September Weather in Dilijan, Armenia

Last updated: August 21, 2025

September in Dilijan, Armenia offers a pleasant climate characterized by a maximum temperature reaching 26°C (80°F), while the average hovers around 13°C (57°F). As the month transitions into autumn, temperatures can dip to a minimum of 2°C (35°F), providing a refreshing contrast. Rainfall is moderate, with a total precipitation of 60 mm (2.4 in) spread over 12 days, contributing to a humid environment at 67%. This mixture of warm days and cool nights, alongside occasional showers, creates an inviting atmosphere for visitors to explore the lush landscapes of Dilijan.

September Temperature in Dilijan

In September, Dilijan, Armenia, experiences a gentle transition as summer begins to wane. With minimum temperatures starting at 2°C (35°F) and averages climbing to a comfortable 13°C (57°F), the region enjoys a mild climate perfect for outdoor exploration. Days can still be warm, peaking at 26°C (80°F), making it an ideal month for hiking and enjoying the lush landscapes that thrive in this vibrant, late-summer atmosphere. As autumn approaches, you can sense a slight chill in the air, contrasting the warm days and hinting at the cooler months ahead. This month strikes a delightful balance between the lingering warmth of summer and the crispness that fall brings, creating a pleasant experience for visitors and locals alike.

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

The chart illustrates September temperature patterns in Dilijan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dilijan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec212532415158636156473628
Data source: Temperature data for Dilijan 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 Dilijan

In September, Dilijan, Armenia experiences a moderate decline in precipitation, receiving 60 mm (2.4 in) over approximately 12 days. This marks a notable decrease from the summer months, where heavier rains peak in May at 181 mm (7.1 in) and gradually taper off into the fall. The gentle shift in rainfall patterns signals the onset of autumn, providing a refreshing transition from the lushness of summer to the drier months ahead. As the days grow shorter and the air cooler, September's precipitation serves as a gentle reminder of the changing seasons, paving the way for the crisp, colorful days of October.

September Precipitation Trends in Dilijan

The chart displays monthly precipitation patterns in Dilijan, 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 Dilijan, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec30481141381811411037160704950
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dilijan

In Dilijan, Armenia, the month of September marks a subtle shift in humidity levels, dropping to 67% after the warm summer months. Following August’s notably lower humidity of 66%, September maintains a comfortable range that signals the approach of autumn. Throughout the year, humidity peaks in the winter months, with January and February recording 87% and 88% respectively, creating a stark contrast to the drier summer period. The gradual decline from April's 80% highlights the seasonal transition, as the region enjoys a refreshing crispness in the air. As October approaches with its rising humidity of 81%, the trend suggests a return to the wetter conditions typical of Dilijan’s climate, setting the stage for the lush landscapes that thrive in the wetter seasons.

September Average Humidity in Dilijan

This chart illustrates the average monthly humidity levels in Dilijan, 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 Dilijan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%85%81%78%79%80%66%67%81%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dilijan

As September rolls into Dilijan, Armenia, the UV Index remains notably high at 9, indicating a strong need for sun protection. This marks a slight decline from the intense peak of 11 observed in July and August, where the risk of harm from unprotected sun exposure was classified as extreme. With a burn time of just 15 minutes, it's crucial for visitors and residents alike to stay vigilant against harmful rays. Interestingly, this period follows a trend of very high UV levels throughout the summer months, with only a gradual tapering off as the seasons transition into fall. As the weather cools, one can expect a decrease in UV exposure; October marks a drop to 7. For those planning outdoor activities, this data underscores the importance of precaution, making it essential to stay informed through resources like Dilijan UV Index.

Maximum UV Index Levels in Dilijan for September

The chart shows the monthly maximum UV Index (UVI) for Dilijan 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 Dilijan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3598101111109743
Data source: Dilijan 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 Dilijan

September in Dilijan, Armenia, embraces the last rays of summer with a generous 313 hours of sunshine, marking a delightful transition into autumn. This month experiences a slight decline in sunlight compared to the peak of summer, where June and July shine with 392 and 396 hours respectively. However, September remains notably brighter than the chillier months that follow, showcasing a beautiful blend of warmth and crispness in the air. As nature prepares for the colorful fall, visitors can relish in the golden hues of the landscape under a sky that has already gifted 2,670 hours of sunshine throughout the year, painting a picturesque scene that makes Dilijan a stunning destination in early autumn.

