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Trincomalee in May 2027: weather, temperatures and activities

Do you want to visit Trincomalee in May 2027? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether May is a good month to travel to Trincomalee, Sri Lanka.

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Is it worth visiting Trincomalee in May?

Check your ideal travel criteria and see if the month of May suits your plans to go to Trincomalee.
What matters most?
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Trincomalee in May 2027: weather, temperatures and activities

Page summary

Trincomalee in May in summary
Favourable weather
Min 28°C Max 34°C 160 mm 9 day(s) 72% 26% 31°C UV 7 12.4 h/day
Possible activities in May
Beach and swimmingCultural visits and heritageAnimal observationDiving and snorkelingWatersportsNature and landscapesGastronomyWell-beingBoat trip and cruise
Practical guidelines
Moderate crowds Low price 05:46 18:17
Hourly weather

Average weather in Trincomalee in May 2027

Favourable weather

The weather in Trincomalee in May 2027 is based on statistical data from previous years in May. This allows you to forecast the weather in May 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

From 1st to 31 May 2027
0h
Dominant weather
Clear/Sunny
19 days out of 31 (61%)
24.7°C
Other common conditions
Partly Cloudy
8 days out of 31 (25%)
Moderate rain at times
2 days out of 31 (6%)
Fog
2 days out of 31 (6%)
3h
Dominant weather
Clear/Sunny
18 days out of 31 (58%)
24.4°C
Other common conditions
Partly Cloudy
8 days out of 31 (25%)
Moderate rain at times
2 days out of 31 (6%)
Fog
2 days out of 31 (6%)
6h
Dominant weather
Clear/Sunny
20 days out of 31 (64%)
28.5°C
Other common conditions
Partly Cloudy
8 days out of 31 (25%)
Moderate rain at times
2 days out of 31 (6%)
Cloudy
1 days out of 31 (3%)
9h
Dominant weather
Clear/Sunny
16 days out of 31 (51%)
33.1°C
Other common conditions
Partly Cloudy
9 days out of 31 (29%)
Moderate rain at times
4 days out of 31 (12%)
Heavy rain
1 days out of 31 (3%)
12h
Dominant weather
Clear/Sunny
11 days out of 31 (35%)
33.3°C
Other common conditions
Moderate rain at times
8 days out of 31 (25%)
Partly Cloudy
6 days out of 31 (19%)
Heavy rain
5 days out of 31 (16%)
15h
Dominant weather
Clear/Sunny
10 days out of 31 (32%)
29.9°C
Other common conditions
Moderate rain at times
9 days out of 31 (29%)
Heavy rain
8 days out of 31 (25%)
Partly Cloudy
4 days out of 31 (12%)
18h
Dominant weather
Clear/Sunny
14 days out of 31 (45%)
26.4°C
Other common conditions
Moderate rain at times
8 days out of 31 (25%)
Partly Cloudy
6 days out of 31 (19%)
Heavy rain
2 days out of 31 (6%)
21h
Dominant weather
Clear/Sunny
16 days out of 31 (51%)
25.4°C
Other common conditions
Moderate rain at times
8 days out of 31 (25%)
Partly Cloudy
5 days out of 31 (16%)
Heavy rain
2 days out of 31 (6%)
Climate

Climate of Trincomalee in May

Temperatures, precipitation and monthly trends help to better understand the climate in Trincomalee in May.

Temperatures and rain in Trincomalee in May

Average daily weather

Temperatures and rain day by day in May.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of May is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Trincomalee in May

