May weather forecastCatió, Guinea-Bissau
May
Weather in May
May introduces a significant uptick in rainfall, measuring at 16mm (0.63"), indicative of Catió's wet season. The city transitions from the too hot summer days to a humid, rainy atmosphere with an appreciable dip in the temperature. The increased cloud cover, coupled with regular showers, contributes to moderate conditions amidst the rain-dominated phase. Despite the increased precipitation, sunlight endures slightly longer hours, producing somewhat clammy weather. Respectively, the city records a surge in humidity levels, announcing the official commencement of the monsoo showers.Temperature
Catió signifies an average high-temperature of a still very hot 37.6°C (99.7°F) in May, closely mirroring the 39.5°C (103.1°F) of April. The nighttime temperature during May exhibits a clear drop from daytime highs, settling at a warm 23.2°C (73.8°F).Heat index
The heat index value for May is estimated at a life-threatening hot 53°C (127.4°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In Catió, the average relative humidity in May is 59%.Rainfall
In May, the rain falls for 4.4 days. Throughout May, 16mm (0.63") of precipitation is accumulated. Throughout the year, there are 109.7 rainfall days, and 868mm (34.17") of precipitation is accumulated.Daylight
In Catió, the average length of the day in May is 12h and 39min.On the first day of the month, sunrise is at 06:41 and sunset at 19:14. On the last day of May, sunrise is at 06:36 and sunset at 19:21 GMT.
Sunshine
In May, the average sunshine is 9.7h.UV index
The months with the highest UV index in Catió are January through July, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 7 transforms into these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Catió, Guinea-Bissau
- Average high temperature in May: 37.6°C
The warmest month (with the highest average high temperature) is March (40.2°C).
The month with the lowest average high temperature is August (29.9°C).
- Average low temperature in May: 23.2°C
The month with the highest average low temperature is June (25.1°C).
The coldest month (with the lowest average low temperature) is February (18.5°C).
Average pressure in May
Catió, Guinea-Bissau
- Average pressure in May: 1011.1mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is April (1010mbar).
Average wind speed in May
Catió, Guinea-Bissau
- Average wind speed in May: 9.4km/h
The windiest month (with the highest average wind speed) is May (9.4km/h).
The calmest month (with the lowest average wind speed) is October (5.7km/h).
Average humidity in May
Catió, Guinea-Bissau
- Average humidity in May: 59%
The months with the highest relative humidity are August and September (85%).
The month with the lowest relative humidity is January (32%).
Average rainfall in May
Catió, Guinea-Bissau
- Average rainfall in May: 16mm
The wettest month (with the highest rainfall) is August (286mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in May
Catió, Guinea-Bissau
- Average rainfall days in May: 4.4 days
The month with the highest number of rainy days is August (25.7 days).
The months with the least rainy days are January and February (0 days).
Average daylight in May /
Average sunshine in May
Catió, 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 42min
The month with the most sunshine is March (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 6min).
Average sunshine days in May
Catió, Guinea-Bissau
- Average sunshine days in May: 25.8 days
The month with the most sunshine days is January (30.9 days).
The month with the least sunshine days is August (4 days).
Average UV index in May
Catió, Guinea-Bissau
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, September, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 6).
Average cloud cover in May
Catió, Guinea-Bissau
- Average cloud cover in May: 17
The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is March (Cloud cover 7).
Average visibility in May
Catió, Guinea-Bissau
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (8km).





