Port of Spain
Trinidad and Tobago
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Port of Spain, Trinidad and Tobago

The ancient building hosting the public library of the Port of Spain in Trinidad and Tobago, with palm trees outside
The ancient building hosting the public library of the Port of Spain in Trinidad and Tobago, with palm trees outside
The last month of the spring, May, is another hot month in Port of Spain, Trinidad and Tobago, with temperature in the range of an average high of 33.1°C (91.6°F) and an average low of 23°C (73.4°F).

Temperature

May is the warmest month, with an average high-temperature of 33.1°C (91.6°F) and an average low-temperature of 23°C (73.4°F).

Humidity

In May, the average relative humidity in Port of Spain, Trinidad and Tobago, is 79%.

Rainfall

In May, in Port of Spain, the rain falls for 11 days. Throughout May, 67.5mm (2.7") of precipitation is accumulated. In Port of Spain, during the entire year, the rain falls for 166 days and collects up to 1408mm (55.4") of precipitation.

Sea temperature

In Port of Spain, the average seawater temperature is 27°C (80.6°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in May is 12.6h.

Sunshine

In May, the average sunshine in Port of Spain is 7.5h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
In May, the average maximum UV index of 12 translate into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in Port of Spain?

The warmest month in Port of Spain is May, with an average high-temperature of 33.1°C (91.6°F) and an average low-temperature of 23°C (73.4°F).

What is the temperature in May in Port of Spain?

The average high-temperature, in May, in Port of Spain, Trinidad and Tobago, is 33.1°C (91.6°F), while the average low-temperature is 23°C (73.4°F).

What is the average humidity in May in Port of Spain?

In Port of Spain, Trinidad and Tobago, the average relative humidity in May is 79%.

How many days does it rain in May in Port of Spain?

In Port of Spain, in May, during 11 rainfall days, 67.5mm (2.7") of precipitation is typically accumulated.

What is the sea water temperature in May in Port of Spain?

In Port of Spain, Trinidad and Tobago, the average seawater temperature in May is 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in May in Port of Spain?

In May, the average length of the day in Port of Spain is 12.6h.

How long on average sun shines in May in Port of Spain?

The average sunshine in May is 7.5h.

What are the months with the highest UV index in Port of Spain?

February through October, with an average maximum UV index of 12, are months with the highest UV index in Port of Spain, Trinidad and Tobago.

How high is the UV index in May in Port of Spain?

In Port of Spain, Trinidad and Tobago, the average daily maximum UV index in May is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in May - Port of Spain, Trinidad and Tobago
  • Average high temperature in May: 33.1°C

The warmest month (with the highest average high temperature) is May (33.1°C).
The month with the lowest average high temperature is January (28°C).

  • Average low temperature in May: 23°C

The month with the highest average low temperature is June (23.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

Average humidity in May - Port of Spain, Trinidad and Tobago
  • Average humidity in May: 79%

The month with the highest relative humidity is November (86%).
Months with the lowest relative humidity are March and April (77%).

Average rainfall in May - Port of Spain, Trinidad and Tobago
  • Average rainfall in May: 67.5mm

The wettest month (with the highest rainfall) is August (244mm).
The driest month (with the lowest rainfall) is March (16.9mm).

Average rainfall days in May - Port of Spain, Trinidad and Tobago
  • Average rainfall days in May: 11 days

The month with the highest number of rainy days is July (21 days).
Months with the lowest number of rainy days are March and April (6 days).

Average sea temperature in May - Port of Spain, Trinidad and Tobago
  • Average sea temperature in May: 27°C

The best month for swimming (with the highest average sea temperature) is September (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in May / Average sunshine in May - Port of Spain, Trinidad and Tobago
  • Average daylight in May: 12.6h

Months with the longest days are June and July (Average daylight: 12.7h).
The month with shortest days is December (Average daylight: 11.5h).

  • Average sunshine in May: 7.5h

The month with most sunshine is February (Average sunshine: 8.3h).
The month with least sunshine is June (Average sunshine: 6.1h).

Average UV index in May - Port of Spain, Trinidad and Tobago
  • Average UV index in May: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 9).