It Won’t be So Rainy in the First Half of Jan 2023 Compared to Dec 2022

Rain, rain, go away, come again another day.

Whoever sang that song jinxed it because it won’t be as rainy in the first half of January 2023 compared to the splashing wet December 2022 we had.

We will be experiencing dry and windy weather for the days to come. 

You can finally put away your umbrellas and raincoats for good outdoor fun. Maybe finally do that jog you’ve been putting off by blaming the rain? 

This the Northeast Monsoon Season

This is because the Northeast Monsoon conditions currently prevailing over the region are forecast to persist into January 2023, with low-level winds blowing from the northwest or northeast of Singapore.

As the Northern Asian continent plunges deeper into colder winter, air will become colder and denser over there. This will create and strengthen a high-pressure system as air pressure is increased there. Cold air sinks, causing pressure to increase.

However, due to the warm nature of Singapore, being near the equator, we experience higher temperatures and lower air pressures. As we know, high-pressure air flows to areas of lower pressure, and this causes winds to prevail from the Northern Asian continent over to here.

But why would it come from the northeastern direction, you may ask? 

There is an effect called the Coriolis Effect, which deflects air to the right due to the Earth’s rotational spin on its axis. 

Image: National Environment Agency

As a result, the winds will bend and cause prevailing Northeastern winds to arrive in Singapore.

For now, Singapore is experiencing a monsoon surge, an intensification of the monsoon effect – caused by even higher pressure systems in the Northern Asian continent. This is a normal phenomenon because they are in the dead of winter.  

But when you look at the picture from National Environment Agency (NEA), you will notice that the winds travel over the South China Sea. Wouldn’t it pick up moisture and bring rain, just like it did in December? 

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Why the Dry Weather, then? 

The reason why it was splashing wet in December was that there were large-scale convergence of winds over Singapore and the surrounding vicinity as well, which brought about relatively windy conditions and afternoon passing showers. 

However, this depends on where the rain band is. As a result of the rainband moving away from Singapore, for now, we will experience periods of dry and windy weather instead. 

This reminds me of my text conversations, dry and sad.

It’s going to be a hot and dry start to 2023. Sian, lah. But hey, look on the bright side, we can do our laundry every day. 

You can learn more about the different weather systems over at NEA’s website here.

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Featured Image: IamDoctorEgg /