September Weather in Klaipeda, Lithuania

Last updated: August 21, 2025

September in Klaipeda, Lithuania brings a dynamic shift in weather, showcasing a maximum temperature of 28°C (82°F), while the average hovers around a crisp 14°C (58°F). As the month progresses, minimum temperatures can dip to 2°C (36°F), hinting at the approach of autumn. Rainfall is a common occurrence, with 79 mm (3.1 in) of precipitation recorded over approximately 13 days, contributing to the region's 81% humidity. This blend of mild warmth and occasional showers creates a unique atmosphere, perfect for experiencing the coastal beauty of Klaipeda as summer gracefully transitions into fall.

September Temperature in Klaipeda

In September, Klaipeda, Lithuania experiences a refreshing transition as summer wanes and autumn approaches. The temperatures range from a mild 2°C (36°F) at their lowest to a pleasant 28°C (82°F) at the peak, with an average of 14°C (58°F) making it a comfortable month for outdoor activities. This gradual cooling trend from the sweltering heights of summer invites locals and visitors alike to enjoy the stunning fall foliage while basking in the remnants of warm days. As the month progresses, the crispness in the air signals the inevitable arrival of colder seasons, making September a perfect time to relish the last vestiges of warmth before embracing autumn's chill.

September Weather in Klaipeda: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Klaipeda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Klaipeda, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec333236445464666558504235
Data source: Temperature data for Klaipeda 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.

September Precipitation in Klaipeda

September in Klaipeda, Lithuania, brings a generous 79 mm (3.1 in) of precipitation, showcasing a notable transition into the wetter autumn months. With 13 days of rain, the frequency mirrors that of the summer months, hinting at a lingering warmth that allows for regular showers. This increase from the drier spell in late spring and early summer marks a shift, as October looms with an even higher 100 mm (3.9 in) forecasted. Overall, September acts as a bridge, balancing the summer's abundance with the impending autumnal deluge, setting the stage for the cooler, rainier months ahead.

September Precipitation Trends in Klaipeda

The chart displays monthly precipitation patterns in Klaipeda, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Klaipeda, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5947533342468484791006864
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Klaipeda

As September arrives in Klaipeda, Lithuania, the humidity begins to recede from the peak summer levels but remains notably high at 81%. This month serves as a transition, showing a gradual return to the higher humidity typical of the fall and winter months, which peak at 91% in November and December. Notably, September's humidity is slightly lower than the summer averages of around 76% but still significantly higher than the spring months. This pattern indicates that as the season shifts, residents can expect a blend of slightly cooler temperatures accompanied by the lingering atmospheric moisture that characterizes this coastal city.

September Average Humidity in Klaipeda

This chart illustrates the average monthly humidity levels in Klaipeda, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Klaipeda is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%89%85%74%75%76%76%81%89%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Klaipeda

As summer fades into autumn, Klaipeda, Lithuania, experiences a shift in its UV Index. In September, the UV Index dips to 5, indicating a moderate exposure category, with a burn time of 30 minutes for fair-skinned individuals. This trend reflects a gradual decrease from the peak summer months, where levels reached 7 in July and June. As the season transitions, it’s essential to stay vigilant with sun protection as UV rays can still impact your skin. For more detailed insights on UV conditions, visit Klaipeda UV Index.

Maximum UV Index Levels in Klaipeda for September

The chart shows the monthly maximum UV Index (UVI) for Klaipeda in September, 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 September, the maximum UV index in Klaipeda typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765321
Data source: Klaipeda September 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.

September Sunshine in Klaipeda

September in Klaipeda, Lithuania, offers a delightful transition into autumn, boasting 315 hours of sunshine. This month continues a trend of gradually declining daylight after the sun-soaked summer months, with June and July shining the brightest at over 450 hours each. As the year progresses, the radiant days of August begin to wane, yet September still retains a generous amount of sunlight, making it a picturesque time to explore the charming coastal city. The sun's warm embrace lingers just a bit longer before the cooler months arrive, highlighted by the dramatic drop in hours as October approaches, signaling the inevitable chill of winter ahead.

Monthly Sunshine Duration in Klaipeda: September Highlighted

The September sunshine duration represents the total number of hours Klaipeda experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec93h188h263h360h435h456h449h391h315h237h144h104h
Data source: Klaipeda September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Klaipeda During September

In Klaipeda, Lithuania, September offers a 39% chance of sunny weather, indicating a modest return to brightness as summer gently fades. This value is a slight decline from the sunnier days of June (64%) and July (48%), but it remains more favorable than the gloomy months that follow, such as October (37%) and November (19%). As the hot summer retreats, locals and visitors can still enjoy a fair number of pleasant days, with September serving as a balance between warmth and the approaching chill of autumn. The overall trend reveals that while late summer presents the highest chances for sunshine, September maintains a respectable position, inviting outdoor activities amidst the shifting seasons.

