May weather forecastBruce, Guinea-Bissau
May
Weather in May
The last month of the spring, May, is another hot month in Bruce, Guinea-Bissau, with an average temperature ranging between min 24.4°C (75.9°F) and max 33.7°C (92.7°F).Temperature
Bruce marks the onset of May with an average high-temperature of a hot 33.7°C (92.7°F), subtly divergent from April's 35°C (95°F). During the month of May, Bruce experiences a steady low-temperature average of 24.4°C (75.9°F).Heat index
During May, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. 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 the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In May, the average relative humidity 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 Bruce, there are 107.5 rainfall days, and 726mm (28.58") of precipitation is accumulated.Daylight
The average length of the day in May in Bruce is 12h and 38min.On the first day of the month, sunrise is at 06:45 and sunset at 19:18. On the last day of May, in Bruce, sunrise is at 06:40 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 Bruce.UV index
The months with the highest UV index in Bruce are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bruce. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 7 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun 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
Bruce, 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
Bruce, 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
Bruce, 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
Bruce, 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
Bruce, 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
Bruce, 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
Bruce, Guinea-Bissau
- Average daylight in May: 12h and 36min
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 30min).
- 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
Bruce, 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
Bruce, 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
Bruce, 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
Bruce, 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).





