September Weather in Kuldiga, Latvia

Last updated: October 30, 2025

In September, Kuldiga, Latvia, experiences a dynamic shift in weather, characterized by a maximum temperature of 27°C (80°F) and an average of 13°C (56°F). As the month progresses, temperatures can dive to a chilly -2°C (29°F), highlighting the transition into autumn. Rainfall is notable with a total precipitation of 70 mm (2.7 in) spread across 12 days, coupled with an impressive humidity level of 85%. This variety in conditions paints a vivid picture of Kuldiga's early autumn climate, where cool breezes and occasional showers invite both locals and visitors to embrace the changing seasons.

September Temperature in Kuldiga

September in Kuldiga, Latvia marks a transition toward the cooler months, showcasing a blend of lingering warmth from summer and the impending chill of autumn. With temperatures ranging from a minimum of -2°C (29°F) to a maximum of 27°C (80°F), the month brings an average temperature of 13°C (56°F)—a noticeable dip compared to the summer highs. This shift is accompanied by a crispness in the air, as the lush summer days gradually give way to shorter, cooler evenings. It’s a time when the vibrant colors of nature begin to change, perfectly complementing the comfortable temperatures for outdoor exploration. As September progresses, residents and visitors alike can enjoy a delightful balance of warmth during the day and refreshing coolness at night, hinting at the beautiful autumn that lies ahead.

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

The chart illustrates September temperature patterns in Kuldiga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kuldiga, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (80°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec313034435262646356484133
Data source: Temperature data for Kuldiga 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 Kuldiga

September in Kuldiga, Latvia, marks a significant transition in the weather, delivering 70 mm (2.7 in) of precipitation over an average of 12 days. This month often serves as a bridge between the summer's higher rainfall—peaking at 91 mm (3.6 in) in both July and August—and the drier months of autumn. Notably, September's precipitation is less than the summer months but still substantial, reflecting the lingering effects of warm weather before the colder months set in. As the days grow shorter, this consistent rainfall prepares the landscape for the autumnal hues while hinting at the forthcoming chill. Overall, September's weather sets the stage for the gradual decline in precipitation that follows in October and November.

September Precipitation Trends in Kuldiga

The chart displays monthly precipitation patterns in Kuldiga, 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 Kuldiga, September typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec394151384857919170775748
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kuldiga

In Kuldiga, Latvia, September brings a moderate humidity level of 85%, marking a transition into the cooler months. This slight decrease from the summer peak in August, which recorded 81%, suggests a gradual shift as the air begins to cool with the approaching autumn. The humidity levels in Kuldiga are consistently high throughout the year, peaking at 90% in January, February, November, and December. As we move from September into October, humidity is expected to rise again to 89%, highlighting the region's characteristic dampness. Overall, September acts as a pivotal bridge between the humid summer months and the wetter fall season, setting the stage for the coming chill in the air.

September Average Humidity in Kuldiga

This chart illustrates the average monthly humidity levels in Kuldiga, 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 Kuldiga is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%89%87%77%79%79%81%85%89%90%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kuldiga

As September rolls into Kuldiga, Latvia, the UV Index dips to 4, categorizing it as moderate exposure. With a burn time of just 30 minutes, it signals a noticeable shift from the high summer months of July and August, where the UV Index peaked at 7. This drop not only invites a gentler sun but also serves as a reminder to remain vigilant during outdoor activities, as UV rays can still pose risks. The clear trend through the months shows an ebb and flow of sun exposure, starting from a low index in winter, climbing to intense levels in the height of summer, and then settling back in the moderate range by autumn. Enjoy the pleasant September days, but don’t forget to check the forecast! For more about UV levels throughout the year, visit Kuldiga UV Index.

Maximum UV Index Levels in Kuldiga for September

The chart shows the monthly maximum UV Index (UVI) for Kuldiga 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 Kuldiga typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567764211
Data source: Kuldiga 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 Kuldiga

September in Kuldiga, Latvia, brings a golden glow with 319 hours of sunshine, marking a delightful transition into autumn. This month experiences a noticeable decline from the sun-drenched days of summer, where June and July peaked at around 471 and 464 hours respectively. As the vibrant warmth of August recedes, September offers a gentle embrace of sunlight, with daylight hours still significant but beginning to wane. Interestingly, this dip foreshadows the rapidly decreasing luminosity of October and November, where sunny hours plummet to 234 and 144 respectively. Overall, September serves as a beautiful bridge between the long, sun-filled days of summer and the cool embrace of fall, inviting locals and visitors alike to savor the last rays of sun.

