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May Weather in Bethlehem, South Africa

Last updated: August 31, 2025

In May, the average temperature in Bethlehem, South Africa hovers around 11°C (53°F). Expect a chilly minimum of -3°C (28°F), while the mercury may rise to a pleasant 25°C (78°F). With an average humidity of 88%, you're likely to experience a damp atmosphere, complemented by 16 mm (0.6 in) of precipitation spread over 2 days. Prepare accordingly as the weather can be quite varied!

May Temperature in Bethlehem

In May in Bethlehem, the average temperature is 11°C (53°F). Maximums can reach 25°C (78°F), while minimums can drop as low as -3°C (28°F). Pack accordingly to enjoy a comfortable and varied climate during your travels.

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

The chart illustrates May temperature patterns in Bethlehem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethlehem, May typically has an average temperature of 11°C (53°F), with highs reaching up to 25°C (78°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec676664585247465259626566
Data source: Temperature data for Bethlehem 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.

May Precipitation in Bethlehem

In Bethlehem in May, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

May Precipitation Trends in Bethlehem

The chart displays monthly precipitation patterns in Bethlehem, 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 Bethlehem, May typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec11413587741662211350100154
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Bethlehem

In Bethlehem in May humidity is 88%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sluggish and uncomfortable as you navigate the damp air.

May Average Humidity in Bethlehem

This chart illustrates the average monthly humidity levels in Bethlehem, 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 Bethlehem is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%88%83%74%66%75%80%86%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Bethlehem

In Bethlehem 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 Bethlehem.

Maximum UV Index Levels in Bethlehem for May

The chart shows the monthly maximum UV Index (UVI) for Bethlehem 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 Bethlehem typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161311756811121417
Data source: Bethlehem 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 Bethlehem Compares to Other Months

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

This table compares monthly weather conditions in Bethlehem, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (67°F)114 mm (4.5 inches)85%extreme
February Weather19°C (67°F)135 mm (5.3 inches)85%extreme
March Weather18°C (64°F)86 mm (3.4 inches)86%extreme
April Weather15°C (59°F)74 mm (2.9 inches)87%extreme
May Weather11°C (53°F)16 mm (0.6 inches)88%high
June Weather8°C (47°F)6 mm (0.2 inches)83%moderate
July Weather8°C (47°F)2 mm (0.1 inches)74%high
August Weather11°C (52°F)21 mm (0.8 inches)66%very high
September Weather15°C (59°F)13 mm (0.5 inches)75%extreme
October Weather17°C (63°F)50 mm (2.0 inches)80%extreme
November Weather18°C (65°F)100 mm (3.9 inches)86%extreme
December Weather19°C (66°F)154 mm (6.1 inches)86%extreme

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