May weather forecastFong Sali, Laos
May
Weather in May
May in Fong Sali, Laos, starts to signal the onset of the monsoon season with a marked increase in rainfall. This tropical torrent brings a certain degree of tranquillity while also intensifying the humidity. The buzzing heat experienced is steep, but the city’s weather offers ample daylight and sunshine hours, ensuring a balance. However, cloud cover is more prominent, offering shelter from the searing sun. The accompanying high temperature of around 30.8°C (87.4°F) reflects the true essence of Laos's tropical climate.Temperature
May notes an average high-temperature of a still hot 30.8°C (87.4°F), subtly differing from April's 31.2°C (88.2°F). Fong Sali demonstrates a significant disparity from daytime highs throughout the month of May, with an average nighttime temperature of 18.6°C (65.5°F).Heat index
During May, the heat index is estimated at a very hot 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in May is 73%.Rainfall
In May, the rain falls for 23.6 days. Throughout May, 117mm (4.61") of precipitation is accumulated. Throughout the year, there are 220.4 rainfall days, and 1213mm (47.76") of precipitation is accumulated.Snowfall
In Fong Sali, snow does not fall in February through December.Daylight
The average length of the day in May is 13h and 11min.On the first day of the month, sunrise is at 05:39 and sunset at 18:37. On the last day of May, sunrise is at 05:27 and sunset at 18:50 +07.
Sunshine
In May, the average sunshine is 10h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fong Sali, Laos
- Average high temperature in May: 30.8°C
The warmest month (with the highest average high temperature) is April (31.2°C).
The months with the lowest average high temperature are January and December (22°C).
- Average low temperature in May: 18.6°C
The month with the highest average low temperature is June (19.3°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).
Average pressure in May
Fong Sali, Laos
- Average pressure in May: 1007.7mbar
The month with the highest atmospheric pressure is December (1016.5mbar).
The months with the lowest atmospheric pressure are June and July (1005.7mbar).
Average wind speed in May
Fong Sali, Laos
- Average wind speed in May: 4.3km/h
The windiest month (with the highest average wind speed) is March (5km/h).
The calmest months (with the lowest average wind speed) are August, September and November (3.2km/h).
Average humidity in May
Fong Sali, Laos
- Average humidity in May: 73%
The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is March (52%).
Average rainfall in May
Fong Sali, Laos
- Average rainfall in May: 117mm
The wettest month (with the highest rainfall) is July (245mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in May
Fong Sali, Laos
- Average rainfall days in May: 23.6 days
The month with the highest number of rainy days is August (30.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in May
Fong Sali, Laos
- Average snowfall in May: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Fong Sali, Laos
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Fong Sali, Laos
- Average daylight in May: 13h and 12min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is April (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days in May
Fong Sali, Laos
- Average sunshine days in May: 6.4 days
The month with the most sunshine days is February (20.7 days).
The month with the least sunshine days is August (0.3 days).
Average UV index in May
Fong Sali, Laos
- Average UV index in May: 5
The months with the highest UV index are March, April, July and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Fong Sali, Laos
- Average cloud cover in May: 42
The month with the most cloud cover is July (Cloud cover 71).
The month with the least cloud cover is March (Cloud cover 19).
Average visibility in May
Fong Sali, Laos
- Average visibility in May: 8km
The month with the highest visibility is March (10km).
The months with the lowest visibility are January, July, August, September, November and December (6km).





