May weather forecastJoanna, Guyana
May
Weather in May
May, the last month of the spring in Joanna, is also a moderately hot month, with an average temperature varying between 25.3°C (77.5°F) and 28.8°C (83.8°F).Temperature
The arrival of May marks a slight shift to an average high-temperature of a still moderately hot 28.8°C (83.8°F) from April's 28.7°C (83.7°F). During the nights of May, Joanna records an average low-temperature of 25.3°C (77.5°F), reflecting a modest decrease from daytime highs.Heat index
May's heat index is computed to be a hot 34°C (93.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In May, the average relative humidity in Joanna is 81%.Rainfall
In Joanna, in May, it is raining for 28.1 days, with typically 285mm (11.22") of accumulated precipitation. Throughout the year, there are 312.6 rainfall days, and 2298mm (90.47") of precipitation is accumulated.Daylight
In May, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 05:35 and sunset at 17:56. On the last day of May, in Joanna, sunrise is at 05:33 and sunset at 18:00 -04.
Sunshine
In Joanna, the average sunshine in May is 7.3h.UV index
March and May, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in May translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Joanna, Guyana
- Average high temperature in May: 28.8°C
The warmest month (with the highest average high temperature) is September (30.8°C).
The months with the lowest average high temperature are January and February (28°C).
- Average low temperature in May: 25.3°C
The months with the highest average low temperature are September and October (25.9°C).
The coldest months (with the lowest average low temperature) are January, February and July (24.8°C).
Average pressure in May
Joanna, Guyana
- Average pressure in May: 1012.2mbar
The month with the highest atmospheric pressure is June (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in May
Joanna, Guyana
- Average wind speed in May: 15.1km/h
The windiest month (with the highest average wind speed) is March (16.7km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in May
Joanna, Guyana
- Average humidity in May: 81%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is September (76%).
Average rainfall in May
Joanna, Guyana
- Average rainfall in May: 285mm
The wettest month (with the highest rainfall) is June (314mm).
The driest month (with the least rainfall) is March (97mm).
Average rainfall days in May
Joanna, Guyana
- Average rainfall days in May: 28.1 days
The month with the highest number of rainy days is July (29.9 days).
The month with the least rainy days is October (23.5 days).
Average daylight in May /
Average sunshine in May
Joanna, Guyana
- Average daylight in May: 12h and 24min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in May: 7h and 18min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is April (Average sunshine: 7h and 0min).
Average sunshine days in May
Joanna, Guyana
- Average sunshine days in May: 1.3 days
The month with the most sunshine days is October (5 days).
The month with the least sunshine days is July (0.3 days).
Average UV index in May
Joanna, Guyana
- Average UV index in May: 6
The months with the highest UV index are January, February, April, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and May (UV index 6).
Average cloud cover in May
Joanna, Guyana
- Average cloud cover in May: 48
The months with the most cloud cover are February and April (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 24).
Average visibility in May
Joanna, Guyana
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, September, October and December (10km).
The months with the lowest visibility are May, June, July, August and November (9km).
