Last updated: August 27, 2025
In May, Si Racha, Thailand experiences warm temperatures, with a maximum soaring to 37°C (99°F) and an average of 30°C (86°F), while nighttime lows settle around 22°C (72°F). This month is characterized by high humidity levels reaching approximately 80%, creating a tropical atmosphere. Rainfall is frequent, with 166 mm (6.5 in) of precipitation accumulated over 22 days, making it essential for visitors and locals to be prepared for intermittent showers throughout the month. Overall, May is a blend of heat and moisture, typical of Thailand's coastal climate.
In Si Racha, Thailand, May ushers in warm and inviting temperatures as the region transitions deeper into the tropical heat. With minimums around 22°C (72°F) and averages reaching 30°C (86°F), the weather is predominantly sultry, perfectly suited for beach outings and outdoor explorations. The mercury can soar to a sizzling 37°C (99°F), tying the hottest days seen in the month of April. Interestingly, May continues the trend of gradually rising temperatures that begins in the earlier months, establishing a consistent warmth that invites both locals and visitors to enjoy the vibrant scenery. As the month progresses, humidity levels may also increase, hinting at the upcoming rainy season, but for now, it's all about soaking up the sun and enjoying the balmy evenings that Si Racha has to offer.
In May, Si Racha experiences a significant increase in rainfall, with precipitation peaking at 166 mm (6.5 in) over 22 rainy days, marking it as one of the wettest months of the year. This upward trend in May follows the earlier months, where rainfall steadily rises from a mere 27 mm (1.1 in) in January to 122 mm (4.8 in) by April. The transition into the monsoon season is palpable, as the combination of humidity and frequent showers creates a lush, vibrant landscape. As the waters continue to rise through the summer, May sets the stage for the heavy downpours that characterize the subsequent months, making it a pivotal point in Si Racha's climatic rhythm.
As May rolls in, Si Racha, Thailand experiences a significant uptick in humidity, peaking at a notable 80%. This marks a striking transition from the relatively lower humidity levels of 59% in January and 58% in February. The shift towards the wet season becomes increasingly evident as April’s 70% gives way to the intense moisture prevalent in May, setting the stage for the following months. By June, humidity climbs further to 85%, with July and August reaching their zenith at 86% and 88%, respectively. This trend highlights a gradual increase in humidity that characterizes the region's tropical climate, creating a warm, muggy atmosphere typical of the summer months. As the humidity peaks, residents and visitors alike brace for a lush, vibrant landscape, fueled by the rising moisture levels.
In Si Racha, Thailand, the UV Index peaks in the months leading up to June, with May showcasing a consistent level of 14, categorized as extreme. This means that sun exposure can lead to burns in as little as 10 minutes, making it crucial for residents and visitors alike to take protective measures. Interestingly, this trend of high UV levels begins in February, escalating from an already high index of 10 to its peak of 14 in both April and May, before tapering slightly in June. As summer approaches, the persistent UV intensity calls for vigilant sun safety practices. For detailed information on daily UV levels, you can check the Si Racha UV Index.
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In Si Racha, Thailand, May brings a delightful continuation of the sunny season, boasting 322 hours of sunshine—a slight dip from April's 321 hours but still vibrant for outdoor activities and exploration. As we move from the coolness of March, which enjoyed the highest sunshine of 336 hours, to the consistent light of early summer, May stands out as a promising month, nurturing the lush landscapes that define this coastal paradise. Following May, the hours of sunlight gradually decrease, settling into the rainy season with July and August offering 287 hours each. This trend highlights the region’s inviting climate, perfect for those seeking both sun-soaked days and the charming allure of tropical showers later in the season.
In Si Racha, Thailand, the likelihood of encountering sunny weather tends to fluctuate significantly throughout the year. Notably, the sun shines brightest in February with a robust 71% chance, while April sees a sharp decline to just 16%. May’s prospects improve slightly to 31%, yet remain modest compared to the year's peak months. As the rainy season approaches, the chances of sunny days dwindle further into the summer months, hitting a low of 9% in August. Overall, while May offers a glimmer of sunshine, it's wise to keep an eye on the weather as the region transitions from the dry to the wet season.
