May weather forecast
Half Moon Bay, Cayman Islands

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Weather in May

May marks a significant difference compared to the previous months in Half Moon Bay, highlighted by a substantial increase in precipitation with an average rainfall of 108mm (4.25"). Accompanied by a hike in temperature range to between 27.2°C (81°F) and 28°C (82.4°F), this month signals the beginning of the warmer part of the year. The tropical essence of Half Moon Bay intensifies with this slight shift as the warmth, humidity, and rainfall paint a more vibrant picture of its lush landscape. It is the ideal month for those appreciative of the enriching tropical rainforest climate.

Temperature

Half Moon Bay experiences a minor change to a still warm 28°C (82.4°F) in average high-temperature during May, closely reflecting April. Half Moon Bay experiences a subtle drop in temperature during the May nights, recording an average of 27.2°C (81°F).

Heat index

During May, the heat index is computed to be a tropical 32°C (89.6°F). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In Half Moon Bay, the average relative humidity in May is 77%.

Rainfall

In Half Moon Bay, in May, it is raining for 21.3 days, with typically 108mm (4.25") of accumulated precipitation. In Half Moon Bay, during the entire year, the rain falls for 241.1 days and collects up to 854mm (33.62") of precipitation.

Daylight

In Half Moon Bay, the average length of the day in May is 13h and 3min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:47. On the last day of May, sunrise is at 05:45 and sunset at 18:58 EST.

Sunshine

The months with the most sunshine in Half Moon Bay are May and July, with an average of 10.6h of sunshine.

UV index

February through December, 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 threat to health from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

How hot does it get in Half Moon Bay in May?

In May, the average high-temperature and low-temperature in Half Moon Bay are 28°C (82.4°F) and 27.2°C (81°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 computed to be 32°C (89.6°F).

What is the average humidity in May in Half Moon Bay?

In Half Moon Bay, the average relative humidity in May is 77%.

How many days does it rain in May in Half Moon Bay?

In Half Moon Bay, Cayman Islands, during May, the rain falls for 21.3 days and regularly aggregates up to 108mm (4.25") of precipitation.

How many hours of daylight does Half Moon Bay have in May?

In May, the average day length in Half Moon Bay is 13h and 3min.

What time are sunrise and sunset in May in Half Moon Bay?

In May, on the first day of the month, sunrise is at 05:55 and sunset at 18:47. On the last day of the month, in Half Moon Bay, Cayman Islands, sunrise is at 05:45 and sunset at 18:58 EST.

What is the month with the most sunshine in Half Moon Bay?

May and July, with an average of 10.6h of sunshine, are months with the most sunshine in Half Moon Bay, Cayman Islands.

How many hours of sunshine does Half Moon Bay have in May?

The average sunshine duration in May in Half Moon Bay, Cayman Islands, is 10.6h.

When is the highest UV index in Half Moon Bay?

February through December, with an average maximum UV index of 7, are months with the highest UV index in Half Moon Bay.

What is the UV index intensity in May in Half Moon Bay?

In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.

Average temperature in May
Half Moon Bay, Cayman Islands

Average temperature in May - Half Moon Bay, Cayman Islands
  • Average high temperature in May: 28°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is February (26.2°C).

  • Average low temperature in May: 27.2°C

The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is March (24.9°C).

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Average pressure in May
Half Moon Bay, Cayman Islands

Average pressure in May - Half Moon Bay, Cayman Islands
  • Average pressure in May: 1013.6mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).

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Average wind speed in May
Half Moon Bay, Cayman Islands

Average wind speed in May - Half Moon Bay, Cayman Islands
  • Average wind speed in May: 20.5km/h

The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is September (17.2km/h).

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Average humidity in May
Half Moon Bay, Cayman Islands

Average humidity in May - Half Moon Bay, Cayman Islands
  • Average humidity in May: 77%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is September (74%).

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Average rainfall in May
Half Moon Bay, Cayman Islands

Average rainfall in May - Half Moon Bay, Cayman Islands
  • Average rainfall in May: 108mm

The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is March (24mm).

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Average rainfall days in May
Half Moon Bay, Cayman Islands

Average rainfall days in May - Half Moon Bay, Cayman Islands
  • Average rainfall days in May: 21.3 days

The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is March (16 days).

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Average daylight in May /
Average sunshine in May
Half Moon Bay, Cayman Islands

Average daylight in May / Average sunshine in May - Half Moon Bay, Cayman Islands
  • Average daylight in May: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in May: 10h and 4min

The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in May
Half Moon Bay, Cayman Islands

Average sunshine days in May - Half Moon Bay, Cayman Islands
  • Average sunshine days in May: 6.3 days

The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is November (2.5 days).

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Average UV index in May
Half Moon Bay, Cayman Islands

Average UV index in May - Half Moon Bay, Cayman Islands
  • Average UV index in May: 7

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

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Average cloud cover in May
Half Moon Bay, Cayman Islands

Average cloud cover in May - Half Moon Bay, Cayman Islands
  • Average cloud cover in May: 33

The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 28).

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Average visibility in May
Half Moon Bay, Cayman Islands

Average visibility in May - Half Moon Bay, Cayman Islands
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Half Moon Bay, Cayman Islands

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