Trincomalee, Sri Lanka — Weather in July 2026

Monthly climate averages for Trincomalee, Sri Lanka. Based on 10-year ERA5 reanalysis data.

Am Tropical Monsoon
4.7 /10
Fair

July is a fair month in Trincomalee

Climate Overview

Trincomalee, Sri Lanka in July has hot conditions, with highs reaching 33.5°C (92°F) and afternoons the warmest part of the day. Winds are noticeable. Sea temperature reaches 28.9°C (84°F).

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

Temperatures remain fairly steady throughout July, with daily highs around 34°C (93°F).

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

The warmest days tend to fall around the 1th, averaging 34°C (93°F).

Compared to June, this month is about 0°C cooler with 4 more rainy days.

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Monthly July Averages

Temperature
34°C / 27°C
Feels Like
37°C / 29°C
Rain
7 days · 36 mm
Sunshine
10.4h / day
Humidity
68% — Muggy
Wind
26 km/h
Wind Direction
WSW (240°)
Gusts
42 km/h
Daylight
12.6 h
Cloud Cover
82%
Clear Sky Days
0
UV Index
7.8 — Very High
Sea Temperature
29°C
Dew Point
24°C — Muggy
Moon Phase
New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

40°C 37°C 34°C 31°C 28°C 25°C 22°C 151015202531
High Low

Daily Precipitation

0 mm 1 mm 2 mm 3 mm 4 mm 151015202531
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202531
Sunshine

Daily Wind Speed

0 7 14 21 28 35 151015202531
Wind Speed
Sun Position
Sunrise 05:54
Daylight 12.6h
Sunset 18:28

What to Expect

With midday temperatures reaching 34°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.

Recent yearly records for July have stayed close to the long-run average.

Compare Months

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

July is typically fair for visiting Trincomalee, with average highs of 34°C (92°F) and around 7 rainy days. Trincomalee, Sri Lanka in July has hot conditions, with highs reaching 33.5°C (92°F) and afternoons the warmest part of
Trincomalee typically sees around 7 rainy days in July with 36 mm (1.4 in) of total rainfall. An umbrella should suffice.
Nights stay pleasantly warm in Trincomalee during July, around 27°C (80°F). Light evening wear is sufficient.
With highs of 34°C (92°F) and lows of 27°C (80°F) in July, we recommend: Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. Comfortable walking shoes are essential.
July is not the most favourable month weather-wise in Trincomalee. Consider visiting during months with milder temperatures or less rainfall for a better experience.
The average UV index in Trincomalee during July is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.
Trincomalee gets approximately 13 hours of daylight per day in July, with around 10 hours of sunshine.
Snow is uncommon in Trincomalee during July based on 10-year climate averages.

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