May weather forecast
Biseh, Iran

The last month of the spring, May, is a hot month in Biseh, Iran, with an average temperature varying between 31.4°C (88.5°F) and 29.7°C (85.5°F).

Temperature

The start of May brings a subtle shift in the average high-temperature, edging up from April's moderately hot 27.4°C (81.3°F) to a hot 31.4°C (88.5°F). Biseh's nighttime temperature in May consistently rests at a warm 29.7°C (85.5°F).

Heat index

In May, the average heat index is computed to be a sweltering 35°C (95°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In May, the average relative humidity is 58%.

Rainfall

May is the last month it rains in Biseh, Iran. During 0.4 rainfall days, in May, Biseh aggregates 1mm (0.04") of precipitation. In Biseh, during the entire year, the rain falls for 19 days and collects up to 69mm (2.72") of precipitation.

Daylight

The average length of the day in May in Biseh is 13h and 30min.
On the first day of the month, sunrise is at 05:13 and sunset at 18:26. On the last day of May, in Biseh, sunrise is at 04:57 and sunset at 18:43 +0330.

Sunshine

The average sunshine in May is 11.9h.

UV index

The months with the highest UV index in Biseh are May through September, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 8 in May interprets into the following advice:
Always be careful, as unprotected skin and eyes might burn in no time. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.