August Weather in Haines, United States

Last updated: February 24, 2025

In Haines, United States, the weather in August presents a unique blend of warmth and moisture, characterized by a maximum temperature reaching 27°C (80°F) and a cool average of 13°C (55°F). The minimum temperature dips to 4°C (40°F), creating a refreshing balance. This month is notably wet, with a total precipitation of 227 mm (8.9 in) spread across 20 days, resulting in a humidity level soaring to an impressive 117%. Such conditions contribute to the lush, vibrant landscape that Haines is renowned for during this season.

August Temperature in Haines

In Haines, United States, August brings a pleasant respite from the winter chill, with temperatures gradually warming. The month records a minimum of 4°C (40°F) and an average of 13°C (55°F), peaking at a comfortable 27°C (80°F). This slight increase in warmth continues the trend observed since June and July, where peak temperatures hover around the upper 20s Celsius (low 80s Fahrenheit). August marks the transition into early autumn, yet it maintains a delightful summer vibe, making it an inviting time for outdoor activities amid the backdrop of stunning landscapes. The temperatures reflect a notable shift from the harsh winters, hinting at the balance of seasonal changes that define Haines’s climate.

August Weather in Haines: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Haines, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec191624334051565548342324
Data source: Temperature data for Haines 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.

August Precipitation in Haines

In August, Haines experiences a notable surge in precipitation, with 227 mm (8.9 in) of rainfall, making it one of the wetter months of the year. This figure is a significant peak compared to July's lower total of 109 mm (4.3 in), reflecting a shift toward the tail end of summer as autumn approaches. Rainy days increase as well, with 20 days of precipitation, suggesting that this month serves as a transitional period where summer’s dryness gives way to more frequent rain. Interestingly, while August's rainfall is substantial, it is closely followed by September with 222 mm (8.7 in), indicating sustained wet conditions. As Haines progresses into autumn, this pattern of increased precipitation continues, culminating in the heavier rains of October, which sees an even higher level of 318 mm (12.5 in). This trend emphasizes Haines' climate dynamics, where summer ends on a notably soggy note.

August Precipitation Trends in Haines

The chart displays monthly precipitation patterns in Haines, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec250161188150150141109227222318276363
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Haines

In Haines, United States, August marks a peak in humidity, reaching an extraordinary 117%, a stark rise from the already high levels seen throughout the summer. This trend of escalating moisture is evident as humidity consistently hovers around the 90% mark from January to June, gradually increasing through July. The dramatic spike in August often leads to a sensation of heaviness in the air, making it a time when the natural landscapes thrive but can feel stifling to residents. Despite a slight decrease in September, the humidity remains notably high at 105%, suggesting that this coastal region experiences a lingering stickiness well into the late summer months. Such trends portray Haines as a place where moisture is a persistent companion, shaping both its environment and the experience of those who live there.

August Average Humidity in Haines

This chart illustrates the average monthly humidity levels in Haines, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec94%90%93%93%92%100%110%117%105%98%96%95%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Haines

In August, Haines experiences a UV Index of 7, indicating a high level of solar exposure that requires caution during outdoor activities. This consistent reading mirrors the peak levels observed in the summer months of May, June, and July, which also recorded the same UV Index, highlighting a trend of sustained high UV risks through the summer season. With a burn time of just 25 minutes, it’s important for residents and visitors alike to take protective measures against harmful UV rays. As the summer draws to a close, the UV Index will start to decline in September, but those enjoying the sun in August should remain vigilant. For more detailed information, check the Haines UV Index.

Maximum UV Index Levels in Haines for August

The chart shows the monthly maximum UV Index (UVI) for Haines in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124577775211
Data source: Haines August 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.

August Sunshine in Haines

In August, Haines enjoys a pleasant decline in sunshine compared to the peak summer months, offering 195 hours of sunlight. This marks a notable drop from July's 247 hours, indicating the gradual transition towards autumn. Interestingly, this pattern of decreasing sunlight continues into September, where the hours fall to 170. The early months of the year tell a different story, where sunshine starts as scarce as 43 hours in January, gradually increasing to a vibrant 248 hours by May. As the seasons shift from the radiant days of summer to the shorter, dimmer winter months, each month paints a picture of Haines’ unique relationship with sunlight, showcasing nature’s rhythms in this charming coastal town.

