Last updated: August 27, 2025
April in Irkutsk, Russian Federation ushers in a dynamic transition from the cold grip of winter to the warmth of spring. As temperatures rise, the month sees a maximum of 28°C (82°F), an average of 4°C (39°F), and a chilling minimum of -11°C (13°F). With 19 mm (0.8 in) of precipitation over 6 days, residents experience a refreshing burst of spring rain, contributing to a moderate humidity level of 73%. This blend of warmth and moisture revitalizes the landscape, making April a vibrant month for both nature and the people of Irkutsk.
As winter recedes, Irkutsk’s temperatures in April begin to showcase a remarkable transformation. The minimum temperature rises to a brisk -11°C (13°F), marking a noticeable shift from the extreme cold of earlier months. The average temperature climbs to a refreshing 4°C (39°F), inviting both residents and nature to emerge from hibernation. As the days transition, the city can even experience highs reaching up to 28°C (82°F), a striking contrast to the bone-chilling depths of winter. April not only heralds warmer days but also hints at the lush greenery that follows, making it a pivotal month in Irkutsk’s seasonal cycle.
In April, Irkutsk experiences a noticeable increase in precipitation, receiving 19 mm (0.8 in) over six days—the highest monthly total since January. This marks a gradual transition from the drier winter months, as precipitation amounts rise steadily from 12 mm in January to the late spring surge in May, which boasts nearly twice the rainfall at 48 mm (1.9 in). With each passing month, the region shifts from the cold grip of winter to the more moist conditions of spring, suggesting a refreshing change in the climatic rhythm. The uptick in rainy days during April hints at nature awakening, preparing Irkutsk for the lush growth and vibrant landscapes that follow in May and June. This pattern underlines the significance of April as a crucial bridge between the harsh winter and the lush onset of spring in Siberia.
In April, the humidity in Irkutsk experiences a noticeable drop, settling at 73% after a gradual decline from the peak of 94% in January. This month marks a transition as the lingering chill of winter gives way to the budding warmth of spring, leading to a more comfortable atmosphere. Following the consistent decrease in humidity through the early months of the year, April’s levels hint at the onset of dryer conditions, paving the way for May, which sees even lower humidity at 67%. As the year progresses, the humidity continues to fluctuate, with summer months like July and August experiencing a mild rebound, suggesting a seasonal rhythm that balances moisture levels throughout the year.
As April arrives in Irkutsk, the UV Index reaches 5, categorizing exposure as moderate. This marks an increase from the preceding months, where the index was significantly lower, with 1 in January and 2 in February. With the days getting longer and sunnier, residents should be aware that the potential for sunburn exists after just 30 minutes of unprotected exposure. This trend of rising UV levels continues toward the summer months, peaking in June and July. As the sunlight intensifies, it becomes increasingly important for locals to prepare for outdoor activities. For more detailed information on the UV index throughout the year, visit Irkutsk UV Index.
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As winter melts into spring, April brings a notable surge of sunlight to Irkutsk, with a radiant 333 hours shining down, offering a promise of warmth after the long months of cold. This increase marks a significant transition from the 310 hours recorded in March, highlighting a consistent upward trend that continues into May, which boasts an impressive 358 hours. This month serves as a vital marker in the year, illustrating the gradual shift toward longer days and brighter skies, perfectly encapsulating the essence of springtime rejuvenation in this vibrant Russian city. With each advancing month, the embrace of summer becomes more palpable, making Irkutsk an inviting haven for those eager to bask in the sun's glow.
In Irkutsk, Russia, the likelihood of sunny weather experiences notable fluctuations throughout the year. April sees a chance of sunshine at 40%, a dip from the earlier peak of 48% in March but significantly higher than the dreary winter months. As spring unfolds, the sun's presence becomes more prominent compared to January's mere 17% and February's 29%. This signals a transition as the region moves toward warmer months, where May and June hover around the 29% to 39% range. Interestingly, October reemerges with a 53% likelihood of sunny days, hinting at the unpredictability of weather patterns in this diverse landscape. Overall, while April may not guarantee consistent sunlight, it marks a hopeful step toward brighter days ahead.
