Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Sumatra's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's 77.5°F (25.3°C) to a still moderately hot 84.2°F (29°C). Nighttime temperature experiences an average drop to a refreshing 67.3°F (19.6°C) in May.Heat index
In May, the heat index is calculated to be a tropical 91.4°F (33°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Consider that heat index readings are for situations in the shade and light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
January, May and October, with an average relative humidity of 72%, are the least humid months.Rainfall
In May, the rain falls for 11.7 days. Throughout May, 1.69" (43mm) of precipitation is accumulated. In Sumatra, during the entire year, the rain falls for 164.7 days and collects up to 30.63" (778mm) of precipitation.Daylight
In May, the average length of the day is 13h and 40min.On the first day of May, sunrise is at 6:56 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 8:36 pm EDT.
Sunshine
May through July, with an average of 11h of sunshine, are months with the most sunshine.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily maximum UV index of 7 leads to the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Sumatra during May?
What are the least humid months?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Sumatra have in May?
When are sunrise and sunset in May?
What are the months with the most sunshine?
How long on average sun shines in May?
When is the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Sumatra, FL
- Average high temperature in May: 84.2°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in May: 67.3°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).
Average pressure in May
Sumatra, FL
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in May
Sumatra, FL
- Average wind speed in May: 6.1mph
The windiest months (with the highest average wind speed) are January and March (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Sumatra, FL
- Average humidity in May: 72%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, May and October (72%).
Average rainfall in May
Sumatra, FL
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in May
Sumatra, FL
- Average rainfall days in May: 11.7 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (7.5 days).
Average daylight in May /
Average sunshine in May
Sumatra, FL
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in May: 11h and 0min
The months with the most sunshine are May, June and July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Sumatra, FL
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in May
Sumatra, FL
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in May
Sumatra, FL
- Average cloud cover in May: 23
The months with the most cloud cover are February and December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in May
Sumatra, FL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sumatra, Florida, USA
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