Climate and monthly weather forecast
Trat, Thailand

Situated within the geographical boundaries of Thailand, Trat bears the characteristics of a Tropical monsoon climate as classified by the Köppen climate system. On average, the swing in temperatures over the year remains moderate, with high temperatures varying from 30.5°C (86.9°F) to 33.2°C (91.8°F) and lows from 21.8°C (71.2°F) to 24.7°C (76.5°F). Humidity in Trat runs relatively high throughout the year, witnessing a difference of approximately 18 percentage points, the highest usually peaking in the months with the most rainfall.

The amount of rainfall received by Trat varies greatly throughout the year, going from a low of 23mm (0.91") in December to a peak of 1098mm (43.23") in August. Rainfall patterns show that the wettest months occur from May to September, with significant drops in rainfall before and after this period. The number of rainy days per month echoes this pattern, surging from just 4 days in January to 28 days in August. Trat experiences varied daylight durations through the year, beginning with 11.5 hours per day in January and reaching a maximum of 12.8 hours per day between June and July.

The most unique weather conditions in Trat is the drastic difference in rainfall from May to September, which is classified as the monsoon season. This period sees exceptionally high levels of precipitation, beyond the typical patterns of a Tropical monsoon climate.

The ideal time to visit Trat is arguably during the dry months of December to February when the rainfall drops significantly to an average of 23mm (0.91"), 39mm (1.54"), and 68mm (2.68") respectively. Additionally, these months witness lower humidity levels, making it a more pleasant environment for tourists. The temperatures during these months remain moderate, falling between highs of 31.5°C (88.7°F) to 32.2°C (90°F) and lows of 21.8°C (71.2°F) to 24°C (75.2°F), offering a range conducive to various outdoor activities.

Based on climatological data, the least favorable time to travel to Trat is between May and September, the duration of the monsoon season. During these months, the city witnesses the heaviest rainfall, ranging from 410mm (16.14") in May to a whopping 1098mm (43.23") in August. The number of rainy days per month also significantly increases during this time, going from 22 days in May to 28 days in August. These conditions coupled with the highest humidity levels of the year make this period less ideal for travel.

In Trat, the months of March to May signify the spring season. Here, the temperature ranges from lows of 24°C (75.2°F) to 24.7°C (76.5°F) and highs between 32.4°C (90.3°F) and 33.2°C (91.8°F). The month of May signals the onset of the monsoon, with rainfall spiking to 410mm (16.14") spread across an average of 22 days in the month. Despite high rainfall, these months also see an increase in daylight hours from 12.1 hours in March to 12.7 hours in May.

The summer season in Trat, lasting from June to August, is characterized by high rainfall caused by the monsoon. Maximum temperatures vary little during this time, staying between 31.3°C (88.3°F) and 32.6°C (90.7°F), while minimum temperatures hover around 24°C (75.2°F). The area sees rainfall levels peak during this season, hitting 1098mm (43.23") in August, along with an increased number of rainy days, reaching up to 28 in the same month. Daylight remains fairly stable during the period, topping out at around 12.8 hours.

Autumn, from September to November, in Trat still shows significant monsoon influence initially, with heavy rainfall of 671mm (26.42") in September, tapering off to 93mm (3.66") by November. Temperatures remain relatively high, with highs from 30.9°C (87.6°F) to 32.2°C (90°F) and lows from 23.8°C (74.8°F) to 24°C (75.2°F). The humid weather persists, albeit with a slight downward trend, and daylight hours begin to gradually reduce from 12.2 hours in September to 11.6 hours in November.

Winter in Trat, from December to February, marks a respite from rain with the driest period seen during these months. Rainfall drops drastically in December to 23mm (0.91"), slowly increasing to 68mm (2.68") in February. Temperatures maintain a comfortable range, with highs between 31.5°C (88.7°F) and 32.2°C (90°F), and lows from 21.8°C (71.2°F) to 24°C (75.2°F). The number of daylight hours also diminishes slightly over the winter reaching a low of 11.4 hours in December.

The commencement of the year in Trat, Thailand is witness to moderate temperatures, setting a neutral precedent for the subsequent months. Fluctuations in temperatures are from 21.8°C (71.2°F) to 31.5°C (88.7°F), resulting in a pleasant balance of warmth and coolness. Weather in January »

February progresses with minor climatic changes. Warming temperatures introduce a change in atmospheric conditions, notably a surge in humidity levels by 4 units. Considerably more rain falls in February than in January, revealing a typical weather pattern of a tropical region. Weather in February »

As March arrives, weather conditions continue their transformative journey. Noticeably, the mercury rises, leading to a slight fall in relative humidity. Rainfall escalates to 105mm (4.13"), a marked increase from the preceding months. Weather in March »

April furthers the transition process commenced in March. With temperatures soaring to 33.2°C (91.8°F), there is a surge in moisture content in the atmosphere. Such rise in temperatures and humidity is typical in regions with a tropical climate. Weather in April »

May contrasts starkly with Trat’s earlier climatic conditions. Rainfall is at its peak with 410mm (16.14") pouring down on the city, a substantial increase from April. It is a significant departure from the scanty rainfall recorded in the initial few months. Weather in May »

June retains most of May's climatic features, incurring minimal alterations in weather conditions. The rainfall increases slightly resulting in optimal relative humidity of 87%. The situation persists for the majority of the month, causing the city to become completely drenched. Weather in June »

July, similar to its predecessor, is dominated by considerable rainfall, a trend in the monsoon months of Trat. Downpour is slightly less but the overall environment remains extremely humid. Over the span of the month, locals endure a few meteorological surprises that reflect the unpredictable nature of tropical climates. Weather in July »

The weather in August in Trat, Thailand, reflects the essence of peak monsoons. A record-breaking rainfall of 1098mm (43.23") leaves the city drenched. It is the highest recorded rainfall for the entire year, marking the peak of the monsoon season. Weather in August »

As September arrives, the rainfall decreases remarkably to 671mm (26.42"), a direct effect of diminished monsoon impact. The humidity continues to linger, creating a typical post-monsoon ambience. This period marks the gradual departure from monsoon to drier weather conditions. Weather in September »

October signifies the beginning of the retreat of monsoons in Trat. The city receives appreciably less rainfall than September, marking a significant drop in precipitation. Though the city retains some humidity, the overall weather improves substantially. Weather in October »

In November, Trat's climate undergoes a marked transformation. Rainfall recedes further to 93mm (3.66"), adding to the unfolding relief from the monsoons. Provided the decrease in precipitation and humidity, the overall atmospheric pressure reduces. Weather in November »

December confirms the cessation of the monsoon season with the least amount of rainfall, a mere 23mm (0.91"). Lowered temperatures from 22.1°C (71.8°F) to 31.7°C (89.1°F), along with reduced humidity, mark the arrival of the winter season. Weather in December »