5-day weather forecast Pärnu 18-08-2026
Weather forecast Pärnu today 18.08.2026: mist, temperature from 10 °C to 19 °C.
Precipitation probability 52%. Wind up to 2.5 m/s (gusts 6 m/s). Air humidity 55–96%, atmospheric pressure 751–753 mm Hg, UV index up to 3.1.
5 days at a glance — tap a day to open it
Sunrise 05:50
Sunset 21:01
Sunset 21:01
First Quarter37% illuminated
Moonrise 14:14 · Moonset 21:37
Moonrise 14:14 · Moonset 21:37
Chart
Table
Tue, Aug 18, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Mist | 11 °C | 33% | 79% | 94% | 753 mm Hg | WNW 285° 2 (3.81) m/s | 0 |
| 01:00 | Mist | 11 °C | 37% | 95% | 96% | 753 mm Hg | W 280° 1.81 (2.81) m/s | 0 |
| 02:00 | Mist | 11 °C | 29% | 61% | 96% | 753 mm Hg | W 268° 1.81 (2.72) m/s | 0 |
| 03:00 | Mist | 11 °C | 29% | 59% | 96% | 753 mm Hg | W 277° 1.61 (1.81) m/s | 0 |
| 04:00 | Mist | 11 °C | 32% | 74% | 96% | 753 mm Hg | W 267° 1.81 (2.64) m/s | 0 |
| 05:00 | Mist | 10 °C | 20% | 6% | 95% | 753 mm Hg | WNW 290° 1.5 (1.72) m/s | 0 |
| 06:00 |  Mist | 10 °C | 20% | 5% | 95% | 753 mm Hg | W 273° 1.39 (1.53) m/s | 0 |
| 07:00 |  Partly cloudy | 11 °C | 16% | 25% | 90% | 753 mm Hg | WSW 256° 1.31 (1.53) m/s | 0.1 |
| 08:00 |  Cloudy | 13 °C | 16% | 65% | 80% | 752 mm Hg | WNW 282° 1.11 (1.89) m/s | 0.4 |
| 09:00 |  Overcast | 15 °C | 18% | 100% | 70% | 752 mm Hg | W 280° 1.31 (2.42) m/s | 0.9 |
| 10:00 | Overcast | 17 °C | 16% | 100% | 64% | 752 mm Hg | W 277° 1.39 (2.33) m/s | 1.5 |
| 11:00 | Overcast | 18 °C | 14% | 100% | 58% | 752 mm Hg | W 274° 1.31 (2.22) m/s | 2 |
| 12:00 |  Patchy rain possible | 19 °C | 21% (0.11 mm/hr) | 100% | 56% | 752 mm Hg | WSW 251° 1.19 (1.92) m/s | 2.8 |
| 13:00 |  Light rain | 19 °C | 48% (0.79 mm/hr) | 100% | 55% | 752 mm Hg | SW 230° 1.61 (2.03) m/s | 3.1 |
| 14:00 | Patchy rain possible | 18 °C | 24% (0.14 mm/hr) | 100% | 61% | 752 mm Hg | SW 232° 1.61 (2.11) m/s | 3.1 |
| 15:00 |  Light rain shower | 18 °C | 47% (0.57 mm/hr) | 100% | 67% | 752 mm Hg | WSW 237° 0.81 (1.92) m/s | 2.8 |
| 16:00 | Light rain shower | 18 °C | 49% (0.6 mm/hr) | 100% | 69% | 752 mm Hg | NNW 328° 0.69 (2.22) m/s | 2.1 |
| 17:00 | Light rain shower | 18 °C | 42% (0.37 mm/hr) | 100% | 71% | 752 mm Hg | NNW 347° 1.69 (3.22) m/s | 1.4 |
| 18:00 | Light rain shower | 17 °C | 52% (0.46 mm/hr) | 100% | 79% | 751 mm Hg | N 2° 1.61 (3.81) m/s | 0.7 |
| 19:00 | Light rain shower | 16 °C | 43% (0.28 mm/hr) | 100% | 81% | 751 mm Hg | N 10° 1.69 (3.11) m/s | 0.3 |
| 20:00 | Light rain shower | 15 °C | 49% (0.35 mm/hr) | 100% | 83% | 751 mm Hg | N 10° 2 (3.11) m/s | 0.1 |
| 21:00 |  Cloudy | 13 °C | 25% | 86% | 88% | 751 mm Hg | N 354° 2.31 (3.42) m/s | 0 |
| 22:00 |  Partly cloudy | 12 °C | 17% | 36% | 90% | 751 mm Hg | NNW 344° 2.5 (6) m/s | 0 |
| 23:00 | Partly cloudy | 11 °C | 17% | 35% | 90% | 751 mm Hg | NNW 343° 2.5 (4.92) m/s | 0 |
Tue, Aug 18, 2026
Frequently asked questions about the 5-day weather in Pärnu
What will the weather be like in Pärnu over the next 5 days?
Over the next 5 days in Pärnu the temperature is expected to range from about 9 to 21 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Pärnu?
The chance of rain in Pärnu over the next 5 days reaches 75%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Pärnu?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Pärnu will be the warmest and which the coolest?
Over the next 5 days the temperature in Pärnu ranges from about 9 to 21 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Pärnu over the next 5 days?
Over the next 5 days the wind in Pärnu picks up to 7 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Pärnu is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 75%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Pärnu?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Pärnu on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.