April Weather in Sylhet, Bangladesh

Last updated: August 21, 2025

Experience the vibrant April weather of Sylhet, Bangladesh, where the temperatures range from a comfortable 17°C (63°F) at night to a sweltering 35°C (96°F) during the day, with an average of 25°C (78°F). This month, expect to encounter significant rainfall, with a total precipitation of 503 mm (19.8 in) spread across 19 days—perfect for nourishing the region's lush landscapes. The humidity level sits at a moderate 47%, creating a refreshing yet warm atmosphere ideal for both residents and visitors alike. Embrace the season as Sylhet transforms into a green paradise under the April skies.

April Temperature in Sylhet

In April, Sylhet, Bangladesh begins to showcase the warmth of spring, with temperatures rising noticeably. The month marks a shift, as the minimum temperature climbs to a comfortable 17°C (63°F), setting the stage for more pleasant days. With an average temperature settling at 25°C (78°F) and a maximum reaching up to 35°C (96°F), April transitions into the hotter months with increasing humidity. This pattern hints at an approaching summer, inviting residents and visitors alike to enjoy outdoor activities in the blossoming landscape. As the days lengthen and the sun shines stronger, April serves as a vibrant prelude to Sylhet's tropical climate.

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

The chart illustrates April temperature patterns in Sylhet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sylhet, 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).
JanFebMarAprMayJunJulAugSepOctNovDec636773778082828383807365
Data source: Temperature data for Sylhet generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Sylhet

April marks a dramatic transition in Sylhet, Bangladesh, where precipitation peaks at an astonishing 503 mm (19.8 in), making it one of the wettest months of the year. With rainfall distributed over 19 days, the landscape transforms amidst the lush greenery that thrives in the abundant moisture. This surge follows a relatively dry early year, with January and February receiving only 6 mm (0.2 in) and 28 mm (1.1 in), respectively. The rain escalates significantly from March to April, jumping from 117 mm (4.6 in) to over 500 mm, foreshadowing the even heavier rains that lie ahead in May and June. This pattern highlights a clear seasonal progression, underscoring Sylhet's shift into its anticipated monsoon period where the region's vibrant ecosystem flourishes.

April Precipitation Trends in Sylhet

The chart displays monthly precipitation patterns in Sylhet, 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 Sylhet, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6291175035208168957494662472040
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Sylhet

April in Sylhet, Bangladesh presents a notable shift in humidity levels, dipping to 47%, marking the lowest point since January. This decline is a refreshing contrast to the rising humidity witnessed in the preceding months, where March recorded 53%. As the region transitions into the heavier humidity of May at 79%, April acts as a brief interlude before the onset of the sweltering months ahead. The consistent upward trend from April through to August, with levels climbing to an intense 90% or more, underscores the damp, tropical climate typical of this region. This seasonal fluctuation highlights how April serves as a crucial transitional month, balancing lower humidity in preparation for the sultry summer.

April Average Humidity in Sylhet

This chart illustrates the average monthly humidity levels in Sylhet, 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 Sylhet is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%69%53%47%79%86%91%90%89%89%88%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sylhet

In April, Sylhet experiences a notable rise in UV radiation, with an impressive UV Index of 10, falling under the very high exposure category. This increase follows a progression from March, where the index reached 9, highlighting the shifting intensity of sunlight as summer approaches. With a quick burn time of just 15 minutes, it’s essential for residents and visitors to take protective measures against potential skin damage. As the months pass, the UV Index continues to escalate, peaking at 14 in July, signifying an ongoing trend of increasing solar exposure. For those planning outdoor activities, understanding the UV Index is crucial, and you can find detailed information at Sylhet UV Index.

Maximum UV Index Levels in Sylhet for April

The chart shows the monthly maximum UV Index (UVI) for Sylhet 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 Sylhet typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6791013131413131086
Data source: Sylhet 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 Sylhet

In April, Sylhet shines with a delightful 308 hours of sunshine, making it one of the sunniest months of the year, though slightly below the peak of March at 333 hours. This warm glow sets the stage for May, which continues to bask in the sun with just a tad more brilliance at 311 hours. As the region transitions from the chill of early winter, the trend clearly displays a gradual build-up of sunny days from January's 245 hours to the dynamic spring months, showcasing Sylhet’s vibrant climate. However, the decline begins in June, with a drop to 253 hours, hinting at the impending monsoon. Overall, April serves as a beautiful reminder of the region's lively alternation between sunshine and rain throughout the year.

