather	22°C (73°F)	74 mm (2.9 inches)	59%	extreme
December Weather	23°C (74°F)	123 mm (4.8 inches)	67%	extreme