May Weather in Tillamook, United States

Last updated: February 24, 2025

In Tillamook, United States, May brings a vibrant mix of weather patterns, characterized by a maximum temperature reaching 30°C (87°F) and an average of 11°C (53°F). The month sees a minimum temperature dipping to 2°C (36°F), offering a wide range of thermal experiences. Rainfall is prevalent, accumulating to 70 mm (2.7 in) over approximately 11 days, contributing to the 83% humidity that envelops the area. This unique climate fosters the lush scenery that Tillamook is renowned for, making May a dynamic and enchanting time to explore the region.

May Temperature in Tillamook

May marks a notable transition in Tillamook, United States, as temperatures begin to rise and the chill of winter recedes. With minimums averaging 2°C (36°F) and maximums reaching a pleasant 30°C (87°F), the month offers a refreshing average of 11°C (53°F), representing a significant jump from the cooler earlier months. This increase not only signals the arrival of spring but also sets the stage for the warmer days ahead, encouraging outdoor activities and the blossoming of local flora. As the region shakes off the last remnants of frost, May becomes a delightful prelude to the sun-soaked summer months, where the temperatures will continue to climb steadily.

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

The chart illustrates May temperature patterns in Tillamook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424044485357606259514642
Data source: Temperature data for Tillamook 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 Tillamook

In May, Tillamook experiences a notable shift in precipitation patterns, with only 70 mm (2.7 in) recorded over 11 days of rain. This represents a significant decrease from the preceding months, which typically see much higher rainfall levels. As the region transitions into late spring, the reduction in both total precipitation and rainy days suggests a move towards drier weather. This trend continues into June, highlighting a seasonal change that many in Tillamook anticipate, as warmer days replace the earlier spring showers. The milder month of May offers a fresh, vibrant backdrop, paving the way for outdoor activities and showcasing the region's lush landscapes, kept vibrant by the earlier spring rains.

May Precipitation Trends in Tillamook

The chart displays monthly precipitation patterns in Tillamook, 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.
JanFebMarAprMayJunJulAugSepOctNovDec25522317315070569791160238278
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Tillamook

In May, Tillamook experiences a slight decrease in humidity, maintaining a comfortable level of 83%, consistent with the preceding months of April and June. As the spring season blossoms, this stable humidity hints at the transition towards drier summer months ahead. Interestingly, humidity levels in Tillamook are at their highest during the winter and late fall, spiking to 87% in both November and December. This creates a noticeable trend where the early part of the year tends to be much more humid, giving way to the sunnier, drier conditions of July and August, when humidity drops to 82% and even lower. Thus, May serves as a pivotal month, bridging the gap between the wet chill of winter and the warmer, more temperate days of summer.

May Average Humidity in Tillamook

This chart illustrates the average monthly humidity levels in Tillamook, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Tillamook

As spring unfolds in Tillamook, May brings a significant leap in the UV Index, soaring to 9, placing it in the very high exposure category. This increase signifies a critical shift in sun intensity compared to earlier months, where the UV Index gradually climbed from a low of 2 in January to 7 in April. With a burn time of just 15 minutes in May, it's essential for residents and visitors alike to prioritize sun safety during outdoor activities. Unlike the moderate levels seen earlier in the year, this month requires heightened vigilance to protