April Weather in Ratchathewi, Thailand

Last updated: August 27, 2025

April in Ratchathewi, Thailand, is characterized by warm temperatures and moderate humidity, making it a typical transitional month in the region. The maximum temperature can soar up to 38°C (100°F), while the average remains a comfortable 30°C (87°F). Nighttime brings a slight respite, with temperatures dipping to a minimum of 21°C (70°F). This month also sees a total precipitation of 107 mm (4.2 in), distributed over approximately 12 days, contributing to the area's vibrant greenery. With humidity levels holding steady at around 70%, visitors and locals alike experience a consistent tropical atmosphere throughout April.

April Temperature in Ratchathewi

In April, Ratchathewi, Thailand, experiences a striking transition into the heat of the year, with temperatures showcasing a notable rise. The month welcomes visitors with a minimum of 21°C (70°F), while the average hovers comfortably at 30°C (87°F), creating an inviting atmosphere for outdoor explorations. By midday, temperatures peak at 38°C (100°F), making it the hottest month so far. This upward trend from the previous months—where averages gradually shifted from a mild 27°C (81°F) in January to March’s 30°C (86°F)—signals the onset of summer, enticing travelers to embrace the vibrant local culture amidst the heat. Coupled with the increased humidity, April sets the stage for the sizzling days ahead, as the mercury continues to climb in the months to follow.

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

The chart illustrates April temperature patterns in Ratchathewi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ratchathewi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808285868686858584838280
Data source: Temperature data for Ratchathewi 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 Ratchathewi

April marks a significant shift in precipitation for Ratchathewi, Thailand, as it experiences a noticeable increase in rainfall, accumulating 107 mm (4.2 in) over 12 days. This jump follows the relatively dry months of January through March, where total rainfall hovered around 29 mm to 44 mm. As the region transitions deeper into the wet season, April's showers set the stage for the even heavier rains that May often brings, typically reaching 142 mm (5.6 in) over 19 days. This pattern illustrates not only an escalation in precipitation but also a growing intensity of the monsoonal weather, highlighting April as a pivotal month in Ratchathewi's annual climate cycle.

April Precipitation Trends in Ratchathewi

The chart displays monthly precipitation patterns in Ratchathewi, 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 Ratchathewi, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2914441071421121591632452506124
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ratchathewi

In Ratchathewi, Thailand, April marks a notable shift in humidity levels, rising to a significant 70%. This increase is part of a progressive trend throughout the early months of the year, where humidity gradually climbs from 59% in January to 61% in March. April's surge signals the onset of the wet season, which continues with even higher averages in May (80%) and peaks in the summer months. This seasonal transition underscores the growing moisture in the air, suggesting that residents and visitors should prepare for the imminent tropical climate characterized by both warmth and humidity.

April Average Humidity in Ratchathewi

This chart illustrates the average monthly humidity levels in Ratchathewi, 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 Ratchathewi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%58%61%70%80%85%86%88%87%83%78%70%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ratchathewi

In April, Ratchathewi, Thailand, experiences an extreme UV Index of 13, just shy of the highest levels seen in the preceding months. With a burn time of only 10 minutes, residents and visitors alike should prioritize sun safety. This trend of increasing UV intensity continues from the previous months, where February and March reached peaks of 12 and 14 respectively. As we move further into the year, the UV Index remains consistently high, underscoring the importance of protecting your skin against harmful rays not just in April, but throughout the summer months. To learn more about the UV Index and stay informed, visit Ratchathewi UV Index.

Maximum UV Index Levels in Ratchathewi for April

The chart shows the monthly maximum UV Index (UVI) for Ratchathewi 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 Ratchathewi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1012141314131414131298
Data source: Ratchathewi 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 Ratchathewi

April brings a delightful abundance of sunshine to Ratchathewi, Thailand, with 322 hours of radiant daylight. This follows March's peak at 336 hours, reflecting a natural ebb and flow in the region's climatic rhythm. As spring unfolds, sunshine levels exhibit only a slight dip from the previous month, continuing a trend of increasing brightness that characterizes the first quarter of the year. The golden rays of April not only illuminate the bustling streets and vibrant culture but also serve as a precursor to the slightly less sunny days of May and June, which maintain a respectable 321 and 302 hours, respectively. Overall, the gradual decline into the mid-year months suggests a warmth that lingers, ensuring April remains a sun-kissed delight in the heart of Thailand.

