April Weather in Ratchaburi, Thailand

Last updated: August 27, 2025

April in Ratchaburi, Thailand brings a warm and humid climate, with maximum temperatures reaching up to 40°C (104°F) and an average temperature around 30°C (87°F). As the month progresses, residents and visitors alike experience a pleasant minimum temperature of 21°C (70°F). However, April is also characterized by 88 mm (3.5 in) of rainfall spread across approximately 11 days, contributing to a relative humidity of 69%. This combination of heat and moisture creates a tropical environment that showcases the vibrant beauty of Ratchaburi, making it a unique experience for all who venture there.

April Temperature in Ratchaburi

In April, Ratchaburi, Thailand, experiences a significant rise in temperatures as the dry season reaches its peak. With minimum temperatures hovering around 21°C (70°F), the region sees an average temperature of 30°C (87°F), making outdoor activities increasingly enjoyable. However, the heat can be intense, with maximum temperatures soaring up to 40°C (104°F). This dramatic increase from the milder months of January to March sets the tone for the upcoming hot season, indicating that visitors should be prepared for the sweltering conditions. As April progresses, the consistent warmth underlines Ratchaburi's tropical climate, inviting both locals and tourists to embrace the vibrant outdoor culture despite the heat.

April Weather in Ratchaburi: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ratchaburi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ratchaburi, April typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec798185878685848483828179
Data source: Temperature data for Ratchaburi generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Ratchaburi

In April, Ratchaburi, Thailand experiences a noticeable surge in precipitation, with 88 mm (3.5 in) of rainfall spread over 11 rainy days. This marks a sharp increase from the earlier months, highlighting the transition into the wet season. Following a relatively dry start to the year, where January and February combined saw just 33 mm (1.3 in), the rainfall in April sets the stage for the even heavier downpours to come in May and the following months. This upward trend not only signifies the arrival of more consistent rain but also hints at the lush greenery and vitality that accompanies the seasonal shift. As locals prepare for more frequent showers, April serves as an important precursor to the torrential rains typical of the summer months, reaffirming nature's rhythm in Ratchaburi.

April Precipitation Trends in Ratchaburi

The chart displays monthly precipitation patterns in Ratchaburi, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Ratchaburi, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec211230881411251201672092028317
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ratchaburi

In April, Ratchaburi experiences a noticeable rise in humidity, reaching 69%, which marks a significant leap from the relatively dry conditions of the earlier months. This increase signals the onset of the wet season, as humidity levels continue to climb sharply, peaking in the following months. Following April, both May and June bring even higher humidity levels, soaring to 79% and 87%, respectively. The gradual ascent in humidity from January’s 58% to April highlights a clear trend, with the atmosphere becoming increasingly tropical as the year progresses. This shift not only affects comfort levels but also sets the stage for the lush landscapes that characterize Ratchaburi’s warmer months.

April Average Humidity in Ratchaburi

This chart illustrates the average monthly humidity levels in Ratchaburi, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Ratchaburi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%59%62%69%79%87%89%90%87%83%77%66%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ratchaburi

In April, Ratchaburi, Thailand, experiences a consistent UV Index of 14, categorizing it as extreme exposure. This level of UV radiation calls for vigilance, as a burn time of just 10 minutes underscores the importance of protective measures. Following the trends set in previous months, April maintains the high index noted in March, reflecting the region's intense sun exposure as the dry season progresses. The UV levels remain significantly elevated throughout the months leading up to and beyond April, emphasizing the necessity for sun safety amidst these extreme conditions. To learn more about how to protect yourself from the sun's powerful rays, visit Ratchaburi UV Index.

Maximum UV Index Levels in Ratchaburi for April

The chart shows the monthly maximum UV Index (UVI) for Ratchaburi in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Ratchaburi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141314141313109
Data source: Ratchaburi April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Ratchaburi

April in Ratchaburi, Thailand, welcomes spring with a captivating 319 hours of sunshine, making it a delightful month for outdoor enthusiasts and sun seekers alike. This sunny interlude comes after March's peak of 333 hours, showcasing a slight decrease but still well above the year’s average, suggesting that while the days may be getting warmer, the sunshine remains plentiful. Following April, May continues to shine with 317 hours, indicating a consistent trend of vibrant daylight as the region transitions into the lushness of the rainy season. This gradual ebb and flow of sunshine across the months not only enhances the natural beauty of Ratchaburi but also provides ample opportunities for exploration and enjoyment of its stunning landscapes.

