May weather forecast
Riyam, Oman

The last month of the spring, May, is a torrid month in Riyam, Oman, with an average temperature varying between 36°C (96.8°F) and 30.7°C (87.3°F).

Temperature

Observing a minor shift, the average high-temperature during May adjusts from April's hot 31.8°C (89.2°F) to a sweltering 36°C (96.8°F). Riyam records an average temperature drop to a tropical 30.7°C (87.3°F) in May.

Heat index

During May, the heat index is calculated to be a blistering 40°C (104°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

May is the least humid month, with an average relative humidity of 42%.

Rainfall

In May, in Riyam, the rain falls for 0.9 days. Throughout May, 3mm (0.12") of precipitation is accumulated. In Riyam, during the entire year, the rain falls for 21.4 days and collects up to 43mm (1.69") of precipitation.

Daylight

In Riyam, the average length of the day in May is 13h and 17min.
On the first day of the month, sunrise is at 05:31 and sunset at 18:34. On the last day of May, in Riyam, sunrise is at 05:18 and sunset at 18:48 +04.

Sunshine

May and August, with an average of 12.3h of sunshine, are months with the most sunshine.

UV index

May is the month with the highest UV index, with an average maximum UV index of 9. A UV Index estimate of 8 to 10 represents a very high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 9 in May suggests the following recommendations:
Never neglect to protect yourself. Eyes and skin can suffer swift damage. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Regardless of the cloudiness of the day, a sunscreen with SPF 30 or more should be applied and reapplied generously, specifically after swimming or outdoor exercise.