Percentage of Sunny Days in September in Klaipeda

The chart illustrates the percentage of sunny days in Klaipeda throughout the year, with September 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 Klaipeda experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec11%34%36%41%40%64%49%32%39%37%19%26%
Data source: Klaipeda September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Klaipeda in September

As summer fades into autumn in Klaipeda, Lithuania, September witnesses a gentle decline in daylight duration, offering around 12 hours of light each day. This month serves as a transition, balancing the lingering warmth of summer, which boasts nearly 17 hours of daylight in June and July, with the approaching shorter days of fall. Following a peak in May and June, daylight gradually decreases, reflecting a rhythm that feels both comforting and familiar. The shorter days of September prepare residents for the cozy embrace of autumn, leading into October's 10 hours and November's 8 hours of daylight, as the region begins to settle into the colder months ahead.

Average Daylight Hours in Klaipeda for September

The chart illustrates the variation in daylight duration in Klaipeda throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 43m9h 36m11h 53m14h 13m16h 17m17h 25m16h 49m14h 55m12h 40m10h 22m8h 16m7h 6m
Data source: Klaipeda daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Klaipeda

As autumn approaches in Klaipeda, Lithuania, September brings a gentle shift in the coastal breeze, with an average wind speed of 4.2 m/s (9 mph). This slight uptick compared to the summer months signals a transition, as the winds begin to invigorate the air, refreshing the scenic views along the Baltic Sea. While the warmer months of June and July experience their most subdued gusts, September's breezes hint at the change of seasons, paving the way for the brisker winds that October will unveil. Embodying the essence of early fall, the September winds create a perfect backdrop for exploration and contemplation as nature prepares for its stunning autumn transformation.

Average September Wind Speed in Klaipeda

The chart displays monthly wind speed patterns in Klaipeda, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.04.54.54.22.93.34.04.2 m/s5.14.94.7
Data source: Klaipeda September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Klaipeda Compares to Other Months

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

In September, the weather in Klaipeda presents a mild transition from summer to autumn, with temperatures ranging from a minimum of 2°C (36°F) to a comfortable maximum of 28°C (82°F) and an average of 14°C (58°F). The month receives 79 mm (3.1 in) of precipitation over 13 days, accompanied by a humidity level of 81%, making it feel quite refreshing. In contrast, January brings a stark change, plunging into winter with temperatures that can drop as low as -20°C (-4°F) and hover around an average of 0°C (33°F). Although precipitation is slightly lower at 59 mm (2.3 in) over the same number of days, the humidity rises to 91%, contributing to a cold, crisp atmosphere. For more detailed insights, you can check out Klaipeda weather in January.

September and February offer starkly contrasting weather experiences. In September, temperatures range from a mild 2°C (36°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). The month sees a decent amount of rain, with 79 mm (3.1 in) falling over 13 days, while humidity levels hover around 81%, contributing to a crisp yet pleasant atmosphere. In comparison, February is characterized by much colder weather, with temperatures plummeting to a minimum of -22°C (-7°F) and averaging around 0°C (32°F). The maximum temperature reaches only 11°C (52°F), and precipitation is lower at 47 mm (1.8 in) over 10 days, but the humidity is notably high at 90%, enhancing the chill in the air. For more detailed insights on February weather conditions, you can check out this link: Klaipeda weather in February.

September and March present stark contrasts in weather patterns. In September, temperatures range from a minimum of 2°C (36°F) to a pleasant maximum of 28°C (82°F), with an average of 14°C (58°F). The month sees around 79 mm (3.1 in) of precipitation across 13 days, accompanied by relatively high humidity at 81%. Conversely, March features much colder conditions, with temperatures dipping as low as -19°C (-2°F) and only reaching a maximum of 15°C (59°F), resulting in an average temperature of just 2°C (36°F). The precipitation is lower at 53 mm (2.1 in) over 14 days, but humidity rises to 89%. For a more detailed look at the weather in March, you can check out Klaipeda weather in March.

When comparing the weather in September and April, a few significant differences stand out. September generally enjoys milder temperatures, with an average of 14°C (58°F) compared to April's cooler average of 7°C (45°F). The maximum temperature in September reaches up to 28°C (82°F), while in April, it peaks at 26°C (80°F). Additionally, September experiences more precipitation with 79 mm (3.1 in) over 13 days, whereas April has only 33 mm (1.3 in) over 9 days. Both months are relatively humid, but September's humidity is slightly lower at 81% compared to April's 85%. For more detailed insights, you can check out Klaipeda weather in April.

