Marina Bay, Singapore – Marina Bay Sands hotel, the Supertrees of Gardens by the Bay and the Singapore Flyer at dusk
Singapore · Singapore Strait

Marina Bay Sea Temperature Today

Sea
/
Air
–
UV
–
Bathtub
Above ⁦28°C⁩

The sea temperature at Singapore (Marina Bay) today is 29.7 °C / 85 °F – water as warm as a bath. The usual October average is 29.7 °C / 85 °F. Over the last 30 days the sea temperature has held at around 29.7 °C. Swimmable all year – the sea averages 27 °C or more in every month. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.

Last updated ·

Beachfront hotels in this photo: Marina Bay Sands.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in May (30.4°C). Coldest in January (27.9°C). Swimmable all year – the sea averages 27 °C or more in every month.

Marina Bay, Singapore

The sea temperature at Singapore (Marina Bay) today is 29.7 °C (85 °F) – water as warm as a bath. The usual October average is 29.7 °C. Over the last 30 days the sea temperature has held at around 29.7 °C. Swimmable all year – the sea averages 27 °C or more in every month. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.


Sea temperature by month – Marina Bay
MonthMinAvgMax
January27.7°C / 81.8°F27.9°C / 82.3°F28.2°C / 82.7°F
February27.6°C / 81.7°F28.0°C / 82.4°F28.7°C / 83.6°F
March27.9°C / 82.1°F28.6°C / 83.5°F29.2°C / 84.5°F
April29.3°C / 84.7°F29.8°C / 85.6°F30.4°C / 86.7°F
May30.2°C / 86.4°F30.4°C / 86.8°F30.8°C / 87.4°F
June30.2°C / 86.4°F30.4°C / 86.7°F30.6°C / 87.1°F
July29.9°C / 85.7°F30.0°C / 85.9°F30.1°C / 86.2°F
August29.5°C / 85.1°F29.7°C / 85.4°F29.8°C / 85.7°F
September29.2°C / 84.5°F29.5°C / 85.0°F29.8°C / 85.6°F
October29.3°C / 84.7°F29.7°C / 85.4°F30.0°C / 85.9°F
November29.2°C / 84.5°F29.7°C / 85.5°F30.2°C / 86.3°F
December28.6°C / 83.5°F28.9°C / 83.9°F29.1°C / 84.3°F

Air temperature by month – Marina Bay
MonthMinAvgMax
January25.5°C / 78.0°F26.3°C / 79.3°F27.0°C / 80.6°F
February25.8°C / 78.4°F26.7°C / 80.0°F27.5°C / 81.5°F
March26.4°C / 79.4°F27.1°C / 80.8°F27.7°C / 81.9°F
April26.9°C / 80.5°F27.6°C / 81.7°F28.2°C / 82.7°F
May27.7°C / 81.9°F28.3°C / 82.9°F28.7°C / 83.6°F
June27.6°C / 81.6°F28.0°C / 82.4°F28.3°C / 83.0°F
July27.9°C / 82.1°F28.2°C / 82.7°F28.4°C / 83.2°F
August27.2°C / 81.0°F27.6°C / 81.6°F27.8°C / 82.0°F
September27.4°C / 81.3°F27.7°C / 81.9°F28.0°C / 82.3°F
October27.2°C / 81.0°F27.7°C / 81.9°F28.1°C / 82.6°F
November26.7°C / 80.1°F27.3°C / 81.1°F27.8°C / 82.1°F
December26.1°C / 79.0°F26.8°C / 80.2°F27.3°C / 81.2°F

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes. (Copernicus ERA5)

Singapore holidays

Singapore is a city-state on an island at the southern tip of the Malay Peninsula, and its waterfront heart is Marina Bay, ringed by the Marina Bay Sands towers, Gardens by the Bay and the skyline of the financial district. The Marina Barrage opened across its mouth in 2008, and since 2010 the bay has been a freshwater reservoir, so Singapore's swimming beaches are elsewhere, on Sentosa and along the East Coast.

Beaches

On Sentosa Island, Siloso, Palawan and Tanjong beaches are man-made crescents of sand sheltered by breakwaters, with beach clubs, showers and calm, shallow water suited to children; Palawan Beach has a suspension bridge to a small islet. East Coast Park runs for about 13 km along the south-east shore, with a sandy beach, cycling paths and seafood restaurants. The water in the Singapore Strait is often greenish rather than clear, and busy with ships at anchor. The sea temperature on this page is measured in Marina Bay, beside Gardens by the Bay.

Things to do

Gardens by the Bay has the Supertree Grove, with a nightly light show, and two cooled conservatories, the Flower Dome and the Cloud Forest. The SkyPark observation deck on top of Marina Bay Sands looks over the bay, and the Merlion statue stands at the mouth of the Singapore River. Chinatown, Little India and Kampong Glam have temples, mosques and hawker centres, and a bumboat from Changi Point Ferry Terminal crosses to Pulau Ubin, an island of old kampong houses and cycling trails. On Sentosa, Universal Studios Singapore and the cable car draw day visitors.

Weather and best time to visit

At Marina Bay the sea stays above 27 °C / 81 °F all year, even in the coolest month.

Singapore is hot and humid all year, close to the equator. The north-east monsoon, from about December to early March, brings the wettest weeks at its start, and the south-west monsoon runs from about June to September; between them, afternoon thunderstorms are common. Smoke haze from fires in Sumatra or Borneo can occasionally affect air quality, most often from about August to October.

Hotels and where to stay

Marina Bay and the Civic District have Singapore's landmark hotels, Orchard Road the shopping hotels, and Sentosa the resorts next to the beaches.

Signature hotels: Marina Bay Sands (Marina Bay) · Raffles Singapore (City Hall) · Shangri-La Rasa Sentosa, Singapore (Siloso Beach, Sentosa)

Airport and getting there

Singapore Changi Airport (SIN), about 20 km east of Marina Bay, has flights from across Asia, Europe, Australia and North America; Jewel Changi, with its indoor waterfall, is linked to the terminals. The MRT runs from the airport to the city centre, and a taxi takes about 20 to 30 minutes. Sentosa is reached by the Sentosa Express monorail or the Sentosa Boardwalk from VivoCity, or by cable car from nearby HarbourFront Tower 2. Check current entry rules, including the online arrival card, before travelling.

Frequently asked questions

Is the sea at Marina Bay warm enough for swimming today?

Today, October 29, the sea at Marina Bay is 29.7 °C (85 °F) – water as warm as a bath. The usual October average is 29.7 °C / 85 °F.

What is a good sea temperature for swimming?

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C / 55 °F only for cold-water swimmers, 13–18 °C / 55–64 °F icy, 18–23 °C / 64–73 °F cold to refreshing, 23–28 °C / 73–82 °F refreshing to pleasantly warm and above 28 °C / 82 °F as warm as a bath. Right now the sea at Marina Bay is 29.7 °C / 85 °F.

Can you swim at Marina Bay in January?

Yes – the sea at Marina Bay (Singapore Strait, Singapore) stays swimmable all year. January is the coolest month, averaging 27.9 °C / 82 °F – refreshing to pleasantly warm water, ideal for most people.

When is the sea warmest at Marina Bay?

In May, at 30.4 °C / 87 °F on average. The coolest month is January at 27.9 °C / 82 °F – still above the 18 °C / 64 °F swimming line, so there is no off-season for swimming.