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When the water is warm enough to swim
When the water is warm enough to swim: this guide has a section for each beach, lake and river: the median week the water passes 15, 18 and 20 C, the week…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
This guide has a section for each beach, lake and river: the median week the water passes 15, 18 and 20 C, the week it usually peaks, when it drops back below each threshold, and the whole season drawn from twenty years of measurements — the answer to "can we swim at midsummer" that no live thermometer can give in April. The cold-shock rules for the first swim of the year and the winter-swimming season sit at the two ends. A focused example is "when the sea is swimmable at Pärnu".
How to use it
Use When the water is warm enough to swim to compare stable place facts and official facilities. Live opening, access and disruption information should always be confirmed with the operator before travel.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | millal saab merre ujuma |
| Finnish | milloin vesi on uimakelpoista |
| Russian | когда прогревается море в Эстонии |
| English | sea temperature Pärnu in June |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: water-temperature series from Riigi Ilmateenistus and SYKE open data (CC BY 4.0); cold-water immersion guidance from the national rescue boards (public). · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
/beaches is the place page with today's temperature and water quality; this is the season, the median dates and the spread.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Why it belongs on TempoLife
/beaches.
Frequently asked questions
What does this guide cover?
This guide has a section for each beach, lake and river: the median week the water passes 15, 18 and 20 C, the week it usually peaks, when it drops back below each threshold, and the whole season drawn from twenty years of measurements — the answer to "can we swim at midsummer" that no live thermometer can give in April. The cold-shock rules for the first swim of the year and the winter-swimming season sit at the two ends. A focused example is "when the sea is swimmable at Pärnu".
What evidence does it use?
water-temperature series from Riigi Ilmateenistus and SYKE open data (CC BY 4.0); cold-water immersion guidance from the national rescue boards (public).
Where does this guide stop?
/beaches is the place page with today's temperature and water quality; this is the season, the median dates and the spread.
Turn the reference into a routine
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