Climate and monthly weather forecast
Hat Yai, Thailand

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The climate of Hat Yai

Hat Yai, Thailand is a tropical city with a climate that falls under the category of an Am or "Tropical Monsoon" according to the Köppen-Geiger classification. This means the city experiences heavy rains during certain parts of the year, brought on by monsoons. The stagnant geographical position of the city ensures the climate remains relatively consistent throughout the year.

The city experiences a warm climate all year round. Monthly average temperatures sporadically fluctuates throughout the year, with the highest temperatures from March to May, averaging between 34.2°C (93.6°F) and 34.6°C (94.3°F). The temperatures slightly dip, but remain warm, from June to February with average temperatures staying between 29.7°C (85.5°F) and 33.5°C (92.3°F).

Relative humidity reflects steady percentages year-round, being most significant from October to December by 87% and 85% respectively. The least humidity is experienced during February and March with 77% and 76%. The stable tropical climate leads to this minor monthly variation in relative humidity.

The rainfall follows its distinct pattern. Months from May to December received considerably higher rainfall between 105mm (4.13") and 317mm (12.48"). This contrasts significantly with the rest of the year, where the months of January to April receives minimal rain varying from 24mm (0.94") to 75mm (2.95").

The best time to visit Hat Yai

The comparatively dry months from January to March would be the ideal time to visit Hat Yai. This is when the city experiences the least rainfall, with January and February receiving just 54mm (2.13") and 24mm (0.94") of precipitation respectively. Temperatures during this period are warm but not uncomfortably hot, ranging from 30.4°C (86.7°F) to 34.2°C (93.6°F). The UV index ranges from 11 in January to 12 in March, making sun protection essential.

The worst time to visit Hat Yai

The wettest month in Hat Yai is generally November, with an average precipitation of 317mm (12.48"), and with the rain falling on an average of 21 days. This, coupled with high humidity levels of 87% and heat with temperatures touching an average high of 31.8°C (89.2°F), could lead to challenging conditions for visitors who are not used to this type of climate. Therefore, this period can be considered as the least optimal time to visit.

Spring weather in Hat Yai

The spring season in Hat Yai, during March to May, could be a bit hotter compared to other times of the year. Temperature during these months hover between 33.8°C (92.8°F) and 34.6°C (94.3°F). Rainfall starts to increase gradually during this period, from 75mm (2.95") in March to 148mm (5.83") in May.

Summer weather in Hat Yai

Contrary to the typical expectations of summer, the months of June to August in Hat Yai are characterized by regular precipitation. This is also accompanied by temperatures that range from 33.1°C (91.6°F) and 33.5°C (92.3°F). With rainfall ranging from 105mm (4.13") to 119mm (4.69") and humidity around 79%-80%, these months are tropical rather than typically summer-like.

Autumn weather in Hat Yai

Autumn, from September to November, is the rainiest season in Hat Yai. Rainfall reaches its peak at 317mm (12.48") in November. Average high temperatures during these months are comfortably warm, ranging from 31.8°C (89.2°F) to 33.1°C (91.6°F).

Winter weather in Hat Yai

The winter season in Hat Yai, from December to February, is warm with temperatures ranging between 29.7°C (85.5°F) and 32.7°C (90.9°F). Relative humidity is at its highest during this season at 85%. Despite this being a slightly cooler time of the year, the rainfall remains high in December at 268mm (10.55"), but reduces sharply to 54mm (2.13") in January.

Weather in January

January heralds a respite from the tropical heat in Hat Yai, Thailand, with temperatures sinking to the lively lows of 22°C (71.6°F). This cool weather encourages outdoor activities throughout the day and night. The slight contraction in daylight hours makes for mauve evenings, inviting early retreats indoors. Weather in January »

Weather in February

The city of Hat Yai enters February with temperatures that remain stable compared to the preceding month. The hushed whispers of winter gradually grow fainter as the month progresses. Short-lived drizzles, a stark contrast to January's downpours, provide the city's flora with a soothing bath. Weather in February »

Weather in March

March in Hat Yai brings a seismic shift in the weather patterns, as the city witnesses a surge in temperatures and rainfall. The coolness of winter is swiftly replaced with a humid heat wave, making the joys of the previous months a ghost of the past. Weather in March »

Weather in April

Hat Yai in April continues the weather trajectory established in March, with rising temperatures and increased precipitation. The prolonged daylight hours intensify the heat, casting a hot haze over the city. While seeking relief from the heat, visiting beaches or water bodies emerge as prevailing recreational activities. Weather in April »

Weather in May

May's commencement in Hat Yai is characterized by a slight tapering of the scalding streak from the previous months. A pronounced increase in humidity blankets the cityscape, giving rise to the shimmering mirage effect known to tropical climates. Weather in May »

Weather in June

As the year reaches its midpoint in June, Hat Yai experiences weather patterns that closely adhere to those witnessed in May. The heat persists, but its severity is subdued due to a minimal dip in the daytime temperature. A reduction in rain from the May highs breathes ease into daily routines, with decreased disruptions due to weather conditions. Weather in June »