Monthly Sunshine Duration in Ratchaburi: April Highlighted

The April sunshine duration represents the total number of hours Ratchaburi experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec251h299h333h319h317h300h280h267h260h283h293h315h
Data source: Ratchaburi April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ratchaburi During April

In Ratchaburi, Thailand, April marks a notable shift in weather patterns, with the chance of sunny days dropping to just 18%. This decline follows a few months of relatively higher sunshine—February boasts a significant 77%—and starkly contrasts with the sunnier start to the year. As the region transitions from the hot months of March, where the likelihood of sunshine is already waning at 58%, to the rainy season ahead, the weather takes a turn for the overcast. This trend hints that while early months may bask in brighter skies, April signals the approach of moisture-laden air, making it a less reliable time for sun-seekers in Ratchaburi.

Percentage of Sunny Days in April in Ratchaburi

The chart illustrates the percentage of sunny days in Ratchaburi throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ratchaburi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%77%59%18%31%16%11%8%8%14%26%62%
Data source: Ratchaburi April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ratchaburi in April

April in Ratchaburi, Thailand, ushers in consistent 12 hours of daylight, mirroring the trend set by the preceding month of March. As daylight gradually lengthens from January's 11 hours into the early spring, Ratchaburi experiences a brief shift to longer afternoons and evenings during April and the following months. This period of extended daylight reflects a broader trend of stable daylight hours that characterize the region, allowing residents and visitors to enjoy the vibrant outdoor activities and natural beauty that thrive in this warm climate. As the days remain plentiful until October, the rhythm of light casts a welcoming atmosphere in Ratchaburi, enriching the overall experience of this enchanting locale.

Average Daylight Hours in Ratchaburi for April

The chart illustrates the variation in daylight duration in Ratchaburi throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 41m12h 2m12h 25m12h 44m12h 53m12h 49m12h 32m12h 10m11h 48m11h 29m11h 19m
Data source: Ratchaburi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Ratchaburi

In April, Ratchaburi, Thailand experiences a noticeable dip in average wind speed, dropping to 1.6 m/s (4 mph), making it one of the calmer months of the year. This reduction contrasts with the preceding months, where wind speeds hovered around 2.1 to 2.2 m/s. As the heat of summer approaches, the gentle breezes of April create a tranquil atmosphere, offering a brief respite from the typically higher winds seen in January through March. However, the trend shifts again in the following months as wind speeds increase slightly in May before stabilizing, demonstrating the region's dynamic climatic patterns and inviting locals and visitors alike to appreciate the serene April winds.

Average April Wind Speed in Ratchaburi

The chart displays monthly wind speed patterns in Ratchaburi, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.02.21.6 m/s1.82.22.22.01.51.72.12.4
Data source: Ratchaburi April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Ratchaburi Compares to Other Months

Weather in Ratchaburi varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Ratchaburi, focusing on differences in temperature, rainfall, humidity, and UV levels.

April and January exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 21°C (70°F) to a scorching maximum of 40°C (104°F), with an average temperature of 30°C (87°F). This month also sees higher humidity at 69% and more frequent rainfall, totaling 88 mm (3.5 in) over 11 days. In contrast, January offers milder conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F) and an average of 26°C (80°F). Precipitation is considerably lower in January, with only 21 mm (0.8 in) falling over just 3 days and humidity at a more comfortable 58%. For more detailed insights, check out Ratchaburi weather in January.

When comparing the weather in April and February, it's clear that April is notably warmer and wetter. April boasts a higher average temperature of 30°C (87°F), with maximums reaching up to 40°C (104°F). In contrast, February's temperature averages at 27°C (82°F) with a maximum of 36°C (97°F). Additionally, April experiences significantly more precipitation, with 88 mm (3.5 in) recorded over 11 days, while February only sees 12 mm (0.5 in) over 2 days. Humidity levels are also higher in April at 69%, compared to February's 59%. For a detailed overview, you can check Ratchaburi weather in February.

In comparing the weather between March and April, both months share similar minimum temperatures at 21°C (70°F) and average temperatures around 30°C (86-87°F). However, April experiences slightly warmer maximum temperatures, reaching up to 40°C (104°F) compared to March's peak of 38°C (102°F). Additionally, April sees significantly more precipitation, with 88 mm (3.5 in) over 11 days, while March has only 30 mm (1.2 in) over 4 days. The humidity also rises in April, averaging 69% compared to March's 62%. For a more detailed look at March weather, you can visit Ratchaburi weather in March.

April and May showcase similar average temperatures, hovering around 30°C (87°F), but May experiences slightly higher minimum temperatures, starting at 24°C (75°F) compared to April's 21°C (70°F). Whereas April sees 88 mm (3.5 in) of precipitation over 11 days, May has significantly more rainfall at 141 mm (5.5 in) across 20 days, resulting in increased humidity levels, rising from 69% in April to 79% in May. For a detailed comparison of weather conditions, you can check out Ratchaburi weather in May.

