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.
Bite in Rockville today — excellent 🎣
Pressure is steady, water +24° — most active: crucian carp and perch. Forecast by fish species and for the week ahead.
Bite forecast →
Water temperature in Rockville for a month
There is no exact monthly water forecast — the reference is the climate normal: in summer the water warms to about +30°. The monthly normal is below.
Monthly water temperature in Rockville 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +12 | +14 | +17 | +19 | +24 | +30 | +29 | +27 | +27 | +25 | +18 | +14 |
Climate normal (model estimate).
Water temperature archive in Rockville on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +27° | +27° | +26° | +24° | +23° | +25° | +27° | +27° | +26° | +24° |
Climate normal (model estimate for this date), not a measurement archive.
When to swim in Rockville 🏖️
Where else to swim nearby 🏝️
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FAQ about water in Rockville ❓
What is the water temperature in Rockville now?
Now +24° — Warm water.
When to swim in Rockville?
Comfortable season — from April to November.
When is the water in Rockville warmest?
Warmest in June — up to +30°.
Water temperature in Rockville — in detail
A summary page of water temperature across all bodies of water in Rockville. Now about +24°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.