Monthly Sunshine Duration in Sylhet: April Highlighted

The April sunshine duration represents the total number of hours Sylhet 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.
JanFebMarAprMayJunJulAugSepOctNovDec245h288h333h308h311h253h222h247h262h301h296h296h
Data source: Sylhet April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sylhet During April

As April approaches in Sylhet, Bangladesh, the likelihood of sunny weather takes a noticeable dip, dropping to 68% from the robust 75% of March. This decline signals the onset of pre-monsoon conditions, where the sunny days are fewer and the clouds start to gather. The transition is evident as temperatures rise, but sunshine becomes less reliable, paving the way for a more humid environment as May looms with only a 40% chance of sun. This trend highlights the region's shift from the bright winter months, where January and February bask in 87% and 85% sunshine, respectively, to the impending rainy season that relentlessly approaches in the summer months.

Percentage of Sunny Days in April in Sylhet

The chart illustrates the percentage of sunny days in Sylhet 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 Sylhet experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%75%68%40%7%4%5%19%58%82%67%
Data source: Sylhet April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sylhet in April

April in Sylhet, Bangladesh, marks a notable transition in daylight duration as it maintains a consistent 12 hours of daylight, mirroring the trend set in March. This plateau follows a gradual increase from 10 hours in January and 11 hours in February, showcasing the region’s gradual migration toward longer days as the year progresses. The burgeoning daylight heralds the approach of summer, as May brings an extension to 13 hours, emphasizing the vibrant and lively atmosphere of the season. As the days lengthen and the warmth increases, April serves as a pivotal point in Sylhet's yearly cycle, bridging the cooler months with the sun-soaked days ahead.

Average Daylight Hours in Sylhet for April

The chart illustrates the variation in daylight duration in Sylhet throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 45m11h 18m12h12h 44m13h 20m13h 38m13h 29m12h 57m12h 16m11h 32m10h 55m10h 36m
Data source: Sylhet daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Sylhet

April in Sylhet, Bangladesh, brings a gentle breeze with an average wind speed of 1.5 m/s (3 mph), a slight dip from the progressive increase seen in the previous months. This month, the winds are reminiscent of the calmness of January, February, and May, establishing a tranquil atmosphere as the region transitions into the sweltering heat of the coming summer. Notably, March presents the standout moment with 1.8 m/s (4 mph), introducing a hint of invigorating energy that the April winds now mellow. As the calendar shifts toward June, the winds settle back to their usual 1.4 m/s, consistent and stable, and reflective of Sylhet's overall climatic rhythm. This pattern underscores a serene yet oscillating embrace of the elements, where the winds whisper softly, creating a perfect backdrop for reflection and anticipation of the lush greenery that will soon flourish.

Average April Wind Speed in Sylhet

The chart displays monthly wind speed patterns in Sylhet, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.51.81.5 m/s1.41.41.41.41.31.31.41.5
Data source: Sylhet April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Sylhet Compares to Other Months

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

April and January present contrasting weather experiences. In April, the temperatures soar with a minimum of 17°C (63°F) and an average of 25°C (78°F), peaking at a warm 35°C (96°F). The month is characterized by significant rainfall, with 503 mm (19.8 in) spread over 19 days, resulting in a relatively low humidity of 47%. In stark contrast, January offers cooler temperatures, ranging from a minimum of 6°C (44°F) to an average of 17°C (63°F), and a maximum of 29°C (84°F). Precipitation during this month is minimal, with only 6 mm (0.2 in) occurring over just one day, while humidity is notably higher at 76%. For a closer look at January weather, check out Sylhet weather in January.

April and February present distinct differences in weather conditions. While February enjoys milder temperatures with a minimum of 9°C (49°F) and an average of 19°C (67°F), April heats up significantly, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 35°C (96°F). Additionally, April experiences much higher precipitation levels, with 503 mm (19.8 in) recorded over 19 days, compared to February's modest 28 mm (1.1 in) over just 3 days. The humidity is also notably higher in February at 69%, while April sees a lower humidity level of 47%. For a more detailed look at February weather, you can refer to Sylhet weather in February.

In comparing the weather between March and April, April experiences significantly higher temperatures, with minimums of 17°C (63°F) compared to March's 12°C (54°F), and averages reaching 25°C (78°F) against March's 23°C (74°F). However, April also brings considerable rainfall, totaling 503 mm (19.8 in) over 19 days, which is a sharp increase from March's 117 mm (4.6 in) across just 9 days. Additionally, April's humidity stands at 47%, slightly lower than March's 53%, indicating more comfortable conditions despite the increased heat. For a detailed look at March's climate, you can visit Sylhet weather in March.

April and May both offer warm temperatures, but May tends to be slightly warmer overall. In April, the minimum temperature is 17°C (63°F) with an average of 25°C (78°F) and a maximum reaching 35°C (96°F). In contrast, May starts off warmer with a minimum of 20°C (68°F) and averages around 27°C (80°F), peaking at 36°C (98°F). However, May also sees an increase in precipitation, totaling 520 mm (20.5 in) over 27 days, compared to April's 503 mm (19.8 in) over 19 days. Additionally, the humidity rises significantly in May, reaching 79%, compared to April's 47%. For more details on the weather patterns, check Sylhet weather in May.

