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Pärnu in September
The weather in September
In September, Pärnu averages daytime highs of 17° and night-time lows of 8° — cool weather by day. Expect around 67 mm of precipitation spread over about 12 wet days, with average cloud cover near 41%.
Days are 5.3° cooler than in August on average, and October is cooler again by about 6.7°. The sea averages 15°, too cold for most swimmers.
September scores 61/100 — fair conditions for sightseeing — and ranks 5th of the twelve months for Pärnu. For the most comfortable weather, consider May, June and July instead.
Around the middle of the month the sun rises at 06:51 and sets at 19:45 local time, giving 12 h 53 min of daylight. Days shorten by 147 minutes over the month.
Why 61/100?
How the score for September is builtBeach score this month: 16/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Estonia's best in September
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Pärnu in September: quick answers
Is September a good time to visit Pärnu?
September scores 61/100 for Pärnu, which we rate as fair. Average highs are 17°C with 12 wet days.
How warm is Pärnu in September?
Daytime highs average 17°C and night-time lows 8°C in September.
Does it rain a lot in Pärnu in September?
Pärnu receives about 67 mm of precipitation in September, falling on around 12 days.
Can you swim in Pärnu in September?
The sea averages 15°C in September, cold for most swimmers.