May Weather in Haines, United States

Last updated: February 24, 2025

In Haines, United States, May unveils a vibrant yet variable climate, characterized by a maximum temperature reaching a pleasant 18°C (65°F) and an average of 5°C (41°F). However, the month can start with a chill, dipping to a minimum of -7°C (21°F) at times. Rainfall is a notable aspect, with 150 mm (5.9 in) accumulated over 18 days, contributing to a humid atmosphere that hovers around 92%. Visitors can expect a refreshing mix of cool temperatures and wet days, ideal for those who appreciate the allure of springtime in this picturesque coastal town.

May Temperature in Haines

In Haines, Alaska, May brings a refreshing transition from the harsh winter chill to more temperate conditions. With a minimum temperature of -7°C (21°F) and an average low of 5°C (41°F), the month marks a significant warming trend compared to the preceding months. The temperatures peak at an inviting 18°C (65°F), offering residents and visitors a taste of the approaching summer. This shift not only enhances outdoor recreational opportunities but also showcases the stunning natural beauty of the region as landscapes burst into bloom. As daylight extends, the pleasant weather encourages a vibrant atmosphere, making May a beautiful time to experience Haines' unique charm.

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

The chart illustrates May 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.

May Precipitation in Haines

In Haines, United States, May brings a consistent precipitation level of 150 mm (5.9 in), mirroring the amount seen in April. This month sees an uptick in rainy days, averaging 18 days, hinting at a shift towards the wetter months ahead. Interestingly, despite the similar rainfall volume, May's precipitation is marked by more frequent showers compared to the preceding month, suggesting a transitional phase into the lushness of late spring. As the region moves into June, it will remain interesting to observe if this pattern of consistent, moderate rainfall continues or if the early summer will bring drier conditions, as hinted by the dip in precipitation in July.

May Precipitation Trends in Haines

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

In Haines, United States, the month of May brings a slight dip in humidity levels, with an average of 92%. This is a continuation of the consistently high humidity experienced from January through April, where readings remained above 90%. The trend is set to escalate dramatically in the following months, as humidity peaks in June at 100% and continues to rise through the summer, reaching an astonishing 117% in August. The transitional period of late spring into summer highlights Haines' unique climate, where moisture is a defining characteristic throughout the year, culminating in notably humid summers. As the seasons progress, residents and visitors alike can expect a palpable increase in moisture, creating a lush, vibrant environment.

May Average Humidity in Haines

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

May UV Index in Haines

As May arrives in Haines, the UV Index climbs to 7, signaling a shift to the high exposure category. This rise indicates a significant change from the earlier months, where the index hovered between 1 and 5. With a burn time of just 25 minutes, it emphasizes the need for sun protection as outdoor activities become more frequent. Following May, June through August maintain this high UV Index, reinforcing the importance of safeguarding against UV radiation during the summer months. As fall approaches, the UV Index tapers off again, returning to lower levels by September. For more details on Haines UV levels throughout the year, visit Haines UV Index.

Maximum UV Index Levels in Haines for May

The chart shows the monthly maximum UV Index (UVI) for Haines in May, 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 May 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.

May Sunshine in Haines

May brings a delightful peak in sunshine to Haines, United States, with 248 hours of radiant daylight, making it one of the sunniest months of the year. As winter fades away, the transition from January's meager 43 hours to May's vibrant glow reflects a steady increase in daylight hours, culminating in a warm embrace of sunshine just before summer. Following May, June and July maintain this brightness, with 246 and 247 hours respectively, creating a sun-soaked atmosphere perfect for outdoor adventures. However, as summer wanes into the fall months, the daylight begins to taper off, echoing the cyclical nature of seasons in Haines. This trend not only highlights the approach of winter but also invites residents and visitors alike to relish the lush and lively days of May, where longer hours of sunlight foster a spirit of renewal and activity.

Monthly Sunshine Duration in Haines: May Highlighted

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

Chance of Sun in Haines During May

When it comes to basking in sunlight, May in Haines, United States, presents a notable dip in the likelihood of sunny weather, with only a 9% chance of clear skies. This marks a striking contrast to the more promising months of February and April, which boast probabilities of 42% and 39% respectively. Following the relatively bright days of spring, May leads into a summer pattern where the chances of sunshine remain modest, hovering around 20% in both June and July. Overall, while Haines showcases a few months with decent sunshine potential, May’s gloomy statistics remind us that the region is often cloaked in clouds as spring transitions toward summer.

