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Contents
- The climate of Rayong
- The best time to visit Rayong
- The worst time to visit Rayong
- Spring weather in Rayong
- Summer weather in Rayong
- Autumn weather in Rayong
- Winter weather in Rayong
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
The climate of Rayong
Rayong, Thailand, enjoys an Aw (predominate climate) as per the Köppen climate classification, the nomenclature for the commonly referenced Tropical wet and dry or savanna climate. Nestled in the southeast coast of the country, Rayong is characterized by substantial seasonal variance in temperature and rainfall.
As per provided averages, high temperatures range from 31.9°C (89.4°F) to 34.3°C (93.7°F) throughout the year, while lows vary from 21.5°C (70.7°F) to 27.1°C (80.8°F). Precipitation sees stark disparities across the months, from a minimal 6mm (0.24") in December to a high of 255mm (10.04") in September. Relative humidity for the region consistently hovers between 70% and 82%, reflecting its tropical location. Akin to the varying rainfall, daylight hours also portray a slight fluctuation ranging from 11.4 hours to 12.9 hours per day.
Distinctive weather patterns emerge from an in-depth exploration of the data. Months with especially high rainfall such as September, May, and July regularly witness significantly more rainy days. Conversely, the drier months such as December see a sharp drop in precipitation.
As per provided averages, high temperatures range from 31.9°C (89.4°F) to 34.3°C (93.7°F) throughout the year, while lows vary from 21.5°C (70.7°F) to 27.1°C (80.8°F). Precipitation sees stark disparities across the months, from a minimal 6mm (0.24") in December to a high of 255mm (10.04") in September. Relative humidity for the region consistently hovers between 70% and 82%, reflecting its tropical location. Akin to the varying rainfall, daylight hours also portray a slight fluctuation ranging from 11.4 hours to 12.9 hours per day.
Distinctive weather patterns emerge from an in-depth exploration of the data. Months with especially high rainfall such as September, May, and July regularly witness significantly more rainy days. Conversely, the drier months such as December see a sharp drop in precipitation.
The best time to visit Rayong
Considering climatological statistics, the optimal period for a visit to Rayong is between December and February. During these months, temperatures remain conducive for exploration, ranging from the high of 32°C (89.6°F) to the low of 21.3°C (70.3°F). Rainfall registers around 21mm (0.83") to 6mm (0.24"), significantly lower compared to the rest of the year, resulting in fewer clouds and clearer skies. With relative humidity oscillating between 70% and 74%, visitors can enjoy a relatively drier tropical climate. The consistent daylight hours of 11.4 to 11.7 hours per day further allow ample time for outdoor activities.
The worst time to visit Rayong
Potential visitors to Rayong might want to avoid the wet months from May to September. Precipitation during this period escalates dramatically from 82mm (3.23") in April to a peak of 255mm (10.04") in September. The temperature high stays around 33.6°C (92.5°F), while the low drops to somewhat around 26.4°C (79.5°F). Increased humidity, which touches 80%, coupled with heavy rainfall, might hinder outdoor activities. Furthermore, the frequency of rainfall days can reach up to 17 days in a month, significantly restricting the scope for sightseeing.
Spring weather in Rayong
Spring in Rayong, which spans from March to May, experiences gradual warming with high temperatures climbing from 33.2°C (91.8°F) to 34.3°C (93.7°F). The temperature lows also see an increase from 26.2°C (79.2°F) to 27.1°C (80.8°F). Contrasting the stable daylight hours that remain fixed at 12.7 hours per day in May, rainfall starts showing an uptick. Starting from 70mm (2.76") in March, it shoots up to 199mm (7.83") by the end of the season.
Summer weather in Rayong
Summers months of June, July, and August in Rayong bring the onset of the rainy season. Rainfall ranges from 165mm (6.5") in June, climbs to 172mm (6.77") in July, and reduces slightly to 132mm (5.2") in August. Despite high precipitation, temperatures remain high with an average monthly high ranging from 32.7°C (90.9°F) to 32.3°C (90.1°F). Evenings are also warm, with lows varying from 26.8°C (80.2°F) to 26.5°C (79.7°F).
