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When each season actually begins
When each season actually begins: one question with four honest answers: the astronomical season that starts at the solstice, the meteorological one that…
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
One question with four honest answers: the astronomical season that starts at the solstice, the meteorological one that starts on the first of the month, the climatological one computed from the local temperature series (spring arrives when five days in a row pass +5 C), and the phenological one that waits for the birches.
One page per season per country with the computed median start date and its spread, plus the traditional divisions people still use — the Sami eight seasons, the Estonian "kevadtalv", the East Asian solar terms. A focused example is "when spring starts in Estonia".
How to use it
Use When each season actually begins 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 algab kevad |
| Finnish | milloin kevät alkaa |
| Russian | когда начинается весна |
| English | when does spring officially start |
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: computed from the open daily temperature series of Riigi Ilmateenistus, FMI (CC BY 4.0) and LVGMC with the WMO five-day threshold; traditional divisions cited from published ethnography. · 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
/months is one page per calendar month; this is where the season boundaries fall and why four institutions give four dates.
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
/months.
Frequently asked questions
What does this guide cover?
One question with four honest answers: the astronomical season that starts at the solstice, the meteorological one that starts on the first of the month, the climatological one computed from the local temperature series (spring arrives when five days in a row pass +5 C), and the phenological one that waits for the birches. One page per season per country with the computed median start date and its spread, plus the traditional divisions people still use — the Sami eight seasons, the Estonian "kevadtalv", the East…
What evidence does it use?
computed from the open daily temperature series of Riigi Ilmateenistus, FMI (CC BY 4.0) and LVGMC with the WMO five-day threshold; traditional divisions cited from published ethnography.
Where does this guide stop?
/months is one page per calendar month; this is where the season boundaries fall and why four institutions give four dates.
Turn the reference into a routine
TempoLife brings food, movement, sleep and everyday health habits into one private place when you want to track what happens next.