As April unfolds in Irkutsk, the daylight duration notably increases to 13 hours, marking a significant transition from the earlier months. This gradual elongation of daylight can be traced back to January, when residents enjoyed just 8 hours of sunlight, with a slow but steady rise to 9 hours in February and 11 hours by March. The arrival of spring not only brightens the landscape but also invigorates the community, setting the stage for the impending summer months where daylight will peak at an impressive 16 hours in June and July. With each passing month, the increasing light invigorates both nature and daily life, creating a vibrant atmosphere as Irkutsk sheds the winter cloak and embraces the warmth and energy of the longer days ahead.
In April, Irkutsk experiences a noticeable increase in wind speed, reaching an average of 2.9 m/s (7 mph), making it a refreshing transition from the calmer winter months. This upward trend of wind speed is a precursor to the more blustery days of May, which sees an even stronger gust at 3.2 m/s (7 mph). The data reveals a gradual rise from January's stillness to the vibrant spring breezes, suggesting a shift in the atmosphere as the region awakens from winter's grip. Interestingly, while summer brings a slight dip, with July's average wind speed falling to 2.3 m/s (5 mph), the overall trend showcases a dynamic interplay between seasons, each characterized by its unique gusty personality.
Weather in Irkutsk varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Irkutsk, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present starkly contrasting weather conditions. In April, temperatures can range from a chilly minimum of -11°C (13°F) to a much warmer maximum of 28°C (82°F), with an average temperature of 4°C (39°F). This month sees about 19 mm (0.8 in) of precipitation over 6 days and a humidity level of 73%. In contrast, January is significantly colder, characterized by a minimum temperature plummeting to -41°C (-41°F) and an average of -19°C (-1°F), with a maximum temperature of only -5°C (24°F). Precipitation is lower in January, totaling 12 mm (0.5 in) over just 4 days, coupled with a notably higher humidity of 94%. For more detailed information, you can check Irkutsk weather in January.
April weather in Irkutsk is significantly milder compared to February, showcasing a wider range of temperatures. While February experiences chilling lows of -40°C (-39°F) and an average temperature of -16°C (3°F), April sees temperatures ranging from a minimum of -11°C (13°F) to a pleasant average of 4°C (39°F) and can even reach a maximum of 28°C (82°F). Precipitation in April is slightly higher at 19 mm (0.8 in) over about 6 days, while February has a total of 11 mm (0.4 in) spread across just 4 days. Additionally, the humidity decreases in April to 73%, compared to February's higher level of 90%, making the latter feel much colder. For more detailed insights, you can check out Irkutsk weather in February.
Comparing the weather in April to that of March reveals a notable shift in conditions. April experiences significantly milder temperatures, with a minimum of -11°C (13°F) and an average of 4°C (39°F), compared to March's much colder minimum of -30°C (-22°F) and an average of -5°C (23°F). The maximum temperature in April can reach a pleasant 28°C (82°F), while March only warms up to a maximum of 12°C (54°F). Additionally, April sees slightly more precipitation at 19 mm (0.8 in) over 6 days, compared to March's 16 mm (0.6 in) across 4 days. Humidity is also slightly lower in April at 73%, compared to March's 81%. For a deeper look into March weather specifics, check out Irkutsk weather in March.
April and May display distinct differences in weather patterns. April tends to be cooler, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 28°C (82°F), averaging around 4°C (39°F). The month sees a total precipitation of 19 mm (0.8 in) over 6 days, accompanied by a relatively high humidity of 73%. In contrast, May warms up, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 31°C (89°F) and an average temperature of 10°C (50°F). However, May experiences increased precipitation at 48 mm (1.9 in) across 11 days, though humidity is slightly lower at 67%. For a detailed look at the weather conditions in May, you can visit Irkutsk weather in May.
April and June present notable contrasts in weather conditions. April experiences cooler temperatures, with a minimum dropping to -11°C (13°F) and an average of just 4°C (39°F), compared to June's milder minimum of 2°C (37°F) and an average of 16°C (61°F). Additionally, June sees warmer maximum temperatures reaching up to 33°C (92°F), whereas April's highest temperature peaks at 28°C (82°F). Precipitation is also higher in June, totaling 47 mm (1.8 in) over approximately 10 days, compared to April's 19 mm (0.8 in) over 6 days, and this month enjoys a slightly lower humidity level of 64% compared to April's 73%. For a more detailed look at June weather conditions, visit Irkutsk weather in June.