In Si Racha, Thailand, the pattern of daylight duration showcases a rhythm of stability and gradual change throughout the year. From January to February, the sun graces the region with a consistent 11 hours of light, marking a gentle beginning to the year. As spring approaches in March and April, daylight extends to 12 hours, inviting longer evenings and a hint of vibrancy. This 12-hour daylight persists through the warm months of May to August, providing ample opportunity for outdoor enjoyment. As the days begin to shorten again in September, the daylight gradually declines back to 11 hours by November, reflecting the cyclical nature of the seasons in this coastal paradise. Overall, the daylight duration in Si Racha remains impressive and balanced, creating a perfect backdrop for both relaxation and adventure year-round.
In Si Racha, Thailand, the winds of May dance gently, with an average speed of 2.3 m/s (5 mph), continuing the trend observed in the months preceding it. While April saw a dip to 1.9 m/s (4 mph), May experiences a slight revival, setting the stage for a breezier June, which jumps to 3.2 m/s (7 mph). The early months of the year generally showcase milder winds, peaking in June and December when they reach their highest average at 3.2 m/s (7 mph). Overall, May's moderate breeze hints at the approaching summer's spirited gusts, providing a seamless transition into the livelier winds of the mid-year months.
Weather in Si Racha varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Si Racha, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present contrasting weather conditions, each with its unique characteristics. In May, temperatures range significantly from a minimum of 22°C (72°F) to a maximum of 37°C (99°F), with an average of 30°C (86°F). This month is characterized by high humidity at 80% and substantial rainfall, with a total of 166 mm (6.5 in) spread over 22 days. In contrast, January features milder temperatures, with a minimum of 17°C (62°F), an average of 27°C (81°F), and a maximum of 35°C (95°F). The humidity is noticeably lower at 59%, and precipitation is minimal, totaling just 27 mm (1.1 in) over only 4 days. For a more detailed look at January weather, visit Si Racha weather in January.
May and February experience distinctly different weather patterns. In May, temperatures rise significantly, with minimums around 22°C (72°F) and maximums reaching 37°C (99°F), resulting in a hot average of 30°C (86°F). The month is also marked by high humidity at 80% and considerable rainfall, accumulating 166 mm (6.5 inches) over about 22 days. In contrast, February offers milder conditions, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 35°C (95°F), and an average of 28°C (82°F). Precipitation is minimal, with only 27 mm (1.1 inches) over 5 days, and humidity is notably lower at 58%. For a more detailed look at February's weather, you can check Si Racha weather in February.
In comparing the weather between May and March, May typically experiences higher temperatures, with averages reaching up to 30°C (86°F) and maximums soaring to 37°C (99°F), while March maintains slightly cooler averages of 29°C (85°F) and highs of 36°C (97°F). Additionally, May is notably wetter, with precipitation levels hitting 166 mm (6.5 in) across 22 days, compared to March's 60 mm (2.4 in) spread over only 11 days. Moreover, humidity levels in May are significantly higher at 80%, compared to 61% in March, contributing to a noticeably muggier atmosphere. For more details, you can check out Si Racha weather in March.
In comparing the weather of April and May, both months experience high temperatures, with May showing slightly warmer averages. April's temperatures range from a minimum of 20°C (67°F) to a maximum of 37°C (99°F), with an average of 29°C (85°F), while May has min temperatures of 22°C (72°F) and averages around 30°C (86°F). Precipitation also increases in May, with 166 mm (6.5 in) over 22 days, compared to April's 122 mm (4.8 in) over 18 days. Additionally, May exhibits a higher humidity level at 80%, compared to April's 70%. For further insights into April’s weather specifics, you can refer to Si Racha weather in April.
May and June both exhibit warm temperatures, with a minimum of 22°C (72°F) in May and 25°C (77°F) in June, while averaging 30°C (86°F) throughout both months. However, May is noticeably hotter at its maximum, reaching 37°C (99°F), compared to June's high of 35°C (96°F). Additionally, May experiences more precipitation, totaling 166 mm (6.5 in) over 22 days, while June receives 109 mm (4.3 in) across the same number of days. Humidity levels are relatively high in both months, at 80% in May and slightly higher at 85% in June. For more specific insights into the weather conditions, check out Si Racha weather in June.
