May weather forecastOman

Weather in May

May in Oman ushers in the onset of the summer season, a time marked by intense heat and soaring temperatures. Across most regions, average temperatures escalate drastically, fluctuating between 30°C (86°F) and 40°C (104°F). This stark increase in heat represents a complete departure from the cooler winter and spring months, signaling the arrival of Oman's sweltering summer.

In the capital city of Muscat, May temperatures typically range from 28°C (82.4°F) to 40°C (104°F). In Salalah, the temperatures also rise but are moderated to some extent by its southern location, with averages hovering between 27°C (80.6°F) and 37°C (98.6°F).

The mountainous regions of Jebel Shams and Jebel Akhdar also experience increased temperatures during May, although they remain cooler compared to the lower-lying areas. Here, temperatures generally range from 25°C (77°F) to 35°C (95°F), offering a more temperate environment for those seeking respite from the intense heat.

Rainfall in May is minimal, with an average of about 10mm (0.39") across the country. The sporadic showers become even more infrequent, underscoring the arid nature of Oman's climate.

When compared to the ensuing summer months, May represents the start of the sweltering heat, a forewarning of the even higher temperatures to come. As the country continues into June, July, and August, visitors should prepare for increasingly hotter weather, characterized by temperatures often exceeding 40°C (104°F).

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• Muscat - May »
  May's onset in Muscat brings a subtle temperature rise, moving from a tropical 34.7°C (94.5°F) in April to a fiery hot 39.5°C (103.1°F). The least humid month in Muscat is May, with an average relative humidity of 42%.
• Seeb - May »
  On the last day of the month, in Seeb sunrise is at 05:20 and sunset at 18:49 +04. Travellers should prepare for the heat and utilise the longer daylight hours for their explorations around Seeb, Oman.
• Salalah - May »
  The month with the warmest seawater in Salalah is May, with an average sea temperature of 29.1°C (84.4°F). May, characterized by an average high temperature of 32.4°C (90.3°F) and a low temperature of 25.6°C (78.1°F), is generally the warmest month in Salalah.
• Bawshar - May »
  On the first day of May in Bawshar, sunrise is at 05:32 and sunset at 18:34. On the first day of May in Bawshar, sunrise is at 05:32 and sunset at 18:34.
• Sohar - May »
  On the last day of the month, in Sohar, sunrise is at 05:24 and sunset at 18:57 +04. May is the last month it rains in Sohar, Oman.
• Nizwa - May »
  On the last day of the month, in Nizwa, sunrise is at 05:24 and sunset at 18:50 +04. April through September, with an average maximum UV index of 12, are months with the highest UV index in Nizwa, Oman.
• Sur - May »
  Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. The average heat index, which represents the influence of relative humidity on air temperature, in May is calculated to be 62°C (143.6°F).
• Barka - May »
  With an average relative humidity of 33%, May is the least humid month in Barka, Oman. May is the month with the highest UV index in Barka with an average maximum UV index of 9.
• Khasab - May »
  Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth.