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Pärnu Weather in May
Pärnu in May sees moderate temperatures, with highs around 18°C (64°F) and overnight lows of 6°C (43°F). Around 50 mm (2 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.
Rainfall in Pärnu in May
Historically, the month has about 11 days of rain, averaging 50 mm (2 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Pärnu in May
May in Pärnu brings typical temperatures with highs around 18°C (64°F) and lows of 6°C (43°F). Conditions are often most pleasant around the middle of the day. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Pärnu in May
The month enjoys around 301 hours of sunshine, creating mostly sunny days with good weather conditions.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pärnu Temperature in May
Min Temperature
6°C (43°F)
Max Temperature
18°C (64°F)
Chance of Rain
38%
Precipitation
50 mm (2 in)
Rainy days
11 days
Humidity
68% *
Sunshine
301 hours *
Percentage Sunshine
40% *
Pärnu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pärnu - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Pärnu typically rise from around 13°C (55°F) at the start of May to approximately 18°C (64°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 9°C (48°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Pärnu in May
Browse day-by-day weather records for Pärnu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Pärnu historical weather extremes in May
Based on weather observations in Pärnu between 1976 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Pärnu reached 30°C (86°F) (May 24, 2014).
- The lowest daytime temperature in May was 3°C (37°F), recorded on May 11, 1978.
- Pärnu registered its coldest May night on May 6, 2023, with temperatures dropping to -5°C (23°F).
Best Places in Estonia in May
Find out more about the weather in Estonia and which places have the best travel conditions in this month. See all of Estonia in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Pärnu in May
For Pärnu in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Pärnu in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Pärnu 3-Day Forecast
More climate data for Pärnu
Temperature Rainfall Sunshine Humidity
See the full Pärnu climate overview or explore weather in Estonia.
Popular in May
Where to go in May - average daytime high across popular destinations.
Otepää
17°C (63°F) Tartu17°C (63°F) Pärnu
18°C (64°F) Narva16°C (61°F) Tallinn15°C (59°F) Kuressaare15°C (59°F) Narva-Jõesuu15°C (59°F) Haapsalu
12°C (54°F) Bucket list
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