Monthly Sunshine Duration in Dilijan: September Highlighted

The September sunshine duration represents the total number of hours Dilijan 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.
JanFebMarAprMayJunJulAugSepOctNovDec207h261h297h311h368h392h396h380h313h288h246h239h
Data source: Dilijan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dilijan During September

In Dilijan, Armenia, September offers a 39% chance of sunny weather, placing it in the middle range compared to other months. This slight dip in sunshine likelihood follows the warmer summer months, where August peaks at 56%, suggesting a gradual transition into fall. Interestingly, the rate of sunny days in September is higher than some spring months like April and May, which indicates that while the summer warmth may be waning, the opportunity for pleasant weather remains. As autumn approaches, visitors can still expect enjoyable, albeit less predictable, sunny days perfect for exploring the scenic beauty of Dilijan.

Percentage of Sunny Days in September in Dilijan

The chart illustrates the percentage of sunny days in Dilijan 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 Dilijan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%53%37%33%39%54%35%57%39%43%49%57%
Data source: Dilijan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dilijan in September

As the summer warmth begins to fade in September, Dilijan experiences a gentle shift in its daylight duration, offering about 12 hours of sunlight per day. This month marks a transition from the longer, sun-drenched days of June and July, where daylight peaks at 15 hours, down to the more balanced hours of autumn. While the days gradually shorten, the lingering warmth and light create a serene ambiance that is perfect for outdoor exploration. Following September, daylight continues to wane, dipping to 11 hours in October and falling sharply as winter approaches. This rhythmic ebb and flow of daylight throughout the year not only highlights the changing seasons but also enhances the picturesque beauty of Dilijan.

Average Daylight Hours in Dilijan for September

The chart illustrates the variation in daylight duration in Dilijan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 38m11h 57m13h 18m14h 27m15h 1m14h 43m13h 43m12h 25m11h 4m9h 54m9h 17m
Data source: Dilijan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Dilijan

As the seasons transition into autumn, September in Dilijan, Armenia, witnesses a gentle whisper of wind, with an average speed of just 1.4 m/s (3 mph). This marks a slight decline from the summer months, where breezes maintained a consistent vigor. The trend reveals a steady moderation in wind velocity throughout the year, with the calmest winds found during late summer. With October on the horizon, the winds continue to soften, dropping to 1.3 m/s (3 mph). This serene shift invites reflective moments amidst nature's changing canvas, embodying the tranquil essence of September in this picturesque locale.

Average September Wind Speed in Dilijan

The chart displays monthly wind speed patterns in Dilijan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.11.61.71.51.61.61.51.4 m/s1.31.82.3
Data source: Dilijan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Dilijan Compares to Other Months

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

In September, temperatures can range from a chilly 2°C (35°F) at night to a pleasant maximum of 26°C (80°F) during the day, with an average of 13°C (57°F). This month sees about 60 mm (2.4 in) of rainfall over approximately 12 days, while humidity levels hover around 67%. In contrast, January presents a stark transformation in weather, characterized by much colder conditions: temperatures can drop as low as -20°C (-5°F) and usually stay around an average of -6°C (21°F), reaching a maximum of only 6°C (44°F). January has significantly less precipitation, accumulating around 30 mm (1.2 in) over just 6 days, but the humidity is higher at 87%, adding to the biting cold. For more details, check out Dilijan weather in January.

September and February present stark contrasts in weather patterns. In September, temperatures range from a chilly 2°C (35°F) at night to a warm 26°C (80°F) during the day, with an average of 13°C (57°F). The month experiences about 60 mm (2.4 in) of precipitation over 12 days, and humidity levels hover around 67%. In contrast, February is much colder, with temperatures dipping as low as -24°C (-11°F) and averaging -4°C (25°F) during the day, peaking at 8°C (47°F). Precipitation is slightly lower at 48 mm (1.9 in), occurring over 9 days, and the humidity rises to a notable 88%. For more insights on February weather specifically, you can explore Dilijan weather in February.

In comparing September and March, it's clear that March experiences significantly colder temperatures, with an average of 0°C (32°F) compared to September's milder average of 13°C (57°F). While September boasts a higher maximum temperature of 26°C (80°F), March's temperatures can dip as low as -12°C (10°F). Precipitation is also more abundant in March, totaling 114 mm (4.5 in) over 17 days, compared to 60 mm (2.4 in) over 12 days in September. Additionally, humidity levels are higher in March at 85%, contrasting with September's 67%. For a closer look at what to expect during March, you can check out Dilijan weather in March.

When comparing the weather in September to that of April, notable differences emerge in both temperature and precipitation levels. September tends to be milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 26°C (80°F) and an average of 13°C (57°F). In contrast, April experiences colder temperatures, with lows around -11°C (13°F) and highs reaching 19°C (67°F), averaging only 5°C (42°F). Additionally, April brings significantly more precipitation, totaling 138 mm (5.4 in) across 21 days, compared to September's 60 mm (2.4 in) over 12 days. The humidity is also higher in April at 80%, versus September's 67%. For those interested in more details, check out Dilijan weather in April.

