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Climate - Singapore

Temperature, rainfall, prevailing weather conditions, when to go, what to pack

United States version (°F - inches - feet). See also the metric version (°C - mm - meters)

Flag - Singapore

Map - Singapore

The climate in Singapore is equatorial, ie hot, humid and rainy, throughout the year. The country, which is at the same time an island, a city and a state, is actually at the Equator, in an area where there is always the opportunity for the formation of showers and thunderstorms.
Although the climate is fairly uniform, you may notice some changes in the course of the year, due to the two monsoons: the one from the north-east, occurring from November to March, is more rainy especially in the first part, and the one from the south-west, occurring from June to September. The first period between the two monsoon, from April to early June, is the hottest and the most unpleasant of the year.
Throughout the year, about 95 inches of rain fall, with a peak of around 10 inches per month in November, December and January, while in the rest of the year, from 6 to 8 inches per month fall, so there is no month without abundant rainfall. From November to January, the rains in addition to being more abundant, are more frequent and last longer, and occur usually in the afternoon or in the evening. On the other hand, the south-west monsoon is the period of the so-called Sumatras: the rains are shorter, and occur as heavy downpours which can erupt at any moment, usually in the early morning or during the morning, caused by squall lines coming from the island of Sumatra. In addition to thunderstorms, during the period of the south-west monsoon, from the island of Sumatra may also come clouds of smoke and haze caused by forest fires, which in the worst occasions can create a pall of unhealthy air, which can be dangerous for the population. In general, this can happen until mid-October.
In the city there are many covered footpaths and walkways, made up to protect passers-by from the rain.
Here is the average precipitation.
Average precipitation Singapore
Singapore J F M A M J J A S O N D Year
Prec. (in) 9.8 6.9 7.9 7.7 6.9 6.7 6.5 7.5 7.1 8.3 9.8 10.4 95.5
Days 17 12 13 15 15 13 13 15 14 16 19 19 181

The temperatures in Singapore are uniform, since they vary just a few degrees between the cooler and the warmer months. The minimum temperature goes from 74 °F in December and January, to 76 °F in May and June, while the maximum ranges from 86 °F in December and January to 89 °F in April and May. Even the records are close to the average: at night it almost never drops below 68 °F, while during the day it rarely rises above 91/93 °F. But it is especially the constant humidity that makes the weather annoying, since the relative humidity doesn't usually go below 70%, even during the warmest hours. If you add to this the urban heat island effect, typical of big cities, where the heat is trapped between streets and buildings still at night, you will understand how the climate of Singapore is not very pleasant for those who are not used to. The sea breezes can relieve a little the feeling of heat in the harbor area and neighborhoods along the coast, while apart from the breezes, there can be some wind only in January, February and March, ie in the second part of the northeast monsoon. For the rest, heat and flat calm dominate, at least within the city. Fortunately, buildings and transportation are equipped with air conditioning.
Here are the average temperatures.
Singapore average temperatures
Singapore J F M A M J J A S O N D
Min (°F) 74 74 75 76 76 76 76 76 75 75 74 74
Max (°F) 86 88 89 89 89 88 87 87 87 88 87 85

The amount of sunshine is never very good, since there are 5 or 6 hours of sunshine per day on average for most of the year; we should remember that at the equator the length of the day is always 12 hours. The least sunny month is December, with 4 hours, while February is the sunniest, with 7 hours. The equatorial sun is very strong, however, so that you should pay attention to it even on cloudy days.


Singapore is not exactly a destination for beach tourism, however, the sea is warm all year round.
Sea temperature Singapore
Singapore J F M A M J J A S O N D
Sea (°F) 82 82 82 84 86 86 84 84 84 84 84 82

When to go

Although there is not a big difference between the periods, probably the best month to visit Singapore is February: it's the sunniest, and on average there are "only" 12 days of rain. November and December are among the cooler months, but they are also the wettest: it rains almost every day, and sometimes the rain lasts more than in other seasons. January and February, in the second part of the "winter" monsoon, are less rainy, and in any case they are not as muggy as April, May and June, also because they are the only months when there's a bit of wind. After the warm period which goes from March to June, July and August are also fine, if you can only travel in this period: at the bottom the difference with January and February is small.

What to pack

All year round: tropics-friendly, loose fitting clothing, a scarf for the breeze, light sweatshirt and pashmina for airconditioned places, light raincoat or umbrella.
For the reef, equipment for snorkeling, water shoes or rubber soled shoes.

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