Best time to visit Pärnu
The best time to visit Pärnu is May–June, judged on twenty years of weather records and the events worth going for.
Pärnu, Paernumaa, Estonia
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | -1.4 °C / 29 °F | -5.8 °C / 22 °F | 54 mm / 2.1 in | neither best nor good |
| February | -1 °C / 30 °F | -6 °C / 21 °F | 42 mm / 1.7 in | neither best nor good |
| March | 3.8 °C / 39 °F | -3.3 °C / 26 °F | 38 mm / 1.5 in | neither best nor good |
| April | 10.3 °C / 51 °F | 1.1 °C / 34 °F | 41 mm / 1.6 in | good month |
| May | 16.6 °C / 62 °F | 5.9 °C / 43 °F | 50 mm / 2 in | best month |
| June | 20.4 °C / 69 °F | 10.6 °C / 51 °F | 75 mm / 3 in | best month |
| July | 22.6 °C / 73 °F | 13.5 °C / 56 °F | 90 mm / 3.6 in | good month |
| August | 21.3 °C / 70 °F | 12.4 °C / 54 °F | 97 mm / 3.8 in | good month |
| September | 16.7 °C / 62 °F | 9 °C / 48 °F | 61 mm / 2.4 in | good month |
| October | 10 °C / 50 °F | 4.2 °C / 40 °F | 64 mm / 2.5 in | neither best nor good |
| November | 4.8 °C / 41 °F | 1.1 °C / 34 °F | 55 mm / 2.1 in | neither best nor good |
| December | 1.4 °C / 35 °F | -2.2 °C / 28 °F | 54 mm / 2.1 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: good
- MMay: best
- JJune: best
- JJuly: good
- AAugust: good
- SSeptember: good
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Best
- May–June
- Good
- April, July–September
Pärnu is best for exploring outdoors in May and June, mild, sunny and dry; April, July, August and September are still good despite some chill or rain, while October through March turn cold, dark, humid and wet and are poor for a walking holiday.
Why these months
April · good
In its favour: precipitation 41 mm / 1.6 in, share of daylight that is sunny 71%, days with heavy rain 0.3 days, wet days 9.7 days, relative humidity 71%.
Against: feels like (high) 6.5 °C / 44 °F, average daily high 10.3 °C / 51 °F, average daily low 1.1 °C / 34 °F.
May · best
In its favour: precipitation 50 mm / 2 in, share of daylight that is sunny 77%, feels like (high) 14 °C / 57 °F, average daily high 16.6 °C / 62 °F, days with heavy rain 1.4 days, wet days 9.3 days, relative humidity 67%, average daily low 5.9 °C / 43 °F.
June · best
In its favour: feels like (high) 19.1 °C / 66 °F, average daily high 20.4 °C / 69 °F, share of daylight that is sunny 76%, precipitation 75 mm / 3 in, days with heavy rain 2.5 days, average daily low 10.6 °C / 51 °F, relative humidity 71%.
Against: wet days 11.9 days, share of rain falling in the daytime 50%.
Also on: Hanseatic and Handicraft days, Jaanipäev (St John's Day / Midsummer).
July · good
In its favour: feels like (high) 22.3 °C / 72 °F, average daily high 22.6 °C / 73 °F, share of daylight that is sunny 78%, precipitation 90 mm / 3.6 in, days with heavy rain 2.5 days, average daily low 13.5 °C / 56 °F, relative humidity 76%.
Against: wet days 14.1 days, share of rain falling in the daytime 52%.
Also on: Hanseatic and Handicraft days.
August · good
In its favour: feels like (high) 20.8 °C / 69 °F, average daily high 21.3 °C / 70 °F, share of daylight that is sunny 74%, precipitation 97 mm / 3.8 in, days with heavy rain 2.9 days, average daily low 12.4 °C / 54 °F.
Against: wet days 14.2 days, relative humidity 80%, share of rain falling in the daytime 50%.
Also on: Hanseatic and Handicraft days.
September · good
In its favour: feels like (high) 14.9 °C / 59 °F, share of daylight that is sunny 66%, precipitation 61 mm / 2.4 in, average daily high 16.7 °C / 62 °F, days with heavy rain 1.5 days, average daily low 9 °C / 48 °F.
Against: relative humidity 84%, wet days 10.7 days, share of rain falling in the daytime 47%.
Beach and swimming
Hot, dry and sunny. Penalises the monsoon hard.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: neither
- OOctober: neither
- NNovember: neither
- DDecember: neither
- Good
- June–August
Pärnu's beach season is short and mild rather than hot: June through August are good, with warm sunny air even though the Baltic sea stays cool and afternoon showers are common; the rest of the year the air and sea are too cold for the beach.
