
Lake · Italy
Lago di Fondi
Lagoon in Province of Latina, Lazio
- Area
- 3.3km²
- Max depth
- 22m
- Average depth
- 1.6m
- Elevation
- -1m a.s.l.
- Shoreline
- 19km
- Volume
- 0.005km³
Lago di Fondi is a lake in Italy. It covers 3.3 km². On average it is 1.6 m deep, and 22 m at its deepest point. Its surface lies 1 m below sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lago di Fondi?
The water is warmest in August, around 28 °C at the surface, and coldest in January, around 9 °C. The surface averages 20 °C or more from May to October: comfortable for most swimmers.
It does not normally freeze in winter.
On the shore, afternoons reach 31 °C on average in August and 11 °C in January. The driest month is August (23 mm of rain), the wettest November (120 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (98 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | 9 | 10 | 11 | 4 | 86 | 10 | 3.6 | 11 |
| February | 11 | 13 | 11 | 4 | 76 | 10 | 4.5 | 11 |
| March | 15 | 17 | 14 | 6 | 72 | 9 | 5.6 | 11 |
| April | 19 | 21 | 18 | 9 | 56 | 10 | 6.9 | 11 |
| May | 23 | 24 | 23 | 13 | 50 | 9 | 8.4 | 10 |
| June | 26 | 27 | 28 | 17 | 34 | 6 | 10.3 | 10 |
| July | 28 | 28 | 31 | 20 | 24 | 5 | 11.4 | 10 |
| August | 28 | 28 | 31 | 20 | 23 | 5 | 10.3 | 10 |
| September | 25 | 27 | 26 | 16 | 67 | 10 | 7.4 | 10 |
| October | 20 | 23 | 21 | 12 | 82 | 11 | 6.0 | 10 |
| November | 14 | 17 | 16 | 9 | 120 | 14 | 3.9 | 11 |
| December | 10 | 12 | 12 | 5 | 95 | 12 | 3.6 | 11 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 17 days before flowing out.
- Its catchment drains 239 km² of land.
- About 3.5 m³ of water flow out every second, on average.
- Its shoreline is 3.0 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lago di Fondi
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- —beaches and swimming spots
- 1campsites
Anxur Village
- 1boat hire and water-sport clubs
A.S.D. Canoa Club Raddotto
- —marinas and slipways
- —ferry piers
- —viewpoints
- 2hotels, B&Bs and chalets
Agriturismo Tenuta Mirabello, Foresteria Tenuta Sugarelle
- —fishing spots
- 7restaurants and cafés
Towns on the shore
- Monte San Biagio3,481 people
Nearest airport with scheduled flights: Ciampino–G. B. Pastine International Airport (CIA), 80 km in a straight line.
Car hire at CIA airport (Rome)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Photos
Seen by visitors



Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | 10.7 | 11.4 | 14.5 | 18.3 | 22.7 | 27.8 | 31.2 | 31.3 | 26.0 | 21.4 | 16.2 | 11.9 |
| 2020 | +1.3 | +2.8 | +0.2 | +0.6 | +1.1 | −1.7 | +0.5 | +1.5 | +1.7 | −1.7 | +1.0 | +0.5 |
| 2021 | −0.8 | +1.6 | −0.5 | −1.7 | −1.2 | +1.1 | +0.2 | +0.6 | +2.3 | −0.8 | +0.3 | +0.5 |
| 2022 | +0.3 | +2.0 | −0.1 | +0.2 | +3.2 | +5.0 | +3.7 | +1.1 | +0.5 | +2.4 | +1.3 | +2.9 |
| 2023 | +1.4 | +0.8 | +1.1 | −0.7 | −0.2 | −0.1 | +1.0 | +0.2 | +2.7 | +3.2 | +0.8 | +1.4 |
| 2024 | +1.9 | +2.8 | +1.1 | +1.7 | +0.5 | +1.2 | +3.1 | +2.8 | +0.4 | +1.2 | +1.4 | +1.1 |
| 2025 | +1.9 | +2.3 | +1.5 | +1.5 | +0.9 | +4.6 | +1.1 | +0.7 | +1.7 | +0.1 | +0.4 | +1.9 |
+1 warmer than usual −1 cooler than usual
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q3825952) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.