Trincomalee, Sri Lanka — Weather in August 2026

Climate Overview

Trincomalee, Sri Lanka in August has hot conditions, with highs reaching 33.1°C (92°F) and afternoons the warmest part of the day. Winds are noticeable. Sea temperature reaches 28.8°C (84°F).

This month falls at the end of Summer. Temperatures are at their seasonal peak.

Temperatures remain fairly steady throughout August, with daily highs around 33°C (91°F).

August sees fairly even rainfall, totalling about 49 mm across the month.

The warmest days tend to fall around the 2th, averaging 33.4°C (92°F).

Monthly August Averages

Temperature

33°C / 26°C

Feels Like

37°C / 28°C

Rain

8 days · 49 mm

Sunshine

10.4h / day

Humidity

70% — Muggy

Wind

26 km/h

Wind Direction

WSW (238°)

Gusts

42 km/h

Daylight

12.4 h

Cloud Cover

82%

Clear Sky Days

0.3

UV Index

8.3 — Very High

Sea Temperature

29°C

Dew Point

24°C — Muggy

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:58

Daylight 12.4h

Sunset 18:22

What to Expect

With midday temperatures reaching 33°C (92°F), schedule outdoor activities for early morning or late afternoon. Evenings remain warm enough for comfortable outdoor dining and night markets.

Rain usually comes in shorter passing showers rather than all-day rain.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

3days (15 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January best	27°C / 24°C	30°C / 27°C	15days (148 mm) Wet	9.7h Good	78% Humid	7 High	Good	View Details
February best	28°C / 25°C	32°C / 27°C	10days (68 mm) Wet	10.6h Excellent	77% Humid	8.4 Very High	Good	View Details
March	30°C / 25°C	35°C / 29°C	9days (43 mm) Wet	10.8h Excellent	77% Humid	9 Very High	Fair	View Details
April	32°C / 27°C	38°C / 31°C	10days (50 mm) Wet	11h Excellent	76% Humid	9 Very High	Poor	View Details
May	33°C / 27°C	38°C / 30°C	11days (85 mm) Wet	10.2h Excellent	75% Muggy	7.9 Very High	Poor	View Details
June	34°C / 27°C	37°C / 29°C	3days (15 mm) Excellent	10.7h Excellent	69% Muggy	7.8 Very High	Fair	View Details
July	34°C / 27°C	37°C / 29°C	7days (36 mm) Good	10.4h Excellent	68% Muggy	7.8 Very High	Fair	View Details
August	33°C / 26°C	37°C / 28°C	8days (49 mm) Wet	10.4h Excellent	70% Muggy	8.3 Very High	Poor	View Details
September	33°C / 26°C	36°C / 28°C	9days (46 mm) Wet	10.3h Excellent	70% Muggy	8.3 Very High	Poor	View Details
October	31°C / 25°C	36°C / 29°C	19days (208 mm) Wet	9.6h Good	78% Humid	7.8 Very High	Wet	View Details
November	28°C / 25°C	33°C / 28°C	24days (405 mm) Wet	8.4h Good	85% Humid	6.6 High	Wet	View Details
December	28°C / 24°C	31°C / 28°C	21days (241 mm) Wet	9.2h Good	83% Humid	7 High	Wet	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is August a good time to visit Trincomalee?

August is typically poor for visiting Trincomalee, with average highs of 33°C (92°F) and around 8 rainy days. Trincomalee, Sri Lanka in August has hot conditions, with highs reaching 33.1°C (92°F) and afternoons the warmest part o

Does it rain a lot in Trincomalee in August?

Trincomalee typically sees around 8 rainy days in August with 49 mm (1.9 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Trincomalee in August?

Nights stay pleasantly warm in Trincomalee during August, around 26°C (79°F). Light evening wear is sufficient.

What should I pack for Trincomalee in August?

With highs of 33°C (92°F) and lows of 26°C (79°F) in August, we recommend: Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Trincomalee?

August is not the most favourable month weather-wise in Trincomalee. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Trincomalee in August?

The average UV index in Trincomalee during August is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in Trincomalee in August?

Trincomalee gets approximately 12 hours of daylight per day in August, with around 10 hours of sunshine.

Does it snow in Trincomalee in August?

Snow is uncommon in Trincomalee during August based on 10-year climate averages.

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