Why these months
June · good
In its favour: share of daylight that is sunny 76%, precipitation 75 mm / 3 in, days with heavy rain 2.5 days, wind (daily max) 18 km/h / 11 mph.
Against: wet days 11.9 days, sea temperature 18.7 °C / 66 °F, share of rain falling in the daytime 50%, average daily high 20.4 °C / 69 °F, feels like (high) 19.1 °C / 66 °F, average daily low 10.6 °C / 51 °F.
Also on: Hanseatic and Handicraft days, Jaanipäev (St John's Day / Midsummer).
July · good
In its favour: share of daylight that is sunny 78%, precipitation 90 mm / 3.6 in, days with heavy rain 2.5 days, wind (daily max) 17 km/h / 10 mph.
Against: wet days 14.1 days, sea temperature 20.9 °C / 70 °F, share of rain falling in the daytime 52%, average daily high 22.6 °C / 73 °F, feels like (high) 22.3 °C / 72 °F, average daily low 13.5 °C / 56 °F.
Also on: Hanseatic and Handicraft days.
August · good
In its favour: share of daylight that is sunny 74%, days with heavy rain 2.9 days, wind (daily max) 17 km/h / 10 mph.
Against: wet days 14.2 days, sea temperature 20.7 °C / 69 °F, share of rain falling in the daytime 50%, average daily high 21.3 °C / 70 °F, feels like (high) 20.8 °C / 69 °F, precipitation 97 mm / 3.8 in, average daily low 12.4 °C / 54 °F.
Also on: Hanseatic and Handicraft days.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Kläppen, 686 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | -5.9 °C | -5.4 °C | -0.6 °C | 6.5 °C | 14 °C | 19.1 °C | 22.3 °C | 20.8 °C | 14.9 °C | 7 °C | 1.2 °C | -2.9 °C |
| Days with heavy rain | 0.8 days | 0.7 days | 0.3 days | 0.3 days | 1.4 days | 2.5 days | 2.5 days | 2.9 days | 1.5 days | 1.4 days | 0.9 days | 0.7 days |
| Time rain usually falls | 7 am | 10 am | 5 pm | 5 pm | 4 pm | 2 pm | 5 pm | 1 pm | 3 pm | 2 pm | 5 am | 3 am |
| Sunshine per day | 2 h | 3.7 h | 7.2 h | 10.3 h | 13 h | 13.8 h | 13.7 h | 11.4 h | 8.5 h | 5.1 h | 2.2 h | 1.4 h |
| Relative humidity | 89% | 87% | 80% | 71% | 67% | 71% | 76% | 80% | 84% | 87% | 91% | 91% |
Sea temperature
Averaged over a shorter period (2022–2025) than the twenty-year averages above.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature 2022–2025 | -0.2 °C | -0.2 °C | 0.8 °C | 5.3 °C | 12.3 °C | 18.7 °C | 20.9 °C | 20.7 °C | 18.2 °C | 10.6 °C | 5 °C | 1.1 °C |
| Sea temperature (daily max) 2022–2025 | -0.2 °C | -0.2 °C | 0.9 °C | 5.6 °C | 12.7 °C | 19 °C | 21.2 °C | 20.9 °C | 18.4 °C | 10.7 °C | 5.1 °C | 1.2 °C |
- Very cold 10 °C or less
- Cold 10 to 15 °C
- Cool 15 to 20 °C
- Comfortable 20 to 25 °C
- Warm 25 to 28 °C
- Very warm over 28 °C
The words describe how the water feels to swim in. They are ours, not an official standard.
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 4.1 µg/m³ | 6.4 µg/m³ | 7.1 µg/m³ | 8 µg/m³ | 7.1 µg/m³ | 8.9 µg/m³ | 7.2 µg/m³ | 6.7 µg/m³ | 6.1 µg/m³ | 4.5 µg/m³ | 3.9 µg/m³ | 4.2 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 6.8 µg/m³ | 10.5 µg/m³ | 11.5 µg/m³ | 12.8 µg/m³ | 11.3 µg/m³ | 14.4 µg/m³ | 11.5 µg/m³ | 10.2 µg/m³ | 9.1 µg/m³ | 7.3 µg/m³ | 6.3 µg/m³ | 7 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.
Events and seasons
What the weather records cannot show. A major event can lift a month to good or best. The warnings are there to help you plan, and never count against a month.
Reasons to go
- Hanseatic and Handicraft days
June, July and August
- Jaanipäev (St John's Day / Midsummer)
23–24 June