Percentage of Sunny Days in May in Haines

The chart illustrates the percentage of sunny days in Haines throughout the year, with May 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 May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Haines in May

In Haines, United States, daylight duration experiences a remarkable transformation throughout the year. Beginning with only 7 hours of daylight in January, the days gradually lengthen, hitting 9 hours in February. As spring unfolds, daylight surges to 11 hours in March and 14 hours in April, hinting at the vibrant warmth to come. By May, residents bask in an impressive 17 hours of daylight, making it a peak month for outdoor activities. The longest days arrive in June, featuring a spectacular 18 hours of sunlight, before gradually tapering off through the summer. Following this high, July retains 17 hours, while August sees a slight decrease to 15 hours. As autumn sets in, daylight diminishes more rapidly, dropping to 12 hours in September and 10 hours by October. Finally, the cycle returns, with daylight dwindling to 7 hours in November and a mere 6 hours in December, marking the return to winter's embrace. This rhythm of light and dark paints a vivid picture of Haines' seasonal shifts, inviting exploration and appreciation of both the long summer days and the serene winter nights.

Average Daylight Hours in Haines for May

The chart illustrates the variation in daylight duration in Haines throughout the year, with May 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.

May Winds in Haines

In Haines, United States, the month of May ushers in a gentle breeze, with an average wind speed of 1.1 m/s (2 mph), marking one of the calmer periods of the year. This slight dip follows a slow yet steady decline in wind speeds since January, where winds were more pronounced at 1.2 m/s (3 mph). As spring transitions into summer, we begin to see a gradual increase in wind speeds, which typically peaks in August at 1.7 m/s (4 mph). The overall trend reveals Haines' wind conditions are generally mild, with the month of May being a serene time, perfectly capturing the tranquil essence of early summer in this picturesque Alaskan town.

Average May Wind Speed in Haines

The chart displays monthly wind speed patterns in Haines, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.21.31.21.11.1 m/s1.31.41.71.51.11.21.2
Data source: Haines May wind data, generated using information from the Copernicus Climate Change Service.

How May 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 May'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.

In comparing the weather of May and January, we observe a significant contrast in temperatures and overall conditions. May experiences milder temperatures, ranging from a minimum of -7°C (21°F) to a maximum of 18°C (65°F), with an average temperature of 5°C (41°F). Meanwhile, January is much colder, with temperatures dipping as low as -28°C (-19°F) and averaging -7°C (20°F). Both months see considerable precipitation, but January totals 249 mm (9.8 in) over 16 days, compared to May's 150 mm (5.9 in) over 18 days. Humidity levels are slightly higher in January at 94%, compared to 92% in May. For more detailed information about January weather, you can visit Haines weather in January.

May and February exhibit stark contrasts in their weather conditions, reflecting the transition from winter to spring. In February, temperatures can plummet to a chilling minimum of -30°C (-22°F), with an average of -9°C (17°F) and a maximum that barely reaches 5°C (42°F). In contrast, May brings a significant warming, with temperatures ranging from a minimum of -7°C (21°F) to a comfortable maximum of 18°C (65°F).

Precipitation levels are somewhat similar, with February recording 161 mm (6.3 in) over 12 days, while May sees 150 mm (5.9 in) spread across 18 days. Interestingly, humidity remains high in both months, with February at 90% and May slightly higher at 92%. For more details on February weather conditions, visit Haines weather in February.

When comparing the weather in March and May, a stark contrast emerges. March experiences much colder temperatures, with minimums dropping to -24°C (-11°F) and an average of -4°C (25°F), while May sees a more moderate range with temperatures starting from -7°C (21°F) and peaking at a comfortable 18°C (65°F). Precipitation is more abundant in March, totaling 188 mm (7.4 in) over 17 days compared to May's 150 mm (5.9 in) over 18 days. Humidity remains high in both months, with March slightly higher at 93% compared to May's 92%. For a detailed look at March weather specifics, you can refer to Haines weather in March.

Compared to April, May experiences a significant rise in temperatures, with minimums of -7°C and a maximum of 18°C, compared to April's colder range from -17°C to 12°C. The average temperature in May is also higher at 5°C, while April's average lingers at 1°C. Both months receive the same amount of precipitation at 150 mm over similar durations—18 days in May and 16 days in April; however, May's humidity slightly decreases to 92% from April's 93%. For more detailed insights into April's weather, you can check Haines weather in April.

In comparing the weather of May and June, May tends to be cooler, with average temperatures ranging from a low of -7°C (21°F) to a high of 18°C (65°F), while June experiences warmer temperatures, with a minimum of -4°C (25°F) and a maximum of 28°C (82°F). Despite slightly lower precipitation levels in June at 141 mm (5.6 in), it still sees more rainy days, totaling 20, compared to May’s 18 days of rain. Notably, June experiences higher humidity, reaching 100%, compared to May's 92%. For more detailed information on June weather, you can check Haines weather in June.