Monthly Sunshine Duration in Haines: August Highlighted

The August sunshine duration represents the total number of hours Haines experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec43h126h176h229h248h246h247h195h170h94h59h37h
Data source: Haines August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Haines During August

In Haines, Alaska, August tends to embody a transitional phase in the weather patterns, with the likelihood of sunny days hovering around 15%. This modest chance is reflective of a broader trend in the region, where the summer months, particularly July, also hold steady at 20% for sunshine. Notably, the chances of sunny weather see a significant dip as summer gives way to autumn, exemplified by the reduced percentages in September and October. While August may not boast the most favorable odds for sun seekers, it remains a time when the lingering warmth of summer invites outdoor activities, despite the uncertainty of clear skies.

Percentage of Sunny Days in August in Haines

The chart illustrates the percentage of sunny days in Haines throughout the year, with August 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 Haines experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%42%17%39%9%20%21%15%6%7%10%23%
Data source: Haines August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Haines in August

In August, Haines experiences a gradual decline in daylight hours, offering 15 hours of sunlight on average. This marks a notable decrease from the long, luminous days of summer, where June peaked at an impressive 18 hours. As the vibrant greens of summer begin to transition into the warm hues of autumn, the diminishing daylight hours signal a shift in the season. This trend continues into September, when daylight further reduces to 12 hours, highlighting the shortening of days as the year progresses. Observing this pattern, one can savor the vast, golden days of summer while anticipating the cozy embrace of fall.

Average Daylight Hours in Haines for August

The chart illustrates the variation in daylight duration in Haines throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 1m9h 16m11h 54m14h 35m17h 2m18h 25m17h 38m15h 21m12h 44m10h 5m7h 37m6h 13m
Data source: Haines daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Haines

In Haines, United States, August marks a notable shift in wind patterns, with average wind speeds rising to 1.7 m/s (4 mph), making it the windiest month of the summer. This increase follows a gradual upward trend that begins in June, where winds pick up slightly and continue through July. Despite the overall calm winds earlier in the year, where speeds hover around 1.1 m/s to 1.4 m/s, August brings a refreshing breeze that hints at the transition into fall. After August, wind speeds decline again as September and October approach, reminding us of the cyclical nature of Haines's coastal climate. This seasonal variation not only creates a dynamic environment but also enhances the picturesque beauty of the region, particularly as summer adventures wind down.

Average August Wind Speed in Haines

The chart displays monthly wind speed patterns in Haines, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.21.31.21.11.11.31.41.7 m/s1.51.11.21.2
Data source: Haines August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Haines Compares to Other Months

The weather in Haines changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Haines and find detailed weather information for every month.

August and January present stark contrasts in weather conditions. In August, temperatures range from a chilly 4°C to a warm 27°C, with an average of 13°C, while January experiences much colder extremes, with temperatures dipping as low as -28°C and averaging -7°C. Precipitation is more frequent in August, with 227 mm over 20 days, compared to January's 249 mm over just 16 days. Humidity levels also differ significantly, soaring to 117% in August, whereas January has a more moderate 94% humidity. For a closer look at the cold conditions typical of January, you can check out Haines weather in January.

August and February present contrasting weather conditions that highlight the extremes of the seasonal climate. In August, temperatures range from a minimum of 4°C to a balmy maximum of 27°C, accompanied by high humidity levels of 117% and significant rainfall averaging 227 mm over 20 days. On the other hand, February showcases a starkly different landscape, with frigid temperatures plummeting to a minimum of -30°C and an average of -9°C, while experiencing lower precipitation at 161 mm spread over just 12 days. The humidity is also lower in February at 90%, contributing to the chilly atmosphere. For more specifics on February's weather, you can visit Haines weather in February.

August and March present stark contrasts in weather conditions. In August, temperatures can reach a maximum of 27°C (80°F) with an average of 13°C (55°F), accompanied by high humidity levels reaching 117%. The month experiences significant rainfall, with precipitation totaling 227 mm (8.9 in) over 20 days. Conversely, March is characterized by much colder temperatures, with a maximum of only 10°C (50°F) and an average of -4°C (25°F), while the minimum can dip as low as -24°C (-11°F). Though precipitation is lower at 188 mm (7.4 in) over 17 days, humidity remains relatively high at 93%. For more detailed information on March weather, you can visit Haines weather in March.

August weather in Haines is notably warmer, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 27°C (80°F) and an average of 13°C (55°F). In contrast, April experiences much cooler temperatures, with a minimum of -17°C (2°F), an average of 1°C (33°F), and a maximum of 12°C (54°F). While August is characterized by higher humidity at 117% and a total precipitation of 227 mm (8.9 in) over 20 days, April sees lower humidity at 93% and 150 mm (5.9 in) of precipitation over 16 days. For a more detailed view of the conditions in April, you can check Haines weather in April.

