Last updated: August 21, 2025
December in Rasht, Iran showcases a diverse climate that transitions from crisp mornings to milder afternoons. Temperatures fluctuate significantly, with maximums reaching 26°C (80°F), while the average settles at 10°C (50°F), dipping to a chilly -3°C (26°F) overnight. This month witnesses considerable rainfall, accumulating around 126 mm (5.0 in) across approximately 12 days, creating a humid atmosphere with an average humidity level of 72%. Such weather patterns make December a unique time for both locals and visitors to experience the rich, lush landscapes of Rasht, accentuated by the frequent showers and cool breezes.
In December, Rasht experiences a noticeable drop in temperatures, with minimums dipping to -3°C (26°F), while the average hovers around 10°C (50°F). This month marks a transition into the chillier season, yet the maximum temperature can still reach a mild 26°C (80°F), showcasing the region's variability even in winter. As the year closes, Rasht's climate reflects a shift from the previous mild autumn, reinforcing the trend of cooler temperatures that progressively lead into the colder months of January and February. Despite the winter chill, December’s temperatures remain relatively moderate compared to other regions, allowing for a unique blend of crisp air and occasional warmth.
In December, Rasht experiences a notable precipitation of 126 mm (5.0 in), maintaining its wet reputation as one of Iran's rainiest cities. This month marks a slight decrease from the preceding months, particularly November, which recorded an impressive 246 mm (9.7 in). Interestingly, December's rainfall occurs over 12 days, striking a balance between moisture and accessibility, contrasting sharply with the 15 precipitation days seen in both October and November. As the year closes, the trend reflects a transition from the peak rainy season towards the colder, quieter winter months, yet Rasht remains reliably draped in a lush green landscape, nourished by its December showers.
In Rasht, Iran, December ushers in a humidity level of 72%, reflecting a gradual decrease from the wetter months of late autumn. The city experiences its highest humidity earlier in the year, with January and February maintaining a consistent 75%. As spring approaches, humidity slightly dips to 72% in March, further declining to 65% during the warmer months from April to June. The most noticeable drop occurs in August, where humidity falls to 49%, offering a drier respite before the September uptick to 58%. By October and November, humidity climbs back to a notable 73% and 75%, respectively, setting the stage for December’s moderate levels, which hint at the dynamic seasonal shifts typical of this lush region.
In Rasht, Iran, the UV Index shows a clear downward trend as December rolls in, marked by a moderate level of 3. This indicates a decrease in sun intensity compared to the high and very high levels seen during the summer months, where indices peaked at 11 in May. As the year progresses, residents can enjoy longer safe exposure times—up to 30 minutes in December—without significant risk of sunburn. While the UV Index in winter months like December remains moderate, it’s still wise to remain aware of the sun's potential effects. For detailed insights on UV levels throughout the year, visit Rasht UV Index.
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As winter settles in, December in Rasht, Iran, continues to bask in a generous embrace of 249 hours of sunshine, offering a delightful contrast to the colder months. This marks a gradual decrease from the vibrant sunshine of November, which boasted 232 hours, yet still showcases Rasht's relatively bright winter days. The trend of sunshine hours indicates a peak in the spring, with May and June shining brightly with 377 and 391 hours respectively, before a slight decline as the seasons shift. December's cheerful rays are a reminder that even in the heart of winter, the sun still plays a key role in Rasht’s charm, creating a warm ambiance that lifts spirits during the chilly days.
In December, Rasht, Iran enjoys a 60% chance of sunny weather, marking a notable increase compared to the gloomier months leading up to it. This trend becomes particularly interesting when looking at the preceding months; after a dip in October and November, which saw only 29% and 48% sunny days respectively, December brings a refreshing boost in sunshine. With a percentage of sunny days that rivals January's impressive 64%, December stands out as a transitional period, offering a brighter outlook before the shift into the chillier depths of winter. Overall, while Rasht experiences fluctuations throughout the year, December represents an optimistic halfway point, blending cooler temperatures with the welcome warmth of the sun.