Monthly Sunshine Duration in Kuldiga: September Highlighted

The September sunshine duration represents the total number of hours Kuldiga 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.
JanFebMarAprMayJunJulAugSepOctNovDec86h182h272h365h452h471h464h403h319h234h144h89h
Data source: Kuldiga September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kuldiga During September

September in Kuldiga, Latvia, presents a moderate 31% chance of sunny weather, continuing a trend of fluctuating sunshine probabilities throughout the year. Following the vibrant summer months, where June boasts the highest likelihood at 59%, September marks a transition as the warmth begins to wane. While early autumn still offers some opportunities for sun, it shares a similar forecast with February and March, both featuring comparable sunshine chances. As the days grow shorter, this month serves as a gentle reminder of the shifting seasons, making it a captivating time to explore Kuldiga's charming cobblestone streets under the soft, golden light of early fall.

Percentage of Sunny Days in September in Kuldiga

The chart illustrates the percentage of sunny days in Kuldiga 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 Kuldiga experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec8%31%32%38%36%59%50%30%31%32%21%23%
Data source: Kuldiga September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kuldiga in September

As summer transitions into autumn, September in Kuldiga, Latvia, boasts a pleasant 12 hours of daylight, marking a shift from the long, sun-drenched days of June and July. This month serves as a bridge between the vibrant energy of summer and the gentle descent into winter, showcasing a gradual decline in daylight that begins in earnest. Notably, September's daylight hours are significantly higher than the more wintry months ahead, yet it's a decline from the 15 hours enjoyed in August. This gradual reduction allows residents and visitors to savor the lingering warmth of early autumn while anticipating the cozy charm of longer nights as the year progresses.

Average Daylight Hours in Kuldiga for September

The chart illustrates the variation in daylight duration in Kuldiga throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 28m9h 29m11h 52m14h 19m16h 31m17h 44m17h 5m15h 5m12h 42m10h 17m8h 3m6h 49m
Data source: Kuldiga daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kuldiga

As September unfolds in Kuldiga, Latvia, the wind begins to pick up, with an average speed of 3.8 m/s (8 mph). This gentle increase from August suggests a transition toward the brisker conditions typical of autumn. Compared to the summer months, where wind speeds hovered around the 3.1 to 3.7 m/s range, September's breezy charm marks a subtle shift, preparing the landscape for the vibrant hues of fall. Interestingly, as we look ahead, October whispers promises of stronger gusts at 4.4 m/s (10 mph), signaling that the heart of autumn is fast approaching, while the summer's mildness recedes into memory. Overall, September serves as a delightful bridge between the languid days of summer and the invigorating breath of autumn.

Average September Wind Speed in Kuldiga

The chart displays monthly wind speed patterns in Kuldiga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.54.14.33.72.63.13.73.8 m/s4.44.03.8
Data source: Kuldiga September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kuldiga Compares to Other Months

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

September and January present stark contrasts in weather conditions. September enjoys a milder climate, with temperatures ranging from a chilly minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F) and an average of 13°C (56°F). The month experiences about 70 mm (2.7 in) of precipitation over 12 days, coupled with a high humidity of 85%. In sharp contrast, January plunges into the depths of winter, characterized by much colder temperatures, with a minimum of -21°C (-5°F) and a maximum of only 8°C (47°F), averaging -1°C (31°F). Precipitation decreases to 39 mm (1.5 in) over just 9 days, although humidity remains quite high at 90%. For more detailed information, you can check out Kuldiga weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a milder minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F), with an average of 13°C (56°F). This month experiences about 70 mm (2.7 in) of precipitation over 12 days, accompanied by relatively high humidity at 85%.

In stark contrast, February is much colder, with temperatures dipping as low as -18°C (0°F) and only reaching a maximum of 10°C (51°F), resulting in an average temperature of -1°C (30°F). Precipitation is lower during this month, measuring 41 mm (1.6 in) over just 9 days, but the humidity remains slightly higher at 89%. For a more detailed overview, check out Kuldiga weather in February.

In September, the weather is generally mild and pleasant, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 27°C (80°F) and an average of 13°C (56°F). The month sees about 70 mm (2.7 in) of precipitation over approximately 12 days, with humidity levels around 85%. In contrast, March is considerably colder, with temperatures dropping to a low of -19°C (-2°F) and averaging just 1°C (35°F), reaching a maximum of 15°C (59°F). While March has slightly less precipitation at 51 mm (2.0 in) over 13 days, the humidity is slightly higher at 89%. For more details on March weather, check out Kuldiga weather in March.

When comparing the weather in September and April, we see notable differences in both temperature and precipitation. September boasts a warmer average temperature of 13°C (56°F), with maximum highs reaching up to 27°C (80°F), while April has a significantly cooler average of 6°C (43°F) and maximums of only 25°C (78°F). Additionally, September experiences higher precipitation with 70 mm (2.7 in) over 12 days, compared to April's 38 mm (1.5 in) over 10 days. Interestingly, humidity levels are similar, with September at 85% and April slightly higher at 87%. For more specific details about April's weather, check out Kuldiga weather in April.

