May weather forecast
First Savannah, Guyana

May

Weather in May

The last month of the spring, May, is another hot month in First Savannah, Guyana, with an average temperature fluctuating between 30.5°C (86.9°F) and 23.1°C (73.6°F).

Temperature

The start of May sees the average high-temperature at a still tropical 30.5°C (86.9°F), showing little difference from April's 30.8°C (87.4°F). The temperature dips to an average of 23.1°C (73.6°F) during May nights.

Heat index

May's heat index is appraised at a blisteringly hot 40°C (104°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In May, the average relative humidity is 82%.

Rainfall

In First Savannah, in May, during 28.8 rainfall days, 148mm (5.83") of precipitation is typically accumulated. In First Savannah, during the entire year, the rain falls for 312.9 days and collects up to 1254mm (49.37") of precipitation.

Daylight

The average length of the day in May is 12h and 25min.
On the first day of May, sunrise is at 05:37 and sunset at 17:58. On the last day of the month, sunrise is at 05:34 and sunset at 18:03 -04.

Sunshine

In May, the average sunshine is 8.2h.

UV index

The months with the lowest UV index in First Savannah are January, February, May, June and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

Is it hot in First Savannah during May?
The average high-temperature and low-temperature in First Savannah, Guyana, during May are 30.5°C (86.9°F) and 23.1°C (73.6°F) respectively. In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 40°C (104°F).
What is the average humidity in May in First Savannah?
In May, the average relative humidity in First Savannah, Guyana, is 82%.
How many days does it rain in May in First Savannah?
In May, in First Savannah, the rain falls for 28.8 days. Throughout May, 148mm (5.83") of precipitation is accumulated.
How many hours of daylight does First Savannah have in May?
The average day length in May in First Savannah, Guyana, is 12h and 25min.
When is the sunrise / sunset in May in First Savannah?
In May, on the first day of the month, sunrise is at 05:37 and sunset at 17:58. On the last day of the month, in First Savannah, sunrise is at 05:34 and sunset at 18:03 -04.
How long on average sun shines in May in First Savannah?
The average sunshine duration in May in First Savannah is 8.2h.
What is the month with the lowest UV index in First Savannah?
The months with the lowest UV index are January, February, May, June and December, with an average maximum UV index of 6.
How high is the UV index in May in First Savannah?
In First Savannah, Guyana, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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 - First Savannah, Guyana
Average temperature in May
First Savannah, Guyana
  • Average high temperature in May: 30.5°C

The warmest month (with the highest average high temperature) is September (33.1°C).
The month with the lowest average high temperature is January (29.3°C).

  • Average low temperature in May: 23.1°C

The month with the highest average low temperature is October (23.5°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in May - First Savannah, Guyana
Average pressure in May
First Savannah, Guyana
  • Average pressure in May: 1012.6mbar

The month with the highest atmospheric pressure is June (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in May - First Savannah, Guyana
Average wind speed in May
First Savannah, Guyana
  • Average wind speed in May: 6.7km/h

The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest months (with the lowest average wind speed) are July and August (5.1km/h).

Average humidity in May - First Savannah, Guyana
Average humidity in May
First Savannah, Guyana
  • Average humidity in May: 82%

The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are September and October (78%).

Average rainfall in May - First Savannah, Guyana
Average rainfall in May
First Savannah, Guyana
  • Average rainfall in May: 148mm

The wettest month (with the highest rainfall) is June (167mm).
The driest month (with the least rainfall) is September (55mm).

Average rainfall days in May - First Savannah, Guyana
Average rainfall days in May
First Savannah, Guyana
  • Average rainfall days in May: 28.8 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is August (20.8 days).

Average daylight in May / Average sunshine in May - First Savannah, Guyana
Average daylight in May /
Average sunshine in May
First Savannah, Guyana
  • Average daylight in May: 12h and 2min

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: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in May - First Savannah, Guyana
Average sunshine days in May
First Savannah, Guyana
  • Average sunshine days in May: 0.7 days

The month with the most sunshine days is August (8.5 days).
The month with the least sunshine days is December (0.3 days).

Average UV index in May - First Savannah, Guyana
Average UV index in May
First Savannah, Guyana
  • Average UV index in May: 6

The months with the highest UV index are March, April, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, May, June and December (UV index 6).

Average cloud cover in May - First Savannah, Guyana
Average cloud cover in May
First Savannah, Guyana
  • Average cloud cover in May: 55

The month with the most cloud cover is May (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in May - First Savannah, Guyana
Average visibility in May
First Savannah, Guyana
  • Average visibility in May: 8km

The months with the highest visibility are March and April (9km).
The months with the lowest visibility are June and July (7km).

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