Weather in Singapore in July

How July compares

July is the 6th warmest month of the year in Singapore and ranks 74th of 134 destinations we compare for July - see where else is hot in July. Against London's average high of 21.8°C in July, Singapore is 6.6°C warmer by day and 12.5°C warmer at night.

Daytime and night-time in July

The typical July day in Singapore peaks at 28.4°C, but that is an average: the warmest 10% of days reach 29.4°C or more. About 100% of days top 25°C and 1 in 37 pass 30°C. Nights average 26.0°C; one night in ten drops to 24.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 30.7°C (2018-07-27) and the coldest night 23.5°C (1992-07-12).

Rain in July

Wet (more than 8 rainy days): about 24 days with 1 mm or more, 163 mm in total. Year to year it varies a lot - the wettest July was 2020 with 288 mm, the driest 1994 with 38 mm. Humidity averages 81%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in July

The sea averages 29.4°C - warm enough to swim (22°c+). Depending on the year it ranges from 29.1°C to 29.8°C. For the warmest sea here, come in May (30.1°C).

Sunshine and daylight

Around 3.0 hours of sunshine a day (estimated from cloud cover), 12.1 hours of daylight: the sun rises about 07:05 and sets about 19:16 local time in mid-July. Average cloud cover is 75%.

Is July a good time to visit Singapore?

It is a reasonable choice: hot days but expect showers. The best months for Singapore on our scoring are July, June, March; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Heat that stays with you after dark

The temperature alone does not tell the whole story: humidity averages 81%, so allow for the heat to feel more tiring than a typical July day at home. Loose, lightweight clothes and a relaxed pace make more sense than a packed schedule outdoors. Only 3% of days reach 30°C, but that does not make this mild weather; even the average night low is 26°C. Plan opportunities to cool down indoors, particularly around midday, and keep evening clothing light. If you rely on cool nights to recover from daytime heat, Singapore in July is likely to feel demanding.

Frequent rain is the main compromise

With about 24 rainy days, rain needs to be part of the plan rather than an occasional inconvenience. That figure does not mean every wet day is a washout, but it does make a completely dry stay a poor expectation. Carry a compact umbrella or lightweight waterproof and leave room to move outdoor plans around the weather. Sunshine averages about 3 hours within 12.1 hours of daylight, so long daylight hours should not be confused with long sunny spells. July suits travellers who are happy switching between indoor and outdoor time; it is less suitable if uninterrupted sunshine is the priority.

Warm swimming water, but not a cooling dip

The sea averages 29.4°C, making July suitable for swimming if you prefer warm water. The catch is that a dip may offer less relief from the heat than you expect: this is not brisk, cooling water. Keep swimming plans flexible around the weather rather than treating them as guaranteed daily fixtures. For the wider trip, the flight from London takes about 14 h 18 min, so be comfortable with the wet-weather trade-off before committing to long-haul travel. July works best for someone who values consistent warmth and warm seas more than dry days, strong sunshine or cooler evenings.