Autumn weather in Rayong
Autumn, extending from September to November, witnesses the highest precipitation levels in Rayong. Rainfall peaks in September at an overwhelming 255mm (10.04"), decreasing to 194mm (7.64") in October and dropping sharply to 51mm (2.01") in November. The temperature highs remain consistent around 32°C (89.6°F) while the lows drop from 26.4°C (79.5°F) in September to 23.3°C (73.9°F) in November.
Winter weather in Rayong
Winter in Rayong, from December to February, is comparatively drier with limited rainfall. The precipitation drops significantly to 6mm (0.24") in December, rising slightly to 21mm (0.83") in February. The temperature highs remain steady around 32°C (89.6°F) throughout the season while the lows range from 21.3°C (70.3°F) in December, to 24.5°C (76.1°F) in February.
Weather in January
The start of the year in Rayong, Thailand, brings stable weather. Although remaining relatively warm, tourists might notice a distinct decrease in humidity when comparing to the latter part of the year. Ample daylight and sparse rainfall make it a suitable time for outdoor activities. Weather in January »
Weather in February
February advances with a gradual increase in both sea and air temperatures. There is a noticeable rise in humidity as tropical characteristics begin to manifest. It is observed that February receives slightly more rainfall, with an estimated rainfall recorded at 37mm (1.46"), when compared to January. Weather in February »
Weather in March
As Rayong advances into March, the transition into the hotter seasons becomes apparent. Humidity levels see another increase, maintaining the trend from February. The weather grows warmer, and the rainfall encounters a notable increase. Weather in March »
Weather in April
Drawing closer to the peak of the summer, April's weather is characterized by consistently high temperatures. True to tropical style, this month brings longer daylight hours and pronounced balmy nights. The average rainfall continues to rise significantly from the previous month, recorded at 82mm (3.23"). Weather in April »
Weather in May
May kick-starts the monsoon period in Rayong, exhibited by an onset of heavier rainfall. During this time, visitors generally anticipate a surge in humidity. This month holds the record for the highest average rainfall for the year, with a massive jump from previous measurements to 199mm (7.83"). Weather in May »
Weather in June
While the rain persists into June, the drier periods between showers offer intervals of calm. Although the temperatures remain relatively stable, the extended duration of daylight hours endows June. The level of rainfall sees a slight decrease from May, recorded at 165mm (6.5"), implying occasional brief respites from the rain. Weather in June »
Weather in July
July follows suit of the preceding months, offering balanced daylight hours and warm weather. The humidity and rainfall are elevated, although not deviating too drastically from June's values. Notably this period marks the third consecutive month of rainfall over 165mm (6.5"). Weather in July »
Weather in August
August continues the trend of the monsoon season in Rayong. The weather parameters remain more or less consistent with the monsoon characteristics of preceding months. A slight dip in rainfall is observed, with the average value dipping to 132mm (5.2") from the previous month's higher recording. Weather in August »
Weather in September
September often signals the nearing end of the monsoon period. Whilst high humidity levels persist, the average rainfall in this month reaches a yearly peak of 255mm (10.04"). This is the second highest rainfall in the year after May. Weather in September »
Weather in October
As October ushers in, Rayong begins to see a respite from the sustained monsoon inflows. While the general weather influences remain consistent with the earlier months, there is a noticeable dip in both humidity and rainfall. With the reduced amount of rainfall dipping to 194mm (7.64"), tourists can anticipate longer hours of sunlight and more opportunities for outdoor activities. Rayong greets October with an average high-temperature of a still hot 32.3°C (90.1°F), marking a slight deviation from the preceding month. Weather in October »
Weather in November
November initiates the departure from the monsoon season, with reduced rainfall and humidity levels. The plummet in rainfall averages to 51mm (2.01"), trending towards the drier season. Despite the seasonal shift, the temperature remains consistently warm as daylight hours slightly decrease. Weather in November »
Weather in December
December marks a return to the stable weather conditions observed at the start of the year, with low rainfall and high daylight hours. Even as the temperature begins to experience a slight decrease, the town’s typical warm weather remains. Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Rayong?