April and June weather in Sylhet present notable contrasts, particularly in humidity and precipitation levels. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). The month sees significant rainfall, totaling 503 mm (19.8 in) over 19 days, accompanied by relatively low humidity at 47%. In contrast, June experiences higher temperatures, with a minimum of 23°C (73°F) and an average of 28°C (82°F), while still peaking at 35°C (96°F). However, the month is much wetter, racking up 816 mm (32.1 in) of rainfall across 29 days, and the humidity skyrockets to a much-dampening 86%. For more details on June weather specifics, visit Sylhet weather in June.

April and July exhibit significant differences in weather patterns. In April, temperatures range from a mild 17°C (63°F) to a warm 35°C (96°F), with an average temperature of 25°C (78°F) and a moderate humidity level of 47%. However, rainfall is relatively high, with 503 mm (19.8 in) of precipitation occurring over 19 days.

In stark contrast, July brings even warmer temperatures, with a minimum of 23°C (73°F) and a maximum of 37°C (99°F), averaging 28°C (83°F). The month sees a dramatic jump in precipitation, totaling 895 mm (35.2 in) across 30 days, while humidity soars to 91%. Overall, July's weather is characterized by higher temperatures and significantly increased humidity and rainfall compared to April. For more detailed information, you can check Sylhet weather in July.

April and August exhibit distinct weather patterns, showcasing the transition from the cooler, drier days of spring to the humid and rainy conditions of late summer. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). The month experiences significant rainfall, totaling 503 mm (19.8 in) over 19 days, and maintains a humidity level of 47%. In contrast, August sees a rise in temperatures, with minimums at 25°C (76°F) and maximums reaching up to 37°C (99°F), while the average temperature settles at 28°C (84°F). Rainfall is even more pronounced in August, accumulating to 749 mm (29.5 in) over 30 days and accompanied by a high humidity level of 90%. For more detailed information on August conditions, visit Sylhet weather in August.

April and September present distinctly different weather characteristics. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). This month experiences a significant amount of rainfall, totaling 503 mm (19.8 in) over 19 days, with a moderate humidity level of 47%.

In contrast, September sees warmer temperatures, with a minimum of 24°C (75°F) and a maximum of 37°C (98°F), averaging at 28°C (83°F). Although the total precipitation is slightly lower at 466 mm (18.3 in) across 26 days, the humidity is noticeably higher at 89%. The combination of elevated temperatures and humidity in September creates a more oppressive atmosphere compared to the relatively mild conditions in April. For more detailed weather insights, you can refer to Sylhet weather in September.

In April, the weather in Sylhet features a warm range of temperatures with a minimum of 17°C (63°F) and a maximum of 35°C (96°F), averaging around 25°C (78°F). The month is characterized by significant rainfall, totaling 503 mm (19.8 in) across 19 days, and a humidity level of 47%. In contrast, October presents slightly higher temperatures, with a minimum of 18°C (64°F) and a maximum of 36°C (98°F), averaging 27°C (80°F). However, the month sees considerably less rainfall at 247 mm (9.7 in) over 16 days, accompanied by higher humidity at 89%. For more details, you can check the Sylhet weather in October.

April and November present contrasting weather conditions. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). This month is characterized by high precipitation, totaling 503 mm (19.8 in) over 19 days, alongside lower humidity levels of 47%. In sharp contrast, November sees cooler temperatures, with a minimum of 14°C (57°F), an average of 23°C (73°F), and a maximum of 32°C (89°F). Precipitation is significantly lower at just 20 mm (0.8 in) across only 3 days, but humidity rises markedly to 88%. For more detailed weather insights, you can visit Sylhet weather in November.

April and December present stark contrasts in weather. In April, temperatures soar with a minimum of 17°C (63°F) and can reach highs of 35°C (96°F), while the average sits at a warm 25°C (78°F). This month also sees substantial rainfall, with 503 mm (19.8 in) over 19 days and humidity levels at 47%. In contrast, December experiences cooler weather, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), averaging 19°C (66°F). Rainfall drops significantly to just 40 mm (1.6 in) across only 2 days, while humidity rises sharply to 86%. For a more detailed view of December's climate in Sylhet, check out Sylhet weather in December.

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Conclusion: What to Expect From April Weather in Sylhet

As April unfolds in Sylhet, the weather transitions into a warm embrace, with maximum temperatures soaring to an impressive 35°C (96°F) while the average settles at a comfortable 25°C (78°F). This month marks a noticeable shift from the cooler months, with humidity levels maintaining around 47% and a significant increase in precipitation, as rain graces the region for nearly two-thirds of the month with 19 rainy days totaling 503 mm (19.8 in). This blend of warmth and rain heralds the arrival of the monsoon season, making April a pivotal month for the lush landscapes of Sylhet. Discover more fascinating insights about the region's seasonal variations at Sylhet Climate.