In comparing the weather between April and July, one can observe significant differences. April experiences a broader temperature range, with minimums dropping as low as -11°C (13°F) and highs reaching up to 28°C (82°F), averaging around 4°C (39°F). Conversely, July offers milder conditions, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 32°C (90°F), and an average of 19°C (66°F). Precipitation also varies considerably, with April seeing only 19 mm (0.8 in) over 6 days, while July is considerably wetter, recording 96 mm (3.8 in) across 12 days. Despite the increased rainfall, humidity in July remains relatively similar at 71%, slightly lower than April's 73%. For detailed insights into July's weather patterns, please refer to Irkutsk weather in July.
April and August in Irkutsk present contrasting weather experiences. In April, temperatures can range from a chilly minimum of -11°C (13°F) to a pleasant maximum of 28°C (82°F), with an average of 4°C (39°F). The month sees relatively low precipitation, totaling 19 mm (0.8 in) over about 6 days, while humidity remains steady at 73%. In contrast, August experiences milder temperatures, with minimums around 4°C (39°F) and maximums reaching up to 30°C (86°F), resulting in an average of 17°C (63°F). However, this month is considerably wetter, recording 88 mm (3.5 in) of rainfall across 12 days, while still maintaining the same humidity level of 73%. For more detailed information, you can check Irkutsk weather in August.
April and September present distinct weather patterns, reflecting the transition from winter to autumn. In April, temperatures range from a chilly minimum of -11°C (13°F) to a pleasant maximum of 28°C (82°F), with an average of 4°C (39°F). The month sees relatively low precipitation at 19 mm (0.8 in) over about 6 days and a humidity level of 73%. In contrast, September experiences milder temperatures, with a minimum of -1°C (31°F) and a maximum of 26°C (79°F), averaging around 11°C (52°F). However, it is wetter, with 75 mm (2.9 in) of precipitation across 10 days and higher humidity at 84%. For more detailed insights about September weather, you can visit Irkutsk weather in September.
April and October exhibit notably similar weather patterns, yet each month carries its unique character. April sees a wider temperature range, with lows of -11°C (13°F) and highs reaching up to 28°C (82°F), while October's temperatures are slightly milder, fluctuating between -8°C (18°F) and a maximum of 22°C (71°F). Precipitation is more abundant in October, with 25 mm (1.0 in) compared to April's 19 mm (0.8 in), although both months experience rain on about six days. Humidity levels also rise in October to 84%, higher than April's 73%. For more detailed information on the specific conditions, you can check Irkutsk weather in October.
April and November present striking contrasts in weather. In April, temperatures range from a chilly minimum of -11°C (13°F) to a warm maximum of 28°C (82°F), with an average of 4°C (39°F). The month sees about 19 mm (0.8 in) of precipitation over 6 days, and humidity levels hover around 73%. In contrast, November is significantly colder with temperatures dipping to a minimum of -28°C (-18°F) and averaging -7°C (20°F), only rising to a maximum of 10°C (50°F). Precipitation is lower in November, totaling 13 mm (0.5 in) over just 4 days, and the humidity is markedly higher at 90%. For a more detailed look at November weather in this region, you can check Irkutsk weather in November.
April and December in Irkutsk present starkly contrasting weather conditions. In April, temperatures can swing from a chilly -11°C (13°F) to a warmer 28°C (82°F), with an average of 4°C (39°F), while December sees much harsher cold, with a minimum of -39°C (-38°F), an average of -17°C (2°F), and a maximum of just 3°C (38°F). Both months receive similar levels of precipitation, approximately 19 mm (0.8 in) in April and 19 mm (0.7 in) in December, but the distribution differs slightly, with April experiencing rain over 6 days compared to December's 5 days. Notably, humidity levels are significantly higher in December at 96%, compared to April's 73%. For a more detailed look at December's chilly climate, check out Irkutsk weather in December.
As April unfolds in Irkutsk, the transition from winter to spring is palpable, with temperatures beginning to rise, offering a refreshing departure from the frigid chill of earlier months. While the average temperature remains cool, the occasional surge up to a warm 28°C (82°F) signals the arrival of blossoming possibilities, contrasting sharply with the icy grip of previous months. With only 19 mm of precipitation over about six days, April is relatively drier, allowing for longer glimpses of sunshine amidst the lingering chill. However, the humidity at 73% serves as a reminder that the region is still shaking off the winter frost, creating a unique interplay between warmth and refreshment. For a deeper understanding of how Irkutsk’s climate shapes this beautiful region, visit Irkutsk Climate.