Climate and monthly weather forecast
Nakhon Si Thammarat, Thailand


The climate of Nakhon Si Thammarat

Nakhon Si Thammarat, a city in southern Thailand, witnesses a tropical monsoon climate as per the Köppen climate classification. This type of climate is marked by high temperatures throughout the year, abundant rainfall, and intensive humidity predominantly due to its geographical position near the equator. The 12-month period showcases relatively small fluctuations in climatic conditions.

Observing the data for annual weather, the monthly average temperature ranges from a high of 29.6°C in December to a peak of 34°C from April to June. On the other hand, the daily low temperatures vary relatively less and stay within the range of 22°C in March to the upper mark of 24°C in May and June. Hence, the weather maintains a tropical warmth, even during the 'coolest' month, December.

The rainfall pattern yields an obvious distinction, with the period from October to December receiving an enormous share of annual precipitation. The wettest month is November, recording an average of 631mm of rainfall. On the contrary, the driest month is February, with just 68mm of average rainfall.

Relative humidity showcases minor fluctuations throughout the year. The percentage of atmospheric moisture content ranges from 78% in August to a high of 87% in November.

The city also gets a substantial amount of daylight all year round, oscillating from 11.6 hours in December to a high of 12.6 hours in June and July.

The best time to visit Nakhon Si Thammarat

Given the climatic trend, the best time to visit Nakhon Si Thammarat is between February and April. This period coincides with the region's lowest rainfall measures of less than 110mm, thereby reducing the likelihood of weather disruptions to outdoor plans. Moreover, the mean monthly temperatures stay between 30.4°C to 34°C during this span, making it suitable for visitors who appreciate tropical climate. Particularly the month of February stands out, with an average low of 22°C and a manageable average high of 31.5°C.

The worst time to visit Nakhon Si Thammarat

Travelers are advised to avoid the months from October to December, due to high rainfall averages, soaring above 300mm. This is the peak rainy season with November recording a whopping 631mm of rainfall on average. These months witness a substantial number of rainy days with November having as many as 22 rainy days. Travel plans during this time may be disrupted by wet weather.

Spring weather in Nakhon Si Thammarat

Spring, encompassing March and April, brings warm conditions with average high temperatures touching 34°C. The morning lows stay between 22.7°C to 23.7°C providing a relief from the afternoon heat. Rainfall during this period is at a moderate level varying from 90mm in April. The daylight received is also more compared to the winter months moving from 12.1 hours in March to 12.3 hours in April.

Summer weather in Nakhon Si Thammarat

This region does not experience a typical summer but the period from May to July is relatively drier and warmer. The average high temperatures remain constant at 34°C. Nightly lows range from 24°C in May to 23.5°C in July. Rainfall measurements exhibit an increase, from 174mm in May to 118mm in July. The city receives the highest amount of daylight, 12.6 hours, in June and July.

Autumn weather in Nakhon Si Thammarat

Autumn spans August to October. The temperature decreases slightly during this period, with the average highs shifting from 33.7°C in August to 31.8°C in October. The average low follows a similar trend, subtly changing from 23.5°C in August to 23.2°C in October. However, rainfall significantly increases, particularly in October, amounting to 303mm on average. The length of daylight decreases as well, down to 11.9 hours in October.

Winter weather in Nakhon Si Thammarat

November and December comprise the winter season in Nakhon Si Thammarat. Despite being the coolest months, average high temperatures still range between 30.2°C to 29.6°C, whereas the average low temperature hovers between 23°C to 22.5°C. November witnesses the highest precipitation of 631mm, whereas December experiences 452mm. The city receives around 11.7 hours of daylight during these months.

Weather in January

January ushers in the new year in Nakhon Si Thammarat with a blend of warmth and precipitation. It is marked by a high temperature average of 30.4°C and a low of 22.1°C, accompanied by a high relative humidity of 84%. The fluctuations between temperatures and humidity set the tone for brief periods of rainfall, which contribute to conditions favouring lush vegetation growth. Weather in January »

Weather in February

Nakhon Si Thammarat maintains its balmy climate in February mirroring the weather of the month past, with slight increases in temperature and decrease in rainfall and relative humidity. The city receives modest rainfall of 68mm over a span of 6 days, resulting in breathable and comfortable outdoors for tourists and locals alike. Weather in February »

Weather in March

As the residents of Nakhon Si Thammarat transition into the month of March, they experience a gradual increase in temperature highs reaching 32.9°C with minimal changes in minimum temperature. Quite ideal for the tropical tourism Nakhon city is reputed for, despite the slight hike in rainfall to 90mm. Weather in March »

Weather in April

April greets Nakhon Si Thammarat with remarkable weather adjustments. The maximum temperature touches the hottest recorded for the year at 34°C, while the minimum temperature reading is similarly on the rise at 23.7°C. However, increased heat does not equate to a dearth in precipitation, as rainfall measurements illustrate 107mm during this month. Weather in April »