In September, temperatures in Klaipeda range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average temperature of 14°C (58°F). The month experiences more precipitation, totaling 79 mm (3.1 in) across about 13 days, and has a higher humidity level at 81%. In contrast, May's weather features slightly cooler temperatures, with a minimum of -2°C (29°F), an average of 12°C (54°F), and a maximum of 29°C (84°F). Additionally, May sees less precipitation at 42 mm (1.7 in) over 10 days and a lower humidity level of 74%. For more detailed information on May weather in this region, you can visit Klaipeda weather in May.

When comparing the weather in September and June, a noticeable shift in temperature and precipitation patterns emerges. September experiences a broader temperature range, with a minimum of 2°C (36°F) and a maximum of 28°C (82°F), resulting in an average of 14°C (58°F). In contrast, June offers warmer temperatures, with a minimum of 3°C (38°F) and a maximum of 32°C (91°F), leading to an average of 18°C (64°F). Additionally, September sees higher precipitation levels, totaling 79 mm (3.1 in) over 13 days, while June has less rainfall at 46 mm (1.8 in) over 8 days. The humidity is slightly higher in September at 81%, compared to June’s 75%. For a more detailed overview of June weather, you can visit Klaipeda weather in June.

When comparing the weather in September to that of July, notable differences emerge in temperature and humidity. September exhibits a broader temperature range, with minimums dipping to 2°C (36°F) and maximums reaching up to 28°C (82°F), while the average temperature hovers around 14°C (58°F). In contrast, July tends to be warmer, with minimum temperatures of 9°C (48°F) and maximums peaking at 32°C (89°F), averaging 19°C (66°F). Although both months experience similar precipitation levels, with July receiving 84 mm and September yielding 79 mm, September is slightly wetter in terms of days with rainfall, totaling 13 days compared to July's count. Interestingly, humidity is higher in September at 81% compared to July's 76%, reflecting the transitional nature of early autumn. For more details on July weather in Klaipeda, please visit Klaipeda weather in July.

In September, temperatures show a notable drop compared to August, with minimums reaching 2°C (36°F) compared to August’s 7°C (45°F). The average temperature for September is 14°C (58°F), while August maintains a warmer average of 18°C (65°F). Additionally, the maximum temperatures in September peak at 28°C (82°F), slightly lower than August’s highs of 31°C (89°F). Both months experience a similar level of precipitation, with September totaling 79 mm (3.1 in) and August slightly more at 84 mm (3.3 in), but the humidity is higher in September at 81%, compared to August's 76%. For more detailed weather insights, check out Klaipeda weather in August.

September and October experience notable shifts in weather patterns. September showcases a milder climate with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), while October's temperatures drop significantly, with a minimum of -1°C (31°F) and an average of just 10°C (50°F). Precipitation also increases in October, with 100 mm (3.9 in) falling over 16 days compared to September's 79 mm (3.1 in) over 13 days, reflecting a shift towards wetter conditions. Additionally, humidity rises from 81% in September to 89% in October, contributing to a more pronounced chill in the air. For more detailed information, you can visit Klaipeda weather in October.

In September, the weather in Klaipeda showcases a wide range of temperatures, with a minimum of 2°C (36°F) and a maximum of 28°C (82°F), making it feel quite warm during the day. The average temperature hovers around 14°C (58°F), and while there are 13 days of precipitation totaling 79 mm (3.1 in), the humidity sits at a relatively comfortable 81%.

In contrast, November ushers in cooler conditions, where temperatures drop significantly, with a minimum of -6°C (22°F) and a maximum of only 14°C (57°F). The average temperature falls to 6°C (43°F), and although there are 14 days of precipitation amounting to 68 mm (2.7 in), the humidity increases to 91%, giving the month a distinctly chillier and wetter feel. For those interested in more details, refer to Klaipeda weather in November.

In September, the weather in Klaipeda is characterized by milder temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average temperature of 14°C (58°F). The month sees about 79 mm (3.1 in) of precipitation over 13 days and has a relative humidity of 81%. In stark contrast, December brings a significant drop in temperatures, with a minimum of -15°C (6°F) and a maximum of just 10°C (50°F), averaging around 2°C (35°F). While December has less precipitation at 64 mm (2.5 in) over 15 days, the humidity rises to 92%, creating a cold and damp atmosphere. For more details, check Klaipeda weather in December.

Compare Klaipeda's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Klaipeda

As summer transitions to autumn, September in Klaipeda brings a noticeable change in weather, marked by a dip in temperatures and increased precipitation. While the month still holds onto some warmth with occasional highs reminiscent of summer, the overall atmosphere shifts towards cooler days and brisk evenings. With an average temperature that hovers around 14°C, it's a time when the vibrant colors of nature start to emerge, alongside a rise in humidity that can make the air feel heavier. Frequent rain showers remind us of the impending autumn season, as precipitation days climb to 13. For those looking to grasp the unique climate characteristics of this coastal city, further insights can be found at Klaipeda Climate.