Seasonal normals

Seasonal normals of Trincomalee in May

Check the seasonal normals in Trincomalee in May and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
May
Weather data April May June
Outside temperature
Average temperature 31.3°C 31.1°C 30.8°C
Maximum temperature 34.8°C 33.8°C 33.3°C
Minimum temperature 27.8°C 28.4°C 28.3°C
Record maximum temperature 39.0°C
(2016)
 40.0°C
(2009)
 38.0°C
(2010)
Record low temperature 22.0°C
(2020)
 24.0°C
(2016)
 24.0°C
(2020)
Number of days at +30° 30 day(s)
(100%)
 30 day(s)
(97%)
 29 day(s)
(97%)
Number of days at +18° 30 day(s)
(100%)
 31 day(s)
(100%)
 30 day(s)
(100%)
Number of days below 0° 0 day(s)
(0%)
 0 day(s)
(0%)
 0 day(s)
(0%)
Sea temperature
Sea temperature (average) 29.7°C 30.2°C 30.0°C
Sea temperature (minimum) 28.7°C 29.1°C 28.8°C
Sea temperature (maximum) 31.0°C 31.0°C 30.9°C
Wind
Wind speed 11 km/h 21 km/h 30 km/h
Wind temperature 27.8°C 28.4°C 28.3°C
Precipitation (rain)
Precipitation 208.9 mm 159.6 mm 30.1 mm
Number of days with precipitation 25 day(s)
(83%)
 18 day(s)
(58%)
 9 day(s)
(30%)
Number of days with significant precipitation (greater than 5 mm) 13 day(s)
(43%)
 9 day(s)
(30%)
 1 day(s)
(5%)
Record precipitation in one day 42.6 mm
(2011)
 110.5 mm
(2016)
 32.0 mm
(2015)
Other weather data
Humidity 74% 72% 67%
Visibility 8.9 km 9.4 km 9.9 km
Cloud cover 27% 26% 28%
UV index 7 7 7
Daily sunshine 12h 12h 13h
Sunrise and sunset
Sunrise time 05h56 05h46 05h47
Sunset time 18h14 18h17 18h24
Day length 12h18 12h31 12h37
Our opinion on the climate in May
The review of Where And When fair weather favourable weather favourable weather
Activities and events

What to do in Trincomalee in May?

Possible activities in May
Beach and swimmingCultural visits and heritageAnimal observationDiving and snorkelingWatersportsNature and landscapesGastronomyWell-beingBoat trip and cruise
Observed weather

What was the weather like in Trincomalee in May last?

Find the observed weather calendar in Trincomalee in May 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Partly Cloudy
23°C32°C0.1 mm
2
Clear/Sunny
23°C32°C6.3 mm
3
Patchy rain nearby
24°C33°C2.8 mm
4
Clear/Sunny
24°C33°C0.0 mm
5
Clear/Sunny
24°C34°C10.4 mm
6
Partly Cloudy
24°C33°C7.3 mm
7
Partly Cloudy
24°C32°C0.4 mm
8
Partly Cloudy
23°C29°C0.0 mm
9
Partly Cloudy
25°C32°C1.0 mm
10
Partly Cloudy
24°C32°C0.0 mm
11
Clear/Sunny
24°C32°C0.0 mm
12
Partly Cloudy
25°C34°C0.0 mm
13
Partly Cloudy
26°C33°C0.0 mm
14
Partly Cloudy
26°C33°C0.4 mm
15
Partly Cloudy
26°C32°C0.0 mm
16
Clear/Sunny
26°C32°C0.0 mm
17
Patchy rain nearby
25°C30°C0.3 mm
18
Heavy rain at times
24°C29°C1.5 mm
19
Patchy rain nearby
25°C31°C0.8 mm
20
Partly Cloudy
25°C31°C0.3 mm
21
Patchy rain nearby
25°C31°C0.1 mm
22
Clear/Sunny
25°C34°C0.0 mm
23
Partly Cloudy
26°C33°C0.5 mm
24
Partly Cloudy
26°C31°C0.3 mm
25
Cloudy
26°C28°C0.0 mm
26
Partly Cloudy
26°C32°C0.0 mm
27
Patchy rain nearby
25°C31°C0.2 mm
28
Patchy rain nearby
26°C32°C0.2 mm
29
Clear/Sunny
25°C32°C0.0 mm
30
Patchy rain nearby
26°C31°C0.1 mm
31
Partly Cloudy
25°C32°C0.0 mm
Nearby

Where to go near Trincomalee in May?

Compare cities and destinations near Trincomalee in May to find another travel stop, a nearby alternative or a logical continuation of your stay in Trincomalee.

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Best times to visit Trincomalee All cities in Sri Lanka in May
Every month

Best time to visit Trincomalee month by month

Compare the weather in Trincomalee across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Trincomalee in May: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, it’s a good time. Conditions are favorable in Trincomalee in May, which places this month 4th out of 12.

Expect an average of 34°C during the day and 28°C at night, with about 160 mm of precipitation spread over 9 rainy days.

Yes: the sea is 30°C on average in May, a pleasant temperature for swimming.

Expect about 12.4 hours of sunshine per day on average for this month.

No activity stands out as ideal this month, but conditions remain acceptable for Beach and swimming, Cultural visits and heritage, Animal observation and Diving and snorkeling.

No: this month is in Moderate crowds, with a visitor index of 23/100. It is one of the quietest periods of the year.

No: rates are at level Low price, with a price index of 37/100. It’s one of the most budget-friendly months.

The most favorable months in Trincomalee are: January, February, March, May, June, July, August, September and December. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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