
Reservoir · Singapore
Upper Peirce Reservoir
Body of water in Singapore
- Area
- 2.3km²
- Average depth
- 13m
- Elevation
- 42m a.s.l.
- Shoreline
- 14km
- Volume
- 0.030km³
Upper Peirce Reservoir is a reservoir in Singapore. It covers 2.3 km². On average it is 13 m deep. Its surface lies 42 m above sea level.
Plan your visit
Stay, sail and get there
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The water
Water temperature
There is no reliable satellite record of the water temperature for this lake yet.
On the shore, afternoons reach 30 °C on average in April and 28 °C in January. The driest month is February (102 mm of rain), the wettest December (300 mm).
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.
Climate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | — | — | 28 | 24 | 235 | 18 | 4.9 | 13 |
| February | — | — | 29 | 24 | 102 | 13 | 6.0 | 13 |
| March | — | — | 30 | 24 | 168 | 20 | 5.8 | 10 |
| April | — | — | 30 | 26 | 193 | 24 | 5.7 | 8 |
| May | — | — | 30 | 26 | 199 | 25 | 5.4 | 8 |
| June | — | — | 29 | 26 | 164 | 21 | 5.3 | 10 |
| July | — | — | 29 | 25 | 174 | 21 | 5.1 | 10 |
| August | — | — | 29 | 25 | 173 | 22 | 4.9 | 11 |
| September | — | — | 29 | 25 | 167 | 20 | 4.4 | 10 |
| October | — | — | 29 | 25 | 210 | 24 | 4.5 | 8 |
| November | — | — | 29 | 25 | 283 | 27 | 4.4 | 8 |
| December | — | — | 28 | 24 | 300 | 26 | 4.2 | 12 |
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 3.0 years before flowing out.
- Its catchment drains 8 km² of land.
- About 0.3 m³ of water flow out every second, on average.
- Its shoreline is 2.6 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Upper Peirce Reservoir
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- —beaches and swimming spots
- —campsites
- —boat hire and water-sport clubs
- —marinas and slipways
- —ferry piers
- 13viewpoints
Jelutong Tower, HSBC TreeTop Walk, Observation Tower and 10 more
- —hotels, B&Bs and chalets
- —fishing spots
- 3restaurants and cafés
Towns on the shore
- Bukit Batok New Town158,030 people
- Bukit Panjang New Town138,050 people
- Jelebu29,960 people
- Fajar26,420 people
- Saujana25,000 people
- Anak Bukit22,960 people
- Bangkit21,010 people
- Dairy Farm7,860 people
Nearest airport with scheduled flights: Seletar Airport (XSP), 8 km in a straight line.
Car hire at SIN airport (Singapore)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 | 28.1 | 28.8 | 29.6 | 30.2 | 30.1 | 29.4 | 29.0 | 29.1 | 29.2 | 29.4 | 28.9 | 28.2 |
| 2020 | +1.2 | +0.8 | +1.0 | +0.6 | +0.5 | −0.1 | −0.1 | ±0.0 | −0.4 | −0.3 | −0.1 | +0.1 |
| 2021 | −0.6 | −0.2 | −0.4 | −0.2 | ±0.0 | −0.1 | −0.2 | −0.6 | ±0.0 | +0.1 | +0.4 | +0.3 |
| 2022 | +0.5 | −0.6 | +0.1 | −0.2 | −0.2 | −0.2 | +0.4 | ±0.0 | −0.4 | −0.5 | −0.2 | −0.2 |
| 2023 | −0.2 | −0.8 | −0.8 | +0.2 | +0.6 | +0.7 | +0.6 | +0.6 | +0.6 | +1.3 | +1.1 | +0.7 |
| 2024 | +0.2 | +0.9 | +0.6 | +1.1 | +0.7 | +0.9 | +0.8 | +0.4 | +0.6 | +0.5 | +0.6 | +0.6 |
| 2025 | −0.4 | ±0.0 | −0.5 | −0.3 | +0.4 | +0.5 | +0.6 | +0.3 | −0.2 | +0.2 | +0.3 | +0.2 |
+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 (Q7337882) · 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.