In Rasht, Iran, the rhythm of daylight shifts dramatically throughout the year, revealing fascinating patterns in its sunlight hours. The year begins with a modest 9 hours of daylight in January, gradually increasing to a vibrant 14 hours by mid-summer in May and June. This peak is sustained throughout July before a gentle descent begins, with daylight decreasing back to 13 hours in August and gradually tapering off to 9 hours once again by December. This cyclical dance highlights a clear trend of increasing daylight as spring approaches, reaching its zenith in summer, followed by the seasonal retreat as winter sets in. Such fluctuations provide a beautiful testament to the changing seasons in this lush landscape, making every month a unique experience of natural light.
As December settles in Rasht, Iran, the wind begins to pick up slightly, with an average speed of 2.3 m/s (5 mph), marking a gentle increase from the preceding months. This uptick follows a generally stable wind pattern throughout the fall, where speeds hovered around 2.0 m/s (4 mph) in November. Interestingly, this winter season presents the highest average wind velocity since the summer months, signaling a subtle shift as Rasht prepares for the cold. While overall wind speeds remain relatively low year-round, December's cooler air and increased wind may create a refreshing contrast against the often damp and cloudy backdrop, inviting locals to experience the briskness of the season.
Weather in Rasht varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rasht, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January weather exhibits notable differences, particularly in temperature and precipitation patterns. December experiences a milder average temperature of 10°C (50°F), with a maximum reaching up to 26°C (80°F), while January is cooler, with an average of 8°C (46°F) and a maximum of 22°C (71°F). Interestingly, December has slightly higher precipitation at 126 mm (5.0 in) over 12 days, compared to January's 110 mm (4.3 in) over 10 days. Humidity levels also rise in January to 75%, up from December's 72%. For more detailed insights, you can explore Rasht weather in January.
December and February in Rasht present distinct weather patterns, reflecting the transition from late autumn to early spring. In December, temperatures average around 10°C (50°F), with a comfortable maximum of 26°C (80°F), though it can drop to a chilly minimum of -3°C (26°F). The month sees about 126 mm (5.0 in) of precipitation over 12 days, with a humidity level of 72%. In contrast, February experiences slightly cooler temperatures, with an average of 8°C (46°F) and a minimum dipping to -9°C (16°F), while the maximum remains in a mild range of 25°C (77°F). This month has a higher precipitation total of 153 mm (6.0 in) over 13 days and slightly increased humidity at 75%. For more details, check out Rasht weather in February.
December and March present distinct weather patterns, though both months share a similar humidity level of 72%. In December, temperatures range from a chilly minimum of -3°C (26°F) to a mild maximum of 26°C (80°F), with an average of 10°C (50°F). This month experiences about 126 mm (5.0 in) of precipitation spread over 12 days. Conversely, March offers a slightly warmer climate, with temperature fluctuations from -1°C (30°F) to a high of 29°C (85°F) and an average of 11°C (52°F). The precipitation in March measures 114 mm (4.5 in) but occurs over 15 days, indicating a wetter month despite the comparable overall humidity. For more details on March weather specifics, you can refer to Rasht weather in March.
In December, Rasht experiences cooler temperatures, with a minimum of -3°C (26°F) and an average of 10°C (50°F), while the month sees a maximum reaching 26°C (80°F). The precipitation is notable, with 126 mm (5.0 in) falling over 12 days and a humidity level of 72%. In contrast, April brings milder weather, starting with a minimum of 2°C (35°F) and averaging 14°C (57°F), while the maximum can rise to a warm 31°C (89°F). Although April has slightly less precipitation at 120 mm (4.7 in) over 13 days, the humidity decrease to 65% contributes to a more comfortable atmosphere. For more specific details about April weather, you can check Rasht weather in April.
December and May present distinctly different weather patterns. In December, temperatures can range from a chilly -3°C (26°F) at their lowest to a comfortable 26°C (80°F) at their peak, with an average temperature of around 10°C (50°F). The month sees significant precipitation, totaling 126 mm (5.0 in) over 12 days, accompanied by a humidity level of 72%. In contrast, May offers a much warmer experience, with temperatures starting at a milder 8°C (47°F), averaging 19°C (67°F), and soaring up to a maximum of 36°C (97°F). Precipitation in May is lighter, at just 53 mm (2.1 in) over 9 days, and the humidity is slightly lower at 65%. For more detailed weather insights, visit Rasht weather in May.
