Asia weather & when to go: September


Sarawak & Sandakan

The dry summer season often extends well into September with a good chance of fine days throughout Sabah.  In particular the south and east should be exceptionally dry, giving a great window of opportunity to visit Danum Valley and neighbours. The beaches around KK also have a good chance of fine weather... Sarawak is also expecting good weather although the dry season is nearing its end and the chance of rain increases as October approaches. September is high season and therefore early booking is highly recommended...

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Favourable weather conditions continue throughout Indonesia during September. Days are typically dry with plenty of sunshine and blue skies, although rainfall can be expected towards the end of the month as the dry season draws to an end. Average daily temperatures rise slightly and occasional highs of 33-34°C can be experienced, especially in Sulawesi, Java and Kalimantan. As the month progresses, tourist numbers decline, making September an excellent time to visit Indonesia if you’re looking for good weather and fewer crowds…

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South Korea

The worst of the summer rains disappear towards the tail-end of September and autumnal colours start to paint a very pretty picture in the countryside. September, however, is still by and large a rainy month and the temperatures can remain very high, nudging towards a maximum of 30°C. You should expect more than a few downpours and the high levels of humidity may still feel uncomfortable...

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The views in Tibet are never less than awe-inspiring, but the autumnal colours of September really give them another dimension. Harvest season arrives with the Ongkor Festival, and despite the chill in the air, the days are still quite warm, especially in areas of low elevation such as Lhasa. Trekking around mountains and lakes is breathtakingly scenic, and a lot easier now the rains are easing up...

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Visiting Bhutan in September can be a great idea, especially towards the end of the month when the monsoons are drawing to a close and clearer skies can be expected. Cultural and Buddhist festivals are taking place across the country as Bhutan’s peak season begins. This is also a good time of year for trekking in the mountains, with pleasant weather, mild temperatures and visibility much improved...

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Rainfall is high throughout September. Across the country the flora and fauna is in full bloom and the moats at the Angkor Temples are full of life (avg temp: 26°C). When it rains it is usually for a few hours rather than all-day downpours, although these can also happen. One benefit of travelling in Cambodia at this time is that the Angkor Temples will be far less crowded. On the south coast and in more rural regions, such as Ratanakiri, rainfall can be heavier...

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Visit Nepal in September and you should have a great trip, especially towards the end of the month. By then the monsoon is properly over, the skies are bright and temperatures have cooled down - typically in the mid-20s. It's harvest time and the hillsides are green. Trekking is good, particularly as the days get drier with excellent visibility and ideal temperatures...

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Summer temperatures continue across Japan during September, ranging from 20°C in the north to 30°C in the south. Typhoon season lingers on across the islands of Okinawa, Shikoku and Kyushu during September; intense bursts of rainfall driven by the strong winds are a possibility across Honshu and central Japan, and even Hokkaido experiences the occasional rain shower…

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During August and September rainfall reaches peak levels throughout the country with temperatures dropping and the length and severity of rain showers increasing, even in Luang Prabang and Vientiane. Travel to the more remote regions of the country is difficult at times although road conditions have generally been greatly improved in recent years. Towards the end of the month as the rains start to subside, the countryside starts to look at its best, whilst rivers and waterfalls are at their most impressive. Rain will decrease as we move towards the dry season...

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September brings with it winds of change for both sides of the peninsula. The South-East monsoon and it’s afternoon downpours start to decline on the west coast (Langkawi, Penang, Pangkor) whilst over on the east coast (Tioman Island, Perhentian Islands, Terengganu, Redang) the winds of the North-East Monsoon start to blow, bringing rougher sea conditions and a slight drop in temperature. Visitor numbers will start to drop as the month progresses but the east coast will still be enjoying lots of sunny days and minimal rainfall...

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September in the Philippines is characterised by very heavy rainfall, not to mention a high chance of typhoons, making it often a challenge to travel around the islands during this period. Some small relief comes with a general reduction in temperatures, though with a monthly average of around 28°C it’s still very warm. In general, the best weather in the Philippines during September is to be found in the southern and eastern islands, such as Cebu and Bohol, while to the north one can expect regular monsoons...

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Sri Lanka

The south-west monsoon is having its final say, with high rainfall expected along the western and southern coasts (avg temp: 28°C). Rainfall also increases in the Tea Country, although further north, in the Cultural Triangle, drier weather is expected, with plenty of sunshine. 

Across the country cyclones can occur, especially towards the end of September and into October and November, bringing with them heavy rain and high winds. The east coast is expecting its final month of good weather, meaning that towards the end of the month rainfall is expected to increase...

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September sees summer draw to an end in Taiwan and brings about a slight dip in average temperatures to 24-30°C and less heavy downpours, although rainfall should still be expected...

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Another month of change as the rainfall starts to subside and temperatures also drop, although don’t expect snow anytime soon with temperatures remaining in the high 20’s and even early 30’s°C. The central plains to the south of Mandalay are once again the hottest and driest region of the country, with temperatures in the low 30’s°C and minimal rainfall. Rainfall and temperatures will continue to fall as October approaches...

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Country-wide, September is usually the wettest month of the year in Thailand with all corners of the country receiving rain in varying amounts. Thunder storms are not unusual as the humidity reaches its peak. Temperatures continue to decline throughout the month (avg temp: 25 - 29°C). Beach conditions are generally poor with very heavy rains to the west and increasingly heavy rains on the east of the peninsular. If you feel lucky then Hua Hin and nearby beaches are likely to offer the best beach conditions across the country...

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Wet weather is on the increase in central regions where, towards the end of the month in particular, rain is expected to become more frequent. Conditions in the north are moving in the opposite direction with a less rainfall expected, especially as we head towards October. In the mountains of Sapa things are also improving with trekking very much an option once again. Things remain largely unchanged in the south although rainfall does start to decrease as we move into October...

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