May weather forecastBiseh, Iran
May
Weather in May
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Biseh, Iran
- Average high temperature in May: 31.4°C
The warmest month (with the highest average high temperature) is August (34.6°C).
The month with the lowest average high temperature is January (21.8°C).
- Average low temperature in May: 29.7°C
The month with the highest average low temperature is August (32.9°C).
The coldest months (with the lowest average low temperature) are January and February (20.3°C).
Average pressure in May
Biseh, Iran
- Average pressure in May: 1005.1mbar
The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is July (996.4mbar).
Average wind speed in May
Biseh, Iran
- Average wind speed in May: 19.1km/h
The windiest month (with the highest average wind speed) is May (19.1km/h).
The calmest months (with the lowest average wind speed) are July and September (13.3km/h).
Average humidity in May
Biseh, Iran
- Average humidity in May: 58%
The month with the highest relative humidity is August (69%).
The month with the lowest relative humidity is November (53%).
Average rainfall in May
Biseh, Iran
- Average rainfall in May: 1mm
The wettest months (with the highest rainfall) are March and December (15mm).
The driest months (with the least rainfall) are June, July, August, September and October (0mm).
Average rainfall days in May
Biseh, Iran
- Average rainfall days in May: 0.4 days
The month with the highest number of rainy days is March (4.3 days).
The months with the least rainy days are June and September (0 days).
Average daylight in May /
Average sunshine in May
Biseh, Iran
- Average daylight in May: 13h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 11h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 7h and 12min).
Average sunshine days in May
Biseh, Iran
- Average sunshine days in May: 30.4 days
The months with the most sunshine days are July and August (30.8 days).
The month with the least sunshine days is February (25.5 days).
Average UV index in May
Biseh, Iran
- Average UV index in May: 8
The months with the highest UV index are May, June, July, August and September (UV index 8).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in May
Biseh, Iran
- Average cloud cover in May: 5
The months with the most cloud cover are February and April (Cloud cover 14).
The months with the least cloud cover are June, September and October (Cloud cover 2).
Average visibility in May
Biseh, Iran
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