In December, Rasht experiences a cooler climate with temperatures ranging from a chilly minimum of -3°C (26°F) to a comfortable maximum of 26°C (80°F), averaging around 10°C (50°F). The month witnesses significant precipitation, totaling 126 mm (5.0 in) over about 12 days, coupled with moderate humidity levels at 72%. In contrast, June brings a warmer atmosphere, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 35°C (96°F), averaging 24°C (76°F). This month sees much less rainfall, with only 33 mm (1.3 in) spread over approximately 5 days, and a slightly lower humidity of 65%. For a closer look at June weather, you can visit Rasht weather in June.
In December, Rasht experiences cooler temperatures with a minimum of -3°C (26°F) and an average of 10°C (50°F), reaching a maximum of 26°C (80°F) on warmer days. The month sees significant precipitation, totaling 126 mm (5.0 in) over 12 days, along with a relatively high humidity level of 72%. In contrast, July brings much warmer weather, with temperatures ranging from a minimum of 15°C (60°F) to a scorching maximum of 36°C (98°F), and an average of 26°C (79°F). Precipitation decreases to 98 mm (3.8 in) over 10 days, and humidity drops to 61%. For further details, you can check Rasht weather in July.
In December, temperatures in Rasht can range from a chilly minimum of -3°C (26°F) to a comfortable maximum of 26°C (80°F), with an average of around 10°C (50°F). The month experiences significant precipitation, totaling 126 mm (5.0 in) over about 12 days, accompanied by a humidity level of 72%, contributing to a damp atmosphere. In contrast, August brings warmer days, with temperatures ranging from a minimum of 13°C (56°F) to a scorching maximum of 36°C (98°F) and an average of 25°C (78°F). Precipitation is lower in August, at 102 mm (4.0 in) over roughly 10 days, and the humidity drops to 49%, creating a much drier and hotter climate. For a detailed view of the weather in August, you can check Rasht weather in August.
In December, the weather experiences a significant drop in temperatures compared to September, with minimums reaching as low as -3°C (26°F) and average highs around 10°C (50°F). In contrast, September boasts warmer conditions, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 36°C (97°F). While both months see notable precipitation, December's 126 mm (5.0 in) over 12 days is slightly less than September's 179 mm (7.0 in) over 15 days. Additionally, December has higher humidity levels at 72%, compared to September’s 58%. For a closer look at September weather specifics, check out Rasht weather in September.
When comparing the weather in December to October, it's evident that December is notably colder, with average temperatures ranging from a minimum of -3°C (26°F) to a maximum of 26°C (80°F), while October enjoys milder temperatures from 7°C (44°F) to 31°C (88°F). Precipitation levels also differ significantly, with December receiving 126 mm (5.0 in) over 12 days, compared to October's higher total of 214 mm (8.4 in) over 15 days. Additionally, humidity remains relatively constant between the two months, with December at 72% and October at 73%. For more details about October's weather, visit Rasht weather in October.
December weather in Rasht shows a notable shift compared to November. While the average temperature in December hovers around 10°C (50°F), the minimum dips to -3°C (26°F), making it generally cooler than November, which averages 13°C (55°F) with a minimum of 1°C (34°F). Additionally, December experiences less rainfall, totaling 126 mm (5.0 in) over 12 days, compared to November's 246 mm (9.7 in) over 15 days. The humidity level in December is slightly lower at 72%, while November maintains a humidity of 75%. For more detailed insights on November's weather, you can explore Rasht weather in November.
As December unfolds in Rasht, the weather presents a striking contrast to the warmer months. With an average temperature dipping to a cool 10°C (50°F), the charm of winter becomes evident, inviting cozy atmospheres and seasonal festivities. While highs can reach a pleasant 26°C (80°F), the nights can be surprisingly chilly, sometimes plunging to a brisk -3°C (26°F). Rainfall is a regular visitor during this month, totaling 126 mm (5.0 in) over about 12 days, enhancing the lush greenery that Rasht is renowned for. This increase in humidity, sitting at 72%, adds a captivating mystique to the landscape. For those curious about Rasht's distinct climate patterns, further details are available at Rasht Climate.