The weather in May and July presents a stark contrast, with May experiencing cooler temperatures, ranging from a minimum of -7°C (21°F) to a maximum of 18°C (65°F), and an average of 5°C (41°F). In addition, May sees significant precipitation, totaling 150 mm (5.9 in) across 18 days, coupled with high humidity levels at 92%. Conversely, July offers a warmer and more pleasant climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (81°F) and an average of 13°C (56°F). Although July has slightly less rainfall at 109 mm (4.3 in) over 16 days and a higher humidity level of 110%, it is generally considered a more comfortable month. For those interested in exploring specific July conditions, more information can be found at Haines weather in July.

May and August offer distinctly different weather experiences. In May, temperatures range from a chilly -7°C (21°F) at night to a comfortable 18°C (65°F) during the day, with an average of 5°C (41°F). Precipitation is relatively high at 150 mm (5.9 in) over 18 days, contributing to a humid environment with a humidity level of 92%. Conversely, August sees warmer temperatures, with lows of 4°C (40°F) and highs reaching 27°C (80°F), averaging at 13°C (55°F). This month also experiences increased rainfall, totaling 227 mm (8.9 in) on about 20 days, and a remarkable humidity level of 117%. For a more detailed look at the weather patterns in August, you can check Haines weather in August.

In May, temperatures typically range from a minimum of -7°C (21°F) to a maximum of 18°C (65°F), with an average temperature of 5°C (41°F). The month sees about 150 mm (5.9 in) of precipitation over 18 days, paired with high humidity levels reaching 92%. By contrast, September offers slightly milder weather, with temperatures ranging from -5°C (24°F) at their lowest to 23°C (73°F) at their highest, and an average of 9°C (49°F). However, September experiences more significant rainfall, totaling 222 mm (8.7 in) also over 18 days and an even higher humidity at 105%. For a more in-depth look at September weather specifically, check out Haines weather in September.

May and October present contrasting weather conditions that illustrate the transition from spring to autumn. In May, temperatures range from a chilly minimum of -7°C (21°F) to a milder maximum of 18°C (65°F), with an average temperature of 5°C (41°F). The month experiences significant rainfall, totaling 150 mm (5.9 in) over 18 days, with humidity levels around 92%.

Conversely, October brings colder temperatures, with a minimum of -15°C (5°F) and an average of just 1°C (35°F), peaking at a maximum of 12°C (54°F). The month is notably wetter, receiving 318 mm (12.5 in) of precipitation over 22 days, and humidity increases to a high of 98%. These differences highlight October's stark chill and increased moisture compared to May's gradual warming and moderate rain. For a closer look at October weather specifics, you can visit Haines weather in October.

May and November present contrasting weather conditions. In May, temperatures range from a chilly minimum of -7°C (21°F) to a pleasant maximum of 18°C (65°F), with an average temperature of 5°C (41°F). The month sees about 150 mm (5.9 in) of precipitation over 18 days, and humidity levels are relatively high at 92%. In stark contrast, November experiences much colder temperatures, with a minimum of -23°C (-10°F) and an average temperature of -5°C (24°F), peaking at a maximum of 6°C (42°F). Additionally, November is wetter, with 276 mm (10.9 in) of precipitation occurring over 20 days, and humidity levels rise to 96%. For more details on November weather, check out Haines weather in November.

In comparing the weather between May and December, it's evident that December is significantly colder and wetter. While May sees temperatures ranging from a chilly -7°C (21°F) to a mild 18°C (65°F) with an average of 5°C (41°F), December's temperatures plummet to a minimum of -22°C (-8°F) and cap at just 7°C (45°F), averaging -5°C (24°F). Moreover, December experiences higher precipitation levels, with 363 mm (14.3 in) falling over 23 days compared to May's 150 mm (5.9 in) across 18 days. Humidity levels are also slightly higher in December at 95% against May’s 92%. For a more detailed understanding of weather patterns, check out Haines weather in December.

Compare Haines's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Haines

As May unfolds in Haines, residents and visitors experience a marked transition from the chill of winter to the budding warmth of spring. The arrival of milder temperatures invites outdoor exploration, yet the lingering cold can still surprise, especially during the nights. With an average humidity of 92%, the air feels particularly fresh, though the 18 days of precipitation remind us that rain is a common companion this month. This unique blend of conditions sets May apart from other months, laying the groundwork for the vibrant summer to follow. For a deeper dive into what to expect throughout the year, explore Haines Climate.