May weather forecast
Castle Bruce, Dominica

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Weather in May

May signifies the approach of peak summer with a steady rise in temperature. Weather conditions experience a turn towards the wetter side, with the rainfall up to 61mm (2.4"). The wind speed remains nearly constant at an average of 24.1km/h (15mph), and the daylight and sunshine hours continue to increase. Despite the larger quantity of rainfall, May flaunts broad daylight ands ample sunshine. These conditions make May a typically warm and light-filled month in Castle Bruce, mirroring the global trend amidst the progressing summer season.

Temperature

The arrival of May denotes a barely perceptible change in the average high-temperatures to a still warm 27.9°C (82.2°F) from April's 27.1°C (80.8°F). Castle Bruce logs an average low-temperature of 26.6°C (79.9°F) during the nights of May, subtly lower than its daytime highs.

Heat index

The heat index for May is calculated to be a hot 31°C (87.8°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Castle Bruce, Dominica, in May, it is raining for 22.3 days, with typically 61mm (2.4") of accumulated precipitation. In Castle Bruce, during the entire year, the rain falls for 249.5 days and collects up to 786mm (30.94") of precipitation.

Sea temperature

In Castle Bruce, in May, the average water temperature is 28.2°C (82.8°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In May, the average length of the day is 12h and 51min.
On the first day of the month, sunrise is at 05:40 and sunset at 18:23. On the last day of May, in Castle Bruce, sunrise is at 05:33 and sunset at 18:32 AST.

Sunshine

In May, the average sunshine is 9.7h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Castle Bruce. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be on guard! The reflective nature of sand and water boosts UV exposure.

Frequently asked questions

What are the temperatures in Castle Bruce in May?

The high-temperature, in May, in Castle Bruce, records 27.9°C (82.2°F), while the low-temperature is 26.6°C (79.9°F). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 31°C (87.8°F).

What is the average humidity in May in Castle Bruce?

In Castle Bruce, Dominica, the average relative humidity in May is 77%.

How much does it rain in Castle Bruce in May?

In May, in Castle Bruce, the rain falls for 22.3 days. Throughout May, 61mm (2.4") of precipitation is accumulated.

How warm is the water in May in Castle Bruce?

In Castle Bruce, in May, the average water temperature is 28.2°C (82.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Castle Bruce have in May?

The average day length in May is 12h and 51min.

When are sunrise and sunset in May in Castle Bruce?

In May, on the first day of the month, sunrise is at 05:40 and sunset at 18:23. On the last day of the month, in Castle Bruce, sunrise is at 05:33 and sunset at 18:32 AST.

How many hours of sunshine does Castle Bruce have in May?

In May, the average sunshine duration in Castle Bruce is 9.7h.

When is the highest UV index in Castle Bruce?

The months with the highest UV index in Castle Bruce are January through December, with an average maximum UV index of 7.

When is the lowest UV index in Castle Bruce?

The months with the lowest UV index in Castle Bruce, Dominica, are January through December, with an average maximum UV index of 7.

What is the UV index intensity in May in Castle Bruce?

In Castle Bruce, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in May
Castle Bruce, Dominica

Average temperature in May - Castle Bruce, Dominica
  • Average high temperature in May: 27.9°C

The warmest month (with the highest average high temperature) is September (28.9°C).
The month with the lowest average high temperature is February (26.3°C).

  • Average low temperature in May: 26.6°C

The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (24.9°C).

Average pressure in May
Castle Bruce, Dominica

Average pressure in May - Castle Bruce, Dominica
  • Average pressure in May: 1015mbar

The month with the highest atmospheric pressure is June (1015.8mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).

Average wind speed in May
Castle Bruce, Dominica

Average wind speed in May - Castle Bruce, Dominica
  • Average wind speed in May: 24.1km/h

The windiest month (with the highest average wind speed) is January (26.6km/h).
The calmest month (with the lowest average wind speed) is October (19.9km/h).

Average humidity in May
Castle Bruce, Dominica

Average humidity in May - Castle Bruce, Dominica
  • Average humidity in May: 77%

The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).

Average rainfall in May
Castle Bruce, Dominica

Average rainfall in May - Castle Bruce, Dominica
  • Average rainfall in May: 61mm

The wettest month (with the highest rainfall) is August (99mm).
The driest month (with the least rainfall) is February (28mm).

Average rainfall days in May
Castle Bruce, Dominica

Average rainfall days in May - Castle Bruce, Dominica
  • Average rainfall days in May: 22.3 days

The month with the highest number of rainy days is October (23.1 days).
The month with the least rainy days is March (16.6 days).

Average sea temperature in May
Castle Bruce, Dominica

Average sea temperature in May - Castle Bruce, Dominica
  • Average sea temperature in May: 28.2°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

Average daylight in May /
Average sunshine in May
Castle Bruce, Dominica

Average daylight in May / Average sunshine in May - Castle Bruce, Dominica
  • Average daylight in May: 12h and 5min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in May: 9h and 4min

The months with the most sunshine are April, August and September (Average sunshine: 10h and 6min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

Average sunshine days in May
Castle Bruce, Dominica

Average sunshine days in May - Castle Bruce, Dominica
  • Average sunshine days in May: 3.8 days

The month with the most sunshine days is March (8.1 days).
The months with the least sunshine days are May, June and August (3.8 days).

Average UV index in May
Castle Bruce, Dominica

Average UV index in May - Castle Bruce, Dominica
  • Average UV index in May: 7

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

Average cloud cover in May
Castle Bruce, Dominica

Average cloud cover in May - Castle Bruce, Dominica
  • Average cloud cover in May: 45

The months with the most cloud cover are June and July (Cloud cover 47).
The month with the least cloud cover is February (Cloud cover 34).

Average visibility in May
Castle Bruce, Dominica

Average visibility in May - Castle Bruce, Dominica
  • 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).

Castle Bruce, Dominica

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