Monthly Sunshine Duration in Ratchathewi: April Highlighted

The April sunshine duration represents the total number of hours Ratchathewi 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h299h336h322h321h302h290h280h268h287h294h316h
Data source: Ratchathewi April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ratchathewi During April

April in Ratchathewi, Thailand, brings a notable drop in the probability of sunny weather, with only an 18% chance of sunshine. This contrasts sharply with the preceding months, where January and February boast significantly higher chances of sun at 58% and 76%, respectively. After a fluctuating March at 56%, the sunny outlook takes a downturn entering April, marking the start of a trend that continues through the following months, with May at 33%, June at 17%, and a dismal 11% in July. This seasonal shift highlights a transition to the wet season, suggesting that visitors should prepare for more overcast days and potential rain as the month progresses.

Percentage of Sunny Days in April in Ratchathewi

The chart illustrates the percentage of sunny days in Ratchathewi 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 Ratchathewi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%76%57%18%33%17%11%9%10%14%29%63%
Data source: Ratchathewi April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ratchathewi in April

In Ratchathewi, Thailand, April enjoys a delightful 12 hours of daylight, mirroring the preceding month of March. This consistent daylight duration heralds the arrival of warmer days, aligning with the region's transition into the hotter months. Following April, the daylight hours remain stable throughout May to August, maintaining an inviting atmosphere perfect for outdoor activities. As the year progresses, daylight begins to taper off in October, returning to 11 hours per day in the cooler months of November and December, creating a rhythmic cycle of light that beautifully shapes the Thai climate.

Average Daylight Hours in Ratchathewi for April

The chart illustrates the variation in daylight duration in Ratchathewi 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 40m12h 2m12h 25m12h 45m12h 54m12h 49m12h 33m12h 11m11h 48m11h 28m11h 19m
Data source: Ratchathewi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Ratchathewi

In April, Ratchathewi experiences a slight dip in average wind speeds, with a gentle breeze measuring 1.9 m/s (4 mph). This reduction marks a shift from the increasing winds of March, where speeds reached 3.0 m/s (7 mph). As the hot season progresses, May brings a return to calmer breezes averaging 2.4 m/s (5 mph), resembling the warmer conditions of earlier months. Overall, the trend reveals that while April may offer less wind, it sets the stage for the balanced conditions of late spring, maintaining Ratchathewi’s tropical charm amidst the fluctuating air currents.

Average April Wind Speed in Ratchathewi

The chart displays monthly wind speed patterns in Ratchathewi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.43.01.9 m/s2.43.02.72.62.02.02.22.6
Data source: Ratchathewi April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Ratchathewi Compares to Other Months

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

When comparing the weather in April and January, a marked difference in temperature and precipitation is evident. April typically sees higher temperatures, with a minimum of 21°C (70°F), averaging around 30°C (87°F), and soaring to a maximum of 38°C (100°F). In contrast, January's temperatures are cooler, with a minimum of 16°C (61°F), an average of 27°C (81°F), and a maximum of 35°C (94°F). Additionally, April experiences significantly more rainfall, totaling 107 mm (4.2 in) across 12 days, while January only receives 29 mm (1.1 in) over just 3 days. Humidity levels are also higher in April at 70%, compared to 59% in January. For more details on January's weather patterns, you can refer to Ratchathewi weather in January.

April weather is typically warmer and more humid compared to February. With minimum temperatures averaging 21°C (70°F) and reaching up to 38°C (100°F), April experiences a higher average of 30°C (87°F) and significantly more rainfall at 107 mm (4.2 in) over 12 days. In contrast, February offers slightly cooler temperatures, with a minimum of 19°C (66°F) and a maximum of 35°C (96°F), along with much less precipitation, only 14 mm (0.5 in) over just 3 days. The humidity in April is also noticeably higher at 70%, compared to February's 58%. For those considering a trip, you can find more details here: Ratchathewi weather in February.

In March, the weather showcased slightly cooler temperatures with minimums around 22°C (72°F) and maximums reaching 37°C (99°F), averaging 30°C (86°F). There was considerably less precipitation, totaling 44 mm (1.7 in) over 5 days, and the humidity was lower at 61%. In contrast, April saw a minimal increase in temperature, maintaining an average of 30°C (87°F) but with a higher maximum of 38°C (100°F) and a minimum of 21°C (70°F). The month also brought significantly more rainfall, accumulating 107 mm (4.2 in) over 12 days, resulting in a higher humidity level of 70%. For more detailed insights, you can check Ratchathewi weather in March.

In comparing the weather between April and May, we observe a slight increase in temperatures and humidity levels. April experiences minimum temperatures of 21°C (70°F) and maximums reaching up to 38°C (100°F), while May sees a rise in the minimum to 23°C (74°F) and a maximum of 40°C (103°F). Additionally, precipitation in May is higher, accumulating 142 mm (5.6 in) over 19 days compared to April's 107 mm (4.2 in) over 12 days. This trend is accompanied by an increase in humidity, which rises from 70% in April to 80% in May. For more details, you can visit Ratchathewi weather in May.