Weather in July

July brings Hat Yai into the full throes of summer with temperatures maintaining their consistent high from June, providing a constant tropical atmosphere. This continuity of climate conditions supports the sustained growth of the region's tropical vegetation. Weather in July »

Weather in August

Hat Yai steps into August, sustaining the weather conditions observed throughout the summer. The monotonous march of heat and humidity continues, creating a seamless blanket of scorching air and steam. The vegetation of Hat Yai reaches its lush peak during August, generously coating the cityscape in a vibrant green hue. Weather in August »

Weather in September

In September, Hat Yai experiences a minor retreat in temperatures, providing some relief to the scorching summer heat. Humidity levels increase, resulting in more moisture-rich air that revitalizes one's skin. The extended daylight hours provide ample opportunity for day trips or long indoor siestas. Weather in September »

Weather in October

October in Hat Yai marks a pronounced shift in the weather tendencies of the preceding months, with a steady sequence of cooling temperatures and heavy rainfall. Hat Yai's wilderness dons a resplendent garb of fresh greens and blossoming flora, narrating visual tales of wildlife bounty. Weather in October »

Weather in November

November arrives in Hat Yai, ushering in pronounced weather changes, with temperatures continuing to fall, matching the cascade of extensive rainfall. Adorned with lush greenery refreshed by the October deluge, the city takes on a more vibrant color palette. Weather in November »

Weather in December

December in Hat Yai embraces the climax of the year's weather cycle, with a remarkable dip in temperature and reduction in rainfall. The cityscape undergoes a bold transformation as it ushers in the new year under soothing temperatures and a glistening solar spectacle caused by the distinctive December sunshine. Weather in December »

Frequently asked questions

How much does it rain in Hat Yai?

Throughout the year, in Hat Yai, Thailand, there are 160 rainfall days, and 1726mm (67.95") of precipitation is accumulated.

When is the lowest UV index in Hat Yai?

January, November and December, with an average maximum UV index of 11, are months with the lowest UV index in Hat Yai, Thailand.

What is the driest month in Hat Yai?

February is the month with the least rainfall in Hat Yai. Rain falls for 3 days and accumulates 24mm (0.94") of precipitation.

What month has the most sunshine in Hat Yai?

February has the most sunshine of the year, with an average of 9h of sunshine.

What is the month with the highest UV index in Hat Yai?

February through October, with an average maximum UV index of 12, are months with the highest UV index.

What is the least humid month in Hat Yai?

With an average relative humidity of 76%, March is the least humid month in Hat Yai, Thailand.

What month is the hottest in Hat Yai?

April is the month that records the highest temperatures in Hat Yai, Thailand, with averages ranging from a high of 34.6°C (94.3°F) to a low of 23.7°C (74.7°F).

When are the longest days in Hat Yai?

With an average of 12h and 30min of daylight, June has the longest days of the year in Hat Yai, Thailand.

What are the months with the least sunshine in Hat Yai?

The months with the least sunshine are June, August through December, with an average of 6h of sunshine.

What is the most humid month in Hat Yai?

The most humid month is November, with an average relative humidity of 87%.

What is the wettest month in Hat Yai?

November is the month with the most rainfall. Rain falls for 21 days and accumulates 317mm (12.48") of precipitation.

What are the coldest months in Hat Yai?

December, with its high-temperature average of 29.7°C (85.5°F) and a low-temperature average of 22.6°C (72.7°F), is the coldest month in Hat Yai, Thailand.

What is the month with the shortest days in Hat Yai?

With an average of 11h and 42min of daylight, December has the shortest days of the year in Hat Yai, Thailand.

Is there Daylight Saving Time (DST) in Hat Yai?

Hat Yai does not observe Daylight Saving Time (DST). +07 timezone is used over the entire year.

Average temperature
Hat Yai, Thailand

Average temperature - Hat Yai, Thailand

The warmest month (with the highest average high temperature) is April (34.6°C).
The month with the lowest average high temperature is December (29.7°C).

The month with the highest average low temperature is May (24°C).
The coldest month (with the lowest average low temperature) is January (22°C).

Average humidity
Hat Yai, Thailand

Average humidity - Hat Yai, Thailand

The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is March (76%).

Average rainfall
Hat Yai, Thailand

Average rainfall - Hat Yai, Thailand

The wettest month (with the highest rainfall) is November (317.1mm).
The driest month (with the least rainfall) is February (24.4mm).

Average rainfall days
Hat Yai, Thailand

Average rainfall days - Hat Yai, Thailand

The months with the highest number of rainy days are October and November (21 days).
The month with the least rainy days is February (3 days).

Average daylight / Average sunshine
Hat Yai, Thailand

Average daylight / Average sunshine - Hat Yai, Thailand

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

The month with the most sunshine is February (Average sunshine: 9h).
The months with the least sunshine are June, August, September, October, November and December (Average sunshine: 6h).

Average UV index
Hat Yai, Thailand

Average UV index - Hat Yai, Thailand

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The months with the lowest UV index are January, November and December (UV index 11).

Hat Yai, Thailand

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