Where to Go for Great Weather
Sri Lanka · Trincomalee · September

Trincomalee in Septemberhow the month reads

September is a mixed month — worth planning against specific weeks inside Sri Lanka, with warmer than the yearly mean by 1.8°C. The safety bulletins below apply.

Rank
9 of 12
Score
60/100
September match
60/100

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What’s open · September

Things to do in Trincomalee in September

Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.

  • Temperature
    34°C
    +1.8°C vs. yearly mean
  • Month rank
    9 of 12
    for Trincomalee
  • Best months
    February · March · January
    highest regional score
12-month temperature · Trincomalee

September in context

Temperature°C
Temperature · 12-month climatologyTrincomalee, Sri Lanka — September. Average daytime high by month in °C. Lowest in January (28.3), highest in June (34.3). Monthly means: 28.3, 29.3, 31.2, 33.4, 33.6, 34.3, 34.2, 33.8, 33.5, 31.8, 29.5, 28.6.
View data table
MonthAverage daytime high (°C)
January28.3
February29.3
March31.2
April33.4
May33.6
June34.3
July34.2
August33.8
September33.5
October31.8
November29.5
December28.6
Safety · 4 governments

What the governments say about Sri Lanka

Combined advisory · most-cautious-wins
Exercise increased caution
Highest level across 4 governments · Advisory last changed
See breakdown by country
AU

Exercise increased caution

Changed Checked www.smartraveller.gov.au
DE

Exercise normal precautions

Changed Checked www.auswaertiges-amt.de
US

Exercise increased caution

Changed Checked travel.state.gov
← Earlier
August

34°C in Aug

Later →
October

32°C in Oct

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Plan a September trip to Trincomalee.

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