Thailand Weather and Seasons

A few good weather sites whereby you can get current conditions, the forecast and satellite photos:

Thailand's climate varies by region, and the following covers just the Bangkok central region and the north and northeast. The peninsular south is less predictable and more subject to variations. Thailand's climate is tropical, but not oppressively hot as in some other tropical countries around the world. However, what you consider hot may depend on where you're from, your body size, and your body's natural metabolism.

The seasons are determined by the "monsoons", which are consistent wind patterns that change at different times of the year due to the differences between land and sea temperatures and pressures.

The seasons are as follows:

    November thru February - Dry, "Cool" Season - Winds are predominantly from the north when this season starts. Daytime high temperatures are between 30-35 C (85-95 F), humidity between 50% - 60%. Every day is a sunny day. The ground will still be saturated in many places in November due to the previous rainy season. This is the season to travel around Thailand.

    March thru June - Hot Season - Travellers unaccustomed to the heat should not arrive in this period. Even the Thais have problems in the hottest spells. Temperatures can soar to 40 C (105 F) on the hottest days, and at night the humidity rises. Sometime between late June to late July, evening downpours start to come.

    July thru October - Rainy Season - By "rainy", we are talking about evening downpours. It rarely rains for more than an hour at a time. The mornings are usually sunny, but a thunderstorm or two can come towards the late afternoon or at night. This usually starts in late July or August, but by September there is a thunderstorm on most days, often resulting in flooded streets but cooler nighttime temperatures. Because Bangkok is flat, you rarely find any place with more than a foot of water, and it usually drains away ... slowly ... in a few hours. By late September and October, the major rivers are high and there is sometimes permanent flooding along the river, sometimes quite deep. There is a massive investment in pumps to manage the problem, but sandbagging of economically valuable areas and flooding of adjacent areas is not uncommon. This season usually ends abruptly in late October when the winds suddenly change to the north.

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