May weather forecast
Siuna, Nicaragua

May

Weather in May

The last month of the spring, May, is another tropical month in Siuna, Nicaragua, with an average temperature fluctuating between 31°C (87.8°F) and 21.3°C (70.3°F).

Temperature

Siuna's average high-temperature in May sits at a still hot 31°C (87.8°F), showing little difference from the previous month. In May, the recorded average low-temperature in Siuna is an agreeable 21.3°C (70.3°F).

Heat index

The average heat index in May is evaluated at a scorching 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Siuna, the average relative humidity in May is 84%.

Rainfall

In Siuna, in May, during 27.8 rainfall days, 186mm (7.32") of precipitation is typically accumulated. In Siuna, during the entire year, the rain falls for 280.4 days and collects up to 1233mm (48.54") of precipitation.

Daylight

The average length of the day in May is 12h and 46min.
On the first day of May in Siuna, sunrise is at 05:17 and sunset at 17:55. On the last day of the month, sunrise is at 05:10 and sunset at 18:03 CST.

Sunshine

The average sunshine in May is 6.4h.

UV index

The months with the highest UV index are February through July, September and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

How hot is May?
The average high-temperature and low-temperature in Siuna during May are 31°C (87.8°F) and 21.3°C (70.3°F) respectively. In May, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is evaluated at 42°C (107.6°F).
What is the average humidity in May?
The average relative humidity in May is 84%.
How many days does it rain in May?
In Siuna, during May, the rain falls for 27.8 days and regularly aggregates up to 186mm (7.32") of precipitation.
What is the average length of the day in May?
In Siuna, the average day length in May is 12h and 46min.
When is the sunrise / sunset in May?
In May, on the first day of the month, sunrise is at 05:17 and sunset at 17:55. On the last day of the month, sunrise is at 05:10 and sunset at 18:03 CST.
How long on average sun shines in May?
In Siuna, the average sunshine duration in May is 6.4h.
When is the highest UV index?
The months with the highest UV index are February through July, September and October, with an average maximum UV index of 6.
How high is the UV index in May?
In Siuna, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Siuna, Nicaragua
  • Average high temperature in May: 31°C

The warmest month (with the highest average high temperature) is April (32.3°C).
The month with the lowest average high temperature is January (27.7°C).

  • Average low temperature in May: 21.3°C

The month with the highest average low temperature is June (22°C).
The coldest months (with the lowest average low temperature) are February and March (18.7°C).

Average pressure in May
Siuna, Nicaragua
  • Average pressure in May: 1012.2mbar

The month with the highest atmospheric pressure is January (1014.9mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).

Average wind speed in May
Siuna, Nicaragua
  • Average wind speed in May: 4.8km/h

The windiest months (with the highest average wind speed) are January, March and December (6.3km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).

Average humidity in May
Siuna, Nicaragua
  • Average humidity in May: 84%

The month with the highest relative humidity is June (90%).
The month with the lowest relative humidity is April (77%).

Average rainfall in May
Siuna, Nicaragua
  • Average rainfall in May: 186mm

The wettest month (with the highest rainfall) is October (194mm).
The driest month (with the least rainfall) is March (26mm).

Average rainfall days in May
Siuna, Nicaragua
  • Average rainfall days in May: 27.8 days

The month with the highest number of rainy days is August (28.3 days).
The months with the least rainy days are January and February (17.8 days).

Average daylight in May /
Average sunshine in May
Siuna, Nicaragua
  • Average daylight in May: 12h and 5min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in May: 6h and 2min

The month with the most sunshine is April (Average sunshine: 7h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in May
Siuna, Nicaragua
  • Average sunshine days in May: 2.3 days

The month with the most sunshine days is December (11 days).
The month with the least sunshine days is June (1.6 days).

Average UV index in May
Siuna, Nicaragua
  • Average UV index in May: 6

The months with the highest UV index are February, March, April, May, June, July, September and October (UV index 6).
The months with the lowest UV index are January, August, November and December (UV index 5).

Average cloud cover in May
Siuna, Nicaragua
  • Average cloud cover in May: 64

The month with the most cloud cover is July (Cloud cover 74).
The month with the least cloud cover is April (Cloud cover 55).

Average visibility in May
Siuna, Nicaragua
  • Average visibility in May: 6km

The months with the highest visibility are March and April (7km).
The months with the lowest visibility are June, July, August, September, October and December (5km).

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