May weather forecast
Oman

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).

---

• Muscat - May »
  On the last day of the month, in Muscat, Oman, sunrise is at 05:19 and sunset at 18:48 +04. With an average relative humidity of 42%, May is the least humid month in Muscat, Oman.
• Seeb - May »
  Travellers should prepare for the heat and utilise the longer daylight hours for their explorations around Seeb, Oman. On the first day of May in Seeb sunrise is at 05:33 and sunset at 18:35.
• Salalah - May »
  With an average sea temperature of 29.1°C (84.4°F), May is the month with the warmest seawater in Salalah, Oman. With an average sea temperature of 29.1°C (84.4°F), May is the month with the warmest seawater in Salalah.
• Bawshar - May »
  On the last day of the month, sunrise is at 05:19 and sunset at 18:48 +04. In May, on the first day of the month, sunrise is at 05:32 and sunset at 18:34.
• Sohar - May »
  May is the least humid month in Sohar, with an average relative humidity of 63%. The months with the most sunshine in Sohar are May and June, with an average of 10.4h of sunshine.
• Nizwa - May »
  On the first day of May in Nizwa sunrise is at 05:37 and sunset at 18:36. The months with the highest UV index in Nizwa are April through September, with an average maximum UV index of 12.
• Sur - May »
  When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. The average heat index, which represents the influence of relative humidity on air temperature, in May is appraised at 62°C (143.6°F).
• Barka - May »
  On the first day of May in Barka sunrise is at 05:34 and sunset at 18:36. With an average relative humidity of 33%, May is the least humid month in Barka.
• Khasab - May »
  On the first day of May in Khasab sunrise is at 05:37 and sunset at 18:46. The transition from April to May in Khasab brings a subtle temperature rise, with average high-temperatures increasing from a hot 33.5°C (92.3°F) to a fiery hot 37.8°C (100°F).