Trincomalee Weather in April

Thinking of visiting Trincomalee in April? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 27°C (81°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Trincomalee in April

Typically around 6 days of rainfall are expected, averaging 66 mm (2.6 in) for the month. Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in Trincomalee in April

Temperatures in Trincomalee in April top out at 32°C (90°F) and drop to 27°C (81°F) overnight. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Trincomalee in April

Expect a lot of sunshine this month, with about 267 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Trincomalee in April

Wind speeds average 2 m/s (4 knots) during April. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

Average water temperature in April

The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

If your ideal day consists of dry skies and pleasant temperatures, February typically offers the best circumstances for Trincomalee.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Trincomalee's climate page.

Trincomalee Temperature in April

Min Temperature 27°C (81°F)  

Max Temperature 32°C (90°F)  

Water Temperature 28°C (82°F)  

Chance of Rain 18%  

Precipitation 66 mm (2.6 in)  

Rainy days 6 days  

Humidity 69%  

Windspeed 2 m/s (4 knots)  

Sunshine 267 hours  

Percentage Sunshine  

Daily Historical Temperatures

42-year average (1976-2025)

Based on our historical records, temperatures in Trincomalee typically stay consistent throughout April, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in April

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Daily Historical Precipitation

42-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in April

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Trincomalee in April

Browse day-by-day weather records for Trincomalee spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Trincomalee historical weather extremes in April

According to our 21 years of weather records for Trincomalee, the following extremes were recorded between 2005 and 2026.

• The warmest day in April was on April 23, 2017, with a maximum of 38°C (100°F).
• Trincomalee experienced its chilliest April day on April 9, 2005, reaching only 26°C (79°F).
• The coldest night in April in Trincomalee was on April 14, 2015, with a minimum of 23°C (73°F).

What to Wear in Trincomalee in April

Warm temperatures in April make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Trincomalee in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

8/10

Walking

8/10

Camping

7/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Trincomalee's climate page.

More climate data for Trincomalee

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Trincomalee climate overview or explore weather in Sri Lanka.