In April, the weather in Ratchaburi offers a range of temperatures, with minimums reaching 21°C (70°F) and maximums peaking at 40°C (104°F). The month sees an average temperature of 30°C (87°F) along with 88 mm (3.5 in) of precipitation spread over 11 days, resulting in a humidity level of 69%. In contrast, June experiences slightly higher minimum temperatures at 25°C (77°F) and slightly lower maximums of 38°C (100°F), with an average temperature of 30°C (85°F). However, June is marked by increased rainfall, totaling 125 mm (4.9 in) over 21 days, leading to a higher humidity level of 87%. For more details on the weather patterns, check out Ratchaburi weather in June.

April and July exhibit distinct weather patterns, with April generally warmer and less humid than July. In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average temperature of 30°C (87°F). The month sees 88 mm (3.5 in) of precipitation over 11 days, accompanied by a humidity level of 69%. In contrast, July has a higher minimum temperature of 25°C (77°F) and a slightly lower maximum of 37°C (99°F), with an average of 29°C (85°F). However, it experiences more rainfall—120 mm (4.7 in) over 22 days—and increased humidity at 89%. For those interested in more specifics, you can check Ratchaburi weather in July.

April and August exhibit some notable differences in weather patterns. April boasts higher average temperatures, ranging from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average of 30°C (87°F). However, it experiences less precipitation, totaling 88 mm (3.5 in) over 11 rainy days and a humidity level of 69%. In contrast, August has slightly lower average temperatures, with a minimum of 24°C (76°F) and a maximum of 37°C (99°F), averaging 29°C (84°F). August is also considerably wetter, receiving 167 mm (6.6 in) of rainfall over 25 days and a higher humidity level of 90%. For more specific details, check out this link: Ratchaburi weather in August.

In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average of 30°C (87°F). The month sees about 88 mm (3.5 in) of precipitation over 11 days, accompanied by a humidity level of 69%. In contrast, September experiences slightly higher temperatures, with a minimum of 24°C (76°F) and a maximum of 37°C (100°F), averaging 29°C (84°F). However, it is significantly wetter in September, receiving 209 mm (8.2 in) of rain over 24 days, and the humidity increases to 87%. For more detailed weather information, check out Ratchaburi weather in September.

April and October in Ratchaburi present distinct weather characteristics. April typically experiences higher maximum temperatures, peaking at 40°C (104°F) and averaging around 30°C (87°F), while October sees a cooler average of 28°C (83°F) with a maximum of 35°C (95°F). In terms of precipitation, October is significantly wetter, receiving 202 mm (7.9 in) over 21 rainy days compared to April’s 88 mm (3.5 in) over just 11 days. Additionally, October tends to be more humid, with levels reaching 83% compared to April’s 69%. For more details, check Ratchaburi weather in October.

In comparing the weather in April and November, one can observe notable differences in temperature and humidity. April tends to be hotter, with average temperatures around 30°C (87°F) and maximums reaching up to 40°C (104°F), whereas November has a more moderate climate with an average of 27°C (81°F) and maximum temperatures peaking at 34°C (93°F). Precipitation is slightly higher in April, with 88 mm (3.5 in) over approximately 11 days compared to November's 83 mm (3.3 in) over 10 days. Additionally, November experiences higher humidity levels at 77%, compared to 69% in April. For more details on the weather conditions in November, you can visit Ratchaburi weather in November.

April and December present contrasting weather conditions. April boasts higher temperatures, with a minimum of 21°C (70°F) and an average peak of 30°C (87°F), reaching as high as 40°C (104°F). Additionally, it experiences significant rainfall with 88 mm (3.5 in) over 11 days and humidity at 69%. In contrast, December features milder temperatures, with a minimum of 16°C (61°F) and a comfortable average of 26°C (79°F), peaking at 35°C (95°F). Precipitation drops dramatically to just 17 mm (0.7 in) over 3 days, accompanied by a slightly lower humidity level of 66%. For more detailed information on December weather, you can explore Ratchaburi weather in December.

Compare Ratchaburi's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Ratchaburi

April in Ratchaburi brings a notable shift in weather patterns, as the temperatures soar, often reaching up to 40°C (104°F), creating a stark contrast to the cooler months. With an average temperature of 30°C (87°F), the days are characterized by intense heat and humidity levels around 69%, making it imperative for visitors to stay hydrated and seek shade. While April experiences a fair share of precipitation, with about 88 mm (3.5 in) across 11 days, these rain showers are often brief and don't significantly diminish the heat. As the month progresses, the blend of warmth and sporadic rains sets the stage for the vibrant and lush landscape typical of the region. For a detailed look at Ratchaburi's weather throughout the year, check out Ratchaburi Climate.