May weather forecast
Sif, Yemen

The last month of the spring, May, is also a hot month in Sif, Yemen, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 32.6°C (90.7°F).

Temperature

Sif, Yemen, observes a minor difference in average high-temperatures between April's 30.1°C (86.2°F) and May's 32.6°C (90.7°F). During May, the nighttime temperature in Sif averages of 25.5°C (77.9°F).

Heat index

The heat index for May is estimated at a very hot 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in May is 58%.

Rainfall

In Sif, in May, it is raining for 3.8 days, with typically 5mm (0.2") of accumulated precipitation. Throughout the year, there are 35.5 rainfall days, and 65mm (2.56") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 50min.
On the first day of the month, sunrise is at 05:22 and sunset at 18:04. On the last day of May, sunrise is at 05:15 and sunset at 18:13 +03.

Sunshine

In May, the average sunshine in Sif is 12.1h.

UV index

The average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.