In September, the weather is generally warmer with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 26°C (80°F), while May experiences cooler temperatures, peaking at 24°C (76°F) but dropping as low as -2°C (29°F). September also tends to be drier, with only 60 mm (2.4 in) of precipitation over 12 days, compared to May’s significantly higher rainfall of 181 mm (7.1 in) spread over 23 days. Additionally, September's humidity level is slightly lower at 67%, whereas May maintains a higher humidity at 78%. For more details on May weather conditions, you can check Dilijan weather in May.

When comparing the weather in September and June, we can observe distinct differences in temperature, precipitation, and humidity. September features a wider temperature range, with minimums dropping to 2°C (35°F) and maximums reaching 26°C (80°F), giving an average of 13°C (57°F). In contrast, June has a slightly warmer temperature profile with a minimum of 5°C (41°F) and a maximum of 24°C (76°F), averaging around 15°C (59°F).

Additionally, June experiences significantly higher precipitation, totaling 141 mm (5.5 in) over 22 days, compared to September’s 60 mm (2.4 in) on just 12 days. The humidity also tends to be higher in June at 79%, versus September's 67%. For more detailed information about weather specifics in June, you can check Dilijan weather in June.

In September, the weather begins to cool down with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 26°C (80°F), averaging around 13°C (57°F). The month sees about 60 mm (2.4 in) of precipitation over approximately 12 days, with a humidity level of 67%. In contrast, July tends to be warmer, featuring temperatures that span from a minimum of 7°C (45°F) to a maximum of 27°C (82°F), with an average of 17°C (63°F). However, it is also wetter, receiving 103 mm (4.1 in) of rain over 19 days and experiencing higher humidity at 80%. For more specific July weather details, you can check this link: Dilijan weather in July.

In comparing the weather between August and September, we can observe some notable differences. September experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (57°F), while August is warmer, featuring a minimum of 6°C (43°F) and an average of 16°C (62°F). Additionally, the maximum temperatures in August reach 28°C (82°F), compared to September's maximum of 26°C (80°F). However, September has slightly lower precipitation, at 60 mm (2.4 in) over 12 days, compared to August's 71 mm (2.8 in) over 14 days, making it a somewhat drier month. Humidity levels are quite similar, with September at 67% and August at 66%. For more details on August weather, you can check Dilijan weather in August.

September typically features a milder climate with temperatures ranging from a low of 2°C (35°F) to a high of 26°C (80°F) and an average of 13°C (57°F). In contrast, October ushers in cooler weather, with temperatures dropping to a minimum of -3°C (27°F) and peaking at 19°C (67°F) and an overall average of 8°C (47°F). While both months experience a significant amount of precipitation, October has slightly more at 70 mm (2.8 in) over 11 days, compared to September's 60 mm (2.4 in) over 12 days. Additionally, humidity levels rise in October to 81%, up from September's 67%, making the air feel notably heavier. For more detailed insights, check out Dilijan weather in October.

September and November present strikingly different weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 26°C (80°F) during the day, with an average of 13°C (57°F). This month sees around 60 mm (2.4 in) of precipitation over 12 days, accompanied by a comfortable humidity level of 67%.

In contrast, November ushers in much cooler temperatures, with nighttime lows plunging to -13°C (8°F) and daytime highs reaching only 17°C (62°F), averaging just 2°C (36°F). Rainfall decreases slightly to 49 mm (1.9 in) over 10 days, but humidity rises to a higher 84%. For more detailed information on November weather, you can visit Dilijan weather in November.

September and December exhibit stark contrasts in weather patterns. In September, temperatures range from a mild minimum of 2°C (35°F) to a pleasant maximum of 26°C (80°F), with an average of 13°C (57°F). The month experiences 60 mm (2.4 in) of precipitation over about 12 days, alongside a humidity level of 67%. In contrast, December brings much colder conditions, with temperatures dropping to a minimum of -21°C (-5°F) and only rising to a maximum of 10°C (50°F), averaging -2°C (28°F). Precipitation decreases slightly to 50 mm (2.0 in) over 8 days, but humidity increases to 85%. For a more detailed look at the weather in December, you can visit Dilijan weather in December.

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Conclusion: What to Expect From September Weather in Dilijan

As September unfolds in Dilijan, the weather presents a delightful transition from the warmth of summer to the crispness of autumn. With temperatures ranging between pleasant highs and cool evenings, this month often showcases a balance that sets it apart from the sweltering peak summer days. The increased humidity and occasional rainfall contribute to the lush greenery that the region is famous for, making it an ideal time for nature lovers and outdoor enthusiasts. With about 12 days of precipitation, September's gentle showers nourish the landscape, enhancing the vibrant fall colors that soon follow. For a deeper dive into the climatic nuances of this enchanting region, check out Dilijan Climate.