In comparing the weather between May and August, August experiences significantly warmer temperatures, with a minimum of 4°C (40°F) and a maximum of 27°C (80°F), while May has a cooler temperature range, ranging from -7°C (21°F) to a maximum of 18°C (65°F). Precipitation is more frequent in August, with 227 mm (8.9 in) falling over 20 days, compared to 150 mm (5.9 in) over 18 days in May. Additionally, humidity peaks in August at an unusually high 117%, whereas it is more moderate at 92% in May. For more detailed information, you can visit Haines weather in May.

In comparing the weather of August and June, notable differences emerge. August typically experiences milder temperatures, with minimums around 4°C (40°F) and a comfortable average of 13°C (55°F), peaking at a maximum of 27°C (80°F). In contrast, June starts off cooler, with minimum temperatures dipping to -4°C (25°F) and an average of 10°C (51°F), although it can reach a high of 28°C (82°F).

Precipitation is significantly higher in August, with 227 mm (8.9 in) over 20 days, compared to June's 141 mm (5.6 in), also over 20 days. Humidity levels also differ, soaring to 117% in August versus June's 100%. For a detailed look at Haines in June, you can check out Haines weather in June.

In comparing the weather patterns of August and July, we observe that both months have similar average temperatures, hovering around 13°C (55°F). However, August tends to be slightly cooler with a minimum temperature of 4°C (40°F) compared to July's minimum of 6°C (43°F). Notably, August experiences a significant increase in precipitation, totaling 227 mm (8.9 in) over 20 days, whereas July sees only 109 mm (4.3 in) across 16 days. Additionally, humidity levels rise in August to 117%, compared to July's 110%. For more detailed information on July weather, check out Haines weather in July.

In comparing the weather between August and September, we observe a notable drop in temperatures. August reaches a minimum of 4°C (40°F) and averages 13°C (55°F), peaking at 27°C (80°F), while September experiences cooler conditions with a minimum of -5°C (24°F) and an average of 9°C (49°F), topping out at 23°C (73°F). Precipitation levels remain similar, with August receiving 227 mm (8.9 in) over 20 days and September slightly less at 222 mm (8.7 in) over 18 days. Additionally, humidity decreases from an unusually high 117% in August to 105% in September. For more detailed information, check out Haines weather in September.

August and October present strikingly different weather patterns. In August, temperatures range from a pleasant minimum of 4°C (40°F) to a warm average of 13°C (55°F), peaking at 27°C (80°F). However, this month also experiences significant precipitation, with 227 mm (8.9 in) falling over 20 days and a staggering humidity level of 117%. In contrast, October ushers in colder air, with temperatures plunging to a minimum of -15°C (5°F) and averaging just 1°C (35°F); the maximum reaches only 12°C (54°F). This month sees even more rain, accumulating to 318 mm (12.5 in) over 22 days, alongside a humidity level of 98%. For a closer look at October's conditions, you can check Haines weather in October.

August and November present starkly contrasting weather conditions. In August, temperatures range from a minimum of 4°C (40°F) to a pleasant maximum of 27°C (80°F), with an average of 13°C (55°F). This month also witnesses substantial rainfall, receiving 227 mm (8.9 in) over approximately 20 days, creating a humid environment with levels reaching 117%.

In contrast, November experiences much colder temperatures, with lows plummeting to -23°C (-10°F) and an average temperature of -5°C (24°F), peaking at just 6°C (42°F). Although this month sees slightly higher precipitation at 276 mm (10.9 in) over the same number of days, the overall humidity is lower at 96%. The shift from the warm and humid August to the frigid November illustrates the dramatic transition of seasons. For more detailed weather information, check out Haines weather in November.

August and December present stark contrasts in weather conditions. In August, temperatures range from a minimum of 4°C (40°F) to a maximum of 27°C (80°F), with an average of 13°C (55°F) and significant precipitation totaling 227 mm (8.9 in) over 20 days, contributing to a notably high humidity level of 117%. In contrast, December experiences a dramatic drop in temperature, with figures going as low as -22°C (-8°F) and a maximum of just 7°C (45°F), averaging -5°C (24°F). The month sees even higher precipitation levels of 363 mm (14.3 in) across 23 days, despite the lower humidity of 95%. For a deeper understanding of December weather specifics, check out Haines weather in December.

Compare Haines's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Haines

As August rolls into Haines, it marks a significant transition in the weather, showcasing warmer temperatures compared to earlier summer months, with pleasant days that can reach up to 27°C (80°F). However, the month also brings an increase in precipitation, often recording up to 20 days of rain, leading to higher humidity levels that can exceed 100%. This unique blend of milder warmth and persistent wetness differentiates August from the drier and cooler days of June and July, making it a month where nature thrives amidst the lush greenery. For a deeper understanding of Haines' climate variations throughout the year, explore Haines Climate.