July in Trincomalee averages a daily high of 35°C with nights around 25.9°C. Expect roughly 4.4 wet days totalling 46.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Trincomalee is January–March.
Based on CHINA BAY, CE (6.7km), 1995–2024. 13 years of July data.