This is a climate-model estimate, not a measurement: we have no measured water temperature for rivers, lakes and reservoirs yet. Real measurements are available for seas only.
Water temperature map of the Struma
Water temperature in the Struma by city today 📍
| City | Now | Swimming |
|---|---|---|
| Boboshevo | +21° | Comfortable for swimming |
| Kocherinovo | +21° | Comfortable for swimming |
| Blagoevgrad | +21° | Comfortable for swimming |
| Kresna | +21° | Comfortable for swimming |
| Simitli | +22° | Comfortable for swimming |
| Strumyani | +22° | Comfortable for swimming |
| Kyustendil | +22° | Comfortable for swimming |
| Sandanski | +22° | Comfortable for swimming |
| Neos Skopos | +21° | Comfortable for swimming |
| Irakliya | +21° | Comfortable for swimming |
| Strimoniko | +23° | Comfortable for swimming |
| Draviskos | +21° | Comfortable for swimming |
| Skutari | +22° | Comfortable for swimming |
| Zemen | +21° | Comfortable for swimming |
| Pernik | +21° | Comfortable for swimming |
| Radomir | +22° | Comfortable for swimming |
| Neo Petritsi | +22° | Comfortable for swimming |
| Akhinos | +22° | Comfortable for swimming |
| Tragilos | +22° | Comfortable for swimming |
| Mavrotalassa | +22° | Comfortable for swimming |
🎣 Fishing in cities on the Struma
Water temperature forecast in the Struma 📅
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature in the Struma this weekend
Water temperature in the Struma for a month
There is no exact monthly water forecast — it changes slowly. The reference is the climate normal: up to +23° in summer. The monthly normal is below.
Monthly water temperature in the Struma 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +10 | +9 | +10 | +15 | +18 | +19 | +21 | +23 | +20 | +15 | +14 | +12 |
Climate normal (model estimate).
Swimming conditions in the Struma by month
When to swim in the Struma 🏖️
Cities on the Struma 📍
FAQ about water in the Struma ❓
What is the water temperature in the Struma now?
Now +22° — Comfortable for swimming.
Can you swim in the Struma?
Comfortable season — from May to September.
When is water warmest in the Struma?
Warmest in August — up to +23°.
Where does the water temperature data come from?
A water temperature model (by latitude, longitude and day of year), by cities.
Water temperature archive in the Struma on this day
| City | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Boboshevo | +21° | +22° | +22° | +21° | +21° | +20° | +21° | +21° | +22° | +21° |
| Kocherinovo | +21° | +21° | +21° | +21° | +20° | +20° | +20° | +21° | +21° | +21° |
| Blagoevgrad | +21° | +21° | +21° | +21° | +20° | +20° | +21° | +21° | +22° | +21° |
| Kresna | +21° | +21° | +22° | +21° | +20° | +20° | +21° | +21° | +22° | +21° |
| Simitli | +22° | +22° | +23° | +22° | +21° | +21° | +22° | +22° | +23° | +22° |
Climate normal (model estimate for this date), not a measurement archive.
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Water temperature in the Struma — in detail
Water temperature in the Struma is tracked across 20 cities. The water is now about +22°. The page has a temperature map by city, a daily forecast and a monthly climate normal.