In comparing the weather between May and July, we can observe a few key differences and similarities. May typically experiences slightly warmer temperatures with a minimum of 22°C (72°F), an average of 30°C (86°F), and a maximum of 37°C (99°F). In contrast, July sees higher minimum temperatures at 25°C (77°F) but a lower average of 29°C (85°F) and a maximum of 36°C (97°F).
Both months have significant rainfall, with May receiving 166 mm (6.5 in) over about 22 days, while July experiences a similar amount of 168 mm (6.6 in) spread across 25 days, indicating that both months are quite wet. Humidity levels also rise slightly in July, reaching 86%, compared to 80% in May. For more detailed information about weather patterns, you can check Si Racha weather in July.
When comparing the weather in May and August, May generally experiences higher average temperatures with a range from a minimum of 22°C (72°F) to a maximum of 37°C (99°F). In contrast, August's temperatures are slightly cooler, with minimums of 24°C (76°F) and maximums reaching 35°C (96°F). Precipitation levels are somewhat similar, with May recording 166 mm (6.5 in) over 22 days and August slightly less with 160 mm (6.3 in) over 24 days. Humidity tends to be higher in August at 88%, compared to May's 80%, making August feel more muggy. For a detailed look at August weather specifics, you can find more information here: Si Racha weather in August.
May and September differ significantly in terms of weather conditions. May typically experiences warmer temperatures, with a minimum of 22°C (72°F) and an average of 30°C (86°F), reaching a maximum of 37°C (99°F). Precipitation during this month averages 166 mm (6.5 in) over about 22 rainy days, accompanied by high humidity levels at 80%. In contrast, September is slightly cooler with minimum temperatures around 24°C (76°F) and an average of 28°C (83°F), peaking at 35°C (95°F). However, it is also wetter, receiving about 262 mm (10.3 in) of rainfall over 25 days and experiencing increased humidity at 87%. For more detailed insights into the weather patterns in September, you can refer to Si Racha weather in September.
In comparing the weather between May and October, we observe some notable differences. May features warmer temperatures with a minimum of 22°C (72°F) and an average high of 30°C (86°F), while October sees slightly cooler averages, with a minimum of 23°C (74°F) and an average high of 28°C (83°F). However, October has higher rainfall, accumulating 228 mm (9.0 in) over 23 days, compared to May's 166 mm (6.5 in) across 22 days. Humidity is also higher in October, reaching 83% versus May's 80%. For more detailed weather information, you can check Si Racha weather in October.
May and November present quite contrasting weather patterns. In May, temperatures soar with a minimum of 22°C (72°F), an average of 30°C (86°F), and peaking at a hot 37°C (99°F). The month is also characterized by high humidity at 80% and substantial rainfall, with 166 mm (6.5 in) falling over 22 days. In contrast, November experiences slightly cooler temperatures, with a minimum of 22°C (72°F), an average of 28°C (83°F), and a maximum of 35°C (96°F). Precipitation is significantly reduced to 59 mm (2.3 in) across just 10 days, and humidity levels drop slightly to 78%. For more specific details, you can check Si Racha weather in November.
In comparing the weather of May and December, notable differences emerge in temperature and precipitation patterns. May tends to be hotter, with average highs reaching 30°C (86°F) and maximum temperatures soaring to 37°C (99°F), accompanied by high humidity levels of 80% and substantial rainfall of 166 mm (6.5 in) over 22 days. In contrast, December offers a milder climate, with average temperatures around 27°C (81°F) and maximums capping at 35°C (96°F). The humidity decreases to 70%, and rainfall is significantly less, totaling only 28 mm (1.1 in) over just 3 days, making it a drier month overall. For more details on December conditions, you can check Si Racha weather in December.
As May unfolds in Si Racha, you can expect a distinct shift in the weather compared to the preceding months. Temperatures soar, with highs reaching up to 37°C, making it one of the hotter months of the year. While the average temperature hovers around a balmy 30°C, the nights offer some relief as temperatures drop to a minimum of 22°C. However, May is also marked by increased humidity at about 80% and significant rainfall, accumulating 166 mm over approximately 22 days. This blend of heat and moisture sets the stage for a lush and vibrant landscape, though it may necessitate a bit of planning for outdoor activities. For a more detailed look at what to expect throughout the year, be sure to check out Si Racha Climate.