May weather forecastBlom, Guinea-Bissau
May
Weather in May
May, the last month of the spring in Blom, is another tropical month, with temperature in the range of an average high of 33.7°C (92.7°F) and an average low of 24.4°C (75.9°F).Temperature
The transition into May shows a subtle variation to a tropical 33.7°C (92.7°F) from April's 35°C (95°F) in the average high-temperature. The nighttime temperature in Blom, during May, averages of 24.4°C (75.9°F).Heat index
Throughout May, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Blom, the average relative humidity in May is 60%.Rainfall
In May, the rain falls for 3.8 days. Throughout May, 7mm (0.28") of precipitation is accumulated. Throughout the year, in Blom, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.Daylight
The average length of the day in May is 12h and 41min.On the first day of the month, sunrise is at 06:43 and sunset at 19:17. On the last day of May, in Blom, sunrise is at 06:37 and sunset at 19:24 GMT.
Sunshine
March through May, with an average of 9.9h of sunshine, are months with the most sunshine in Blom.UV index
The months with the highest UV index in Blom, Guinea-Bissau, are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 7 translates into these guidelines:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Blom, Guinea-Bissau
- Average high temperature in May: 33.7°C
The warmest month (with the highest average high temperature) is March (35.5°C).
The month with the lowest average high temperature is August (29.6°C).
- Average low temperature in May: 24.4°C
The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).
Average pressure in May
Blom, Guinea-Bissau
- Average pressure in May: 1011.1mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1010.1mbar).
Average wind speed in May
Blom, Guinea-Bissau
- Average wind speed in May: 13.1km/h
The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (9km/h).
Average humidity in May
Blom, Guinea-Bissau
- Average humidity in May: 60%
The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (32%).
Average rainfall in May
Blom, Guinea-Bissau
- Average rainfall in May: 7mm
The wettest month (with the highest rainfall) is August (270mm).
The driest months (with the least rainfall) are January and February (0mm).
Average rainfall days in May
Blom, Guinea-Bissau
- Average rainfall days in May: 3.8 days
The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is January (0.3 days).
Average daylight in May /
Average sunshine in May
Blom, Guinea-Bissau
- Average daylight in May: 12h and 42min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in May: 9h and 54min
The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in May
Blom, Guinea-Bissau
- Average sunshine days in May: 25.8 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in May
Blom, Guinea-Bissau
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in May
Blom, Guinea-Bissau
- Average cloud cover in May: 13
The month with the most cloud cover is August (Cloud cover 57).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility in May
Blom, Guinea-Bissau
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).