In comparing the weather of September and May, we see a marked difference in temperature and precipitation. September typically offers a wider temperature range, with a minimum of -2°C (29°F) and a maximum of 27°C (80°F), averaging around 13°C (56°F). It tends to be more humid, with an average humidity of 85% and a higher precipitation level of 70 mm (2.7 in) spread over 12 days. In contrast, May features cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 28°C (83°F), averaging at 11°C (52°F). Rainfall in May is less frequent, totaling 48 mm (1.9 in) over 9 days, and the humidity is slightly lower at 77%. For a more detailed look at May weather, you can check out Kuldiga weather in May.

In September, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F), with an average of 13°C (56°F). The month experiences approximately 70 mm (2.7 in) of precipitation over 12 days, accompanied by high humidity levels around 85%. Conversely, June showcases warmer temperatures, with a minimum of 2°C (35°F) and a maximum reaching 31°C (88°F), averaging 17°C (63°F). The precipitation in June is slightly lower at 57 mm (2.2 in) over 10 days and with humidity at around 79%. For more details about the weather in June, you can check Kuldiga weather in June.

The weather in September is cooler compared to July, with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 27°C (80°F), while July sees milder conditions, with temperatures varying from 6°C (44°F) to 30°C (87°F). Additionally, September experiences a higher humidity level at 85%, compared to July's 79%, contributing to a distinctly different feel in the air. Precipitation in September is also notable, with 70 mm (2.7 in) over 12 days, while July receives slightly more at 91 mm (3.6 in) over 13 days. For more insights into July weather, check out Kuldiga weather in July.

In September, temperatures drop significantly compared to August, with minimums reaching -2°C (29°F) compared to August's milder 6°C (43°F). While the average temperature in September is 13°C (56°F), August enjoys a warmer average of 17°C (63°F). The maximum temperature in September is also lower, capped at 27°C (80°F) versus August's peak of 30°C (86°F). Precipitation in September is slightly less, totaling 70 mm (2.7 in) over 12 days, compared to 91 mm (3.6 in) over 13 days in August. Additionally, humidity remains relatively high in both months, with September at 85% and August at 81%. For more details, you can check the Kuldiga weather in August.

September and October present noticeable contrasts in weather patterns despite sharing similar minimum temperatures. September boasts a higher average temperature of 13°C (56°F) and can reach a maximum of 27°C (80°F), making it feel decidedly warmer. In contrast, October's average drops to 9°C (48°F), with a maximum of only 20°C (68°F). Both months experience considerable precipitation, but October sees a slight increase, with 77 mm (3.0 in) over 14 days compared to September's 70 mm (2.7 in) over 12 days. Humidity also climbs from 85% in September to 89% in October, contributing to a cooler and more damp atmosphere. For more detailed insights, you can check out Kuldiga weather in October.

In September, the weather in Kuldiga is generally milder, with average temperatures around 13°C (56°F) and highs reaching up to 27°C (80°F). The month experiences about 70 mm of precipitation over 12 days, coupled with a relatively high humidity of 85%. In contrast, November brings cooler conditions, with an average temperature of 5°C (41°F) and maximums of only 14°C (57°F). The precipitation in November is slightly less at 57 mm, occurring over 11 days, but the humidity rises to 90%. For a detailed look at November's weather, you can visit Kuldiga weather in November.

In September, temperatures range from a chilly -2°C (29°F) at night to a warm 27°C (80°F) during the day, with an average of 13°C (56°F). The month sees about 70 mm (2.7 in) of precipitation over approximately 12 days, with humidity levels at 85%. In contrast, December is significantly colder, featuring a minimum temperature of -14°C (7°F) and a maximum of just 9°C (48°F), averaging around 0°C (33°F). December sees less precipitation at 48 mm (1.9 in) over the same 12 days, but humidity is slightly higher at 90%. For more detailed information, check out Kuldiga weather in December.

Compare Kuldiga's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kuldiga

As September unfolds in Kuldiga, the weather marks a distinct transition from the warmth of summer to the crispness of autumn. With an average temperature settling around 13°C (56°F), days become more refreshing, while the occasional warm spell can still surprise with peaks nearing 27°C (80°F). However, as moisture levels rise with an 85% humidity and 70 mm of precipitation over 12 days, the month often brings a blend of sunshine and overcast skies, creating a vibrant tapestry of color in the stunning Latvian landscape. This unique blend of warmth and moisture makes September a captivating time to experience Kuldiga's charm, setting it apart from the generally drier, more stable weather of summer. For a more detailed look at the weather patterns throughout the year, explore Kuldiga Climate.