Rayong's coldest season falls during January and September, averaging a high-temperature of 31.9°C (89.4°F).
How many days does it rain in Rayong?
Throughout the year, in Rayong, Thailand, there are 111 rainfall days, and 1383mm (54.45") of precipitation is accumulated.
What month is the sea coldest in Rayong?
With an average sea temperature of 27.3°C (81.1°F), January is the month with the coldest seawater in Rayong, Thailand.
What part of the year is the hottest in Rayong?
Rayong reaches its average highest temperatures in April, measuring 34.3°C (93.7°F) at the peak and 27.1°C (80.8°F) at the lowest.
What is the month with the warmest sea water in Rayong?
May is the month with the warmest seawater in Rayong, Thailand, with an average sea temperature of 30.1°C (86.2°F).
When are the longest days in Rayong?
The month with the longest days in Rayong is June, with an average of 12h and 54min of daylight.
What is the most humid month in Rayong?
September and October, with an average relative humidity of 82%, are most humid months in Rayong.
What is the wettest month in Rayong?
September is the month with the most rainfall. Rain falls for 17 days and accumulates 255mm (10.04") of precipitation.
What is the least humid month in Rayong?
The least humid month in Rayong, Thailand, is December, with an average relative humidity of 70%.
What is the driest month in Rayong?
December is the month with the least rainfall in Rayong. Rain falls for 1 days and accumulates 6mm (0.24") of precipitation.
What is the month with the shortest days in Rayong?
December has the shortest days of the year, with an average of 11h and 24min of daylight.
Is there Daylight Saving Time (DST) in Rayong?
Rayong does not observe Daylight Saving Time (DST). +07 timezone is used over the entire year.
Average temperature
Rayong, Thailand
The warmest month (with the highest average high temperature) is April (34.3°C).
The months with the lowest average high temperature are January and September (31.9°C).
The month with the highest average low temperature is April (27.1°C).
The coldest month (with the lowest average low temperature) is December (21.3°C).
Average humidity
Rayong, Thailand
The months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is December (70%).
Average rainfall
Rayong, Thailand
- Average rainfall in January:
20.7mm - Average rainfall in February:
36.5mm - Average rainfall in March:
70.3mm - Average rainfall in April:
81.6mm - Average rainfall in May:
198.6mm - Average rainfall in June:
165.1mm
- Average rainfall in July:
171.8mm - Average rainfall in August:
132.3mm - Average rainfall in September:
255.2mm - Average rainfall in October:
194.4mm - Average rainfall in November:
50.8mm - Average rainfall in December:
5.9mm
The wettest month (with the highest rainfall) is September (255.2mm).
The driest month (with the least rainfall) is December (5.9mm).
Average rainfall days
Rayong, Thailand
- Average rainfall days in January:
2 days - Average rainfall days in February:
4 days - Average rainfall days in March:
4 days - Average rainfall days in April:
6 days - Average rainfall days in May:
15 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
14 days - Average rainfall days in September:
17 days - Average rainfall days in October:
15 days - Average rainfall days in November:
8 days - Average rainfall days in December:
1 days
The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is December (1 days).
Average sea temperature
Rayong, Thailand
The best month for swimming (with the highest average sea temperature) is May (30.1°C).
The coldest month (with the lowest average sea temperature) is January (27.3°C).
Average daylight
Rayong, Thailand
- Average daylight in January:
11h and 3min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 4min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 3min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 3min - Average daylight in December:
11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
Rayong, Thailand
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