Trincomalee
Sri Lanka
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Trincomalee, Sri Lanka

May, the last month of the spring, in Trincomalee, is another hot month, with average temperature fluctuating between 26.4°C (79.5°F) and 34.5°C (94.1°F).

Temperature

In Trincomalee, the average high-temperature is relatively the same as in April - a still tropical 34.5°C (94.1°F). In Trincomalee, the average low-temperature is 26.4°C (79.5°F).

Rainfall

In Trincomalee, it is raining for 4 days, with typically 52mm (2") of accumulated precipitation. Throughout the year, in Trincomalee, Sri Lanka, there are 87 rainfall days, and 1569mm (61.8") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater in Trincomalee is May, with an average sea temperature of 30.2°C (86.4°F). For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In May, the average length of the day in Trincomalee is 12.5h.

Sunshine

In Trincomalee, the average sunshine is 7h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 12 interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Trincomalee?

In Trincomalee, in May, the average high-temperature is 34.5°C (94.1°F), and the average low-temperature is 26.4°C (79.5°F).

How many days does it rain in May in Trincomalee?

In May, the rain falls for 4 days. Throughout May, 52mm (2") of precipitation is accumulated.

What is the month with the warmest sea water in Trincomalee?

May is the month with the warmest seawater in Trincomalee, with an average sea temperature of 30.2°C (86.4°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

What is the sea temperature in May in Trincomalee?

In Trincomalee, the average seawater temperature in May is 30.2°C (86.4°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

How many hours of daylight does Trincomalee have in May?

The average length of the day in May in Trincomalee is 12.5h.

How many hours of sunshine does Trincomalee have in May?

In May, the average sunshine in Trincomalee is 7h.

What is the month with the highest UV index in Trincomalee?

Months with the highest UV index are February through October, with an average maximum UV index of 12.

How high is the UV index in May in Trincomalee?

In May, the average daily maximum UV index in Trincomalee, Sri Lanka, is 12. A UV Index value of 11, and more, symbolizes an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in May - Trincomalee, Sri Lanka
  • Average high temperature in May: 34.5°C

The warmest month (with the highest average high temperature) is June (34.7°C).
The month with the lowest average high temperature is January (27.9°C).

  • Average low temperature in May: 26.4°C

Months with the highest average low temperature are May and June (26.4°C).
Coldest months (with the lowest average low temperature) are November and December (24.2°C).

Average rainfall in May - Trincomalee, Sri Lanka
  • Average rainfall in May: 52mm

The wettest month (with the highest rainfall) is December (341mm).
The driest month (with the lowest rainfall) is June (26mm).

Average rainfall days in May - Trincomalee, Sri Lanka
  • Average rainfall days in May: 4 days

Months with the highest number of rainy days are November and December (16 days).
The month with the lowest number of rainy days is June (2 days).

Average sea temperature in May - Trincomalee, Sri Lanka
  • Average sea temperature in May: 30.2°C

The best month for swimming (with the highest average sea temperature) is May (30.2°C).
The coldest month (with the lowest average sea temperature) is January (27.1°C).

Average daylight in May / Average sunshine in May - Trincomalee, Sri Lanka
  • Average daylight in May: 12.5h

Months with the longest days are June and July (Average daylight: 12.6h).
The month with shortest days is December (Average daylight: 11.6h).

  • Average sunshine in May: 7h

The month with most sunshine is March (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 6).

Average UV index in May - Trincomalee, Sri Lanka
  • 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 10).