Weather in May

Continuing a similar pattern from April, May in Nakhon Si Thammarat is marked by high temperatures and substantial rainfall. The intensity of the rainfall climbs to 174mm, signaling the onset of the monsoon period well known in this region of Thailand. Weather in May »

Weather in June

June carries on the monsoon legacy with ample rainfall, although not as intense as May. The recorded high and low temperatures, prevail around the 34°C and 24°C marks respectively. The composition of these factors results in a comfortable atmosphere for locals and visitors to undertake various indoor activities, including cultural tourism, this city is celebrated for. Weather in June »

Weather in July

July in Nakhon Si Thammarat presents mostly unchanged weather conditions from June, where the high temperature averages around 33.8°C. The city witnesses consistent rainfall measured at 118mm, maintaining a persistent tropical environment. Weather in July »

Weather in August

Persisting the familiar weather pattern, August in Nakhon Si Thammarat yields minimal variations in parameters from July. August's rainfall stands at a relatively considerable 130mm over the course of 14 days, maintaining the set monsoonal trend that characterizes this period. Weather in August »

Weather in September

September marks an all-time high in the amount of rain received in the city of Nakhon Si Thammarat. A significant 162mm of rain is recorded across 17 days, constructing a dominating monsoon atmosphere. Despite the unrelenting rain, the bustling city life continues, featuring an assortment of indoor activities that residents and visitors can engage in. Weather in September »

Weather in October

October in Nakhon Si Thammarat witnesses a dramatic increase in rainfall, pushing the recorded figures to a significant annual climax of 303mm. This shift in weather patterns announces a full-blown transition into the rainy season, influencing the city's usual functioning and temporarily reducing the rush of visitors. Weather in October »

Weather in November

The last month of the autumn, November, is tropical month in Nakhon Si Thammarat, Thailand, with an average temperature ranging between min 23°C and max 30.2°C. The transition from October to November sees an average high-temperature of a still hot 30.2°C, indicating a minor variance from the prior month. Weather in November »

Weather in December

In Nakhon Si Thammarat, the year culminates with December experiencing a considerable drop in rainfall levels to 452mm, offering a much-needed reprieve after the intense downpours of the previous months. Nonetheless, the rainfall remains substantial compared to the posit-summer months, thus maintaining the city's vibrant ecosystem. Weather in December »


How many days does it rain in Nakhon Si Thammarat?

In Nakhon Si Thammarat, during the entire year, the rain falls for 169 days and collects up to 2497mm of precipitation.

What is the driest month in Nakhon Si Thammarat?

The month with the least rainfall is February, when the rain falls for 6 days and typically collects 68mm of precipitation.

What is the warmest month in Nakhon Si Thammarat?

Nakhon Si Thammarat sees its peak of temperatures during April through June, with an average high-temperature of 34°C.

When are the longest days in Nakhon Si Thammarat?

With an average of 12h and 36min of daylight, June has the longest days of the year in Nakhon Si Thammarat.

What is the least humid month in Nakhon Si Thammarat?

With an average relative humidity of 78%, August is the least humid month in Nakhon Si Thammarat, Thailand.

What is the most humid month in Nakhon Si Thammarat?

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

What is the wettest month in Nakhon Si Thammarat?

November is the month with the most rainfall in Nakhon Si Thammarat. Rain falls for 22 days and accumulates 631mm of precipitation.

What month is the coldest in Nakhon Si Thammarat?

The lowest temperatures are recorded in December, with averages reaching a high of 29.6°C and a low of 22.5°C.

What is the month with the shortest days in Nakhon Si Thammarat?

December has the shortest days of the year, with an average of 11h and 36min of daylight.

Is there Daylight Saving Time (DST) in Nakhon Si Thammarat?

Nakhon Si Thammarat, Thailand, does not utilize Daylight Saving Time (DST). +07 timezone is used over the entire year.

Average temperature
Nakhon Si Thammarat, Thailand

Average temperature - Nakhon Si Thammarat, Thailand

The warmest months (with the highest average high temperature) are April, May and June (34°C).
The month with the lowest average high temperature is December (29.6°C).

The months with the highest average low temperature are May and June (24°C).
The coldest month (with the lowest average low temperature) is February (22°C).


Average humidity
Nakhon Si Thammarat, Thailand

Average humidity - Nakhon Si Thammarat, Thailand

The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is August (78%).


Average rainfall
Nakhon Si Thammarat, Thailand

Average rainfall - Nakhon Si Thammarat, Thailand

The wettest month (with the highest rainfall) is November (631.2mm).
The driest month (with the least rainfall) is February (68.2mm).


Average rainfall days
Nakhon Si Thammarat, Thailand

Average rainfall days - Nakhon Si Thammarat, Thailand

The month with the highest number of rainy days is November (22 days).
The month with the least rainy days is March (4 days).


Average daylight
Nakhon Si Thammarat, Thailand

Average daylight - Nakhon Si Thammarat, Thailand

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).


Nakhon Si Thammarat, Thailand

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