In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 38°C (100°F), with an average temperature of 30°C (87°F). The month sees around 107 mm (4.2 in) of precipitation over approximately 12 days, accompanied by a humidity level of 70%. In contrast, June experiences slightly higher minimum temperatures at 25°C (78°F) and a similar average temperature of 30°C (86°F), with a maximum of 37°C (99°F). Rainfall increases to 112 mm (4.4 in) but occurs over a longer span of 22 days, leading to higher humidity levels of 85%. This results in June feeling noticeably more humid and wet compared to April. For more detailed information, you can check out Ratchathewi weather in June.

April and July exhibit distinct weather patterns, highlighting the transition from early spring to mid-summer. In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 38°C (100°F), with an average of 30°C (87°F). The month experiences considerable precipitation, totaling 107 mm (4.2 in) over 12 days and a humidity level of 70%. In contrast, July sees a slight increase in minimum temperature, starting at 25°C (78°F) with an average of 29°C (85°F) and a maximum of 37°C (99°F). July is notably wetter, receiving 159 mm (6.2 in) of rain across 26 days, with humidity levels rising to 86%. For more specific insights on the weather in July, you can check Ratchathewi weather in July.

When comparing the weather in April and August, several key differences emerge. April tends to be slightly hotter with average temperatures reaching around 30°C (87°F), peaking at 38°C (100°F), while August has a milder average of 29°C (85°F) and a maximum of 37°C (99°F). However, August experiences significantly more rainfall, accumulating 163 mm (6.4 in) over 23 days compared to April’s 107 mm (4.2 in) over 12 days. Additionally, humidity levels are higher in August at 88%, compared to 70% in April, making the latter feel more comfortable despite the higher temperatures. For a detailed look at August weather specifically, you can visit Ratchathewi weather in August.

April and September present contrasting weather patterns. In April, temperatures are generally warm, with a minimum of 21°C (70°F) and an average high reaching 38°C (100°F), but this month experiences lower precipitation at 107 mm (4.2 in) over 12 days and humidity around 70%. In comparison, September is slightly cooler, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F). However, it is significantly wetter, with rainfall totaling 245 mm (9.6 in) over 24 days and humidity increasing to 87%. For more specific details about conditions in September, you can visit Ratchathewi weather in September.

In April, the weather is characterized by warmer temperatures, with an average high of 30°C (87°F) and a maximum reaching up to 38°C (100°F). However, April also brings about significant rainfall, totaling 107 mm (4.2 inches) over approximately 12 days, alongside a humidity level of 70%.

On the other hand, October experiences slightly cooler temperatures with an average high of 29°C (84°F) and a maximum of 35°C (96°F). However, it is notably wetter, with 250 mm (9.9 inches) of rain spread over 21 days, resulting in higher humidity levels at 83%. For more specific details on October's climate, you can check out Ratchathewi weather in October.

When comparing the weather in April and November, April tends to be hotter, with average temperatures reaching 30°C (87°F) and maximums soaring up to 38°C (100°F). It also experiences higher precipitation, averaging 107 mm (4.2 in) over 12 days, alongside a relative humidity of 70%. In contrast, November offers a milder climate with an average temperature of 28°C (83°F), maxing out at 35°C (95°F). The month sees less rainfall, totaling 61 mm (2.4 in) over 9 days, and higher humidity at 78%. For more details on November weather, you can explore Ratchathewi weather in November.

In April, temperatures soar with a minimum of 21°C (70°F) and an average high reaching up to 38°C (100°F), making it one of the hottest months. The month also sees notable rainfall, totaling 107 mm (4.2 in) over approximately 12 days, contributing to high humidity levels of 70%. In contrast, December presents a much milder climate, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F) and an average of 27°C (80°F). Rainfall is significantly reduced, with only 24 mm (0.9 in) falling over just 2 days, while humidity remains steady at 70%. For more details, you can check Ratchathewi weather in December.

Compare Ratchathewi's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Ratchathewi

April in Ratchathewi stands out with its intense heat and significant humidity, making it not only one of the hottest months of the year but also a time when showers start to make a noticeable appearance. The average temperature hovers around a balmy 30°C, reaching highs that can peak at 38°C, while the 107 mm of rainfall over approximately 12 days hints at the shift towards the wet season. This blend of heat and moisture distinctly sets April apart from the preceding months, creating a vibrant atmosphere that invigorates the city. For a detailed look at the weather patterns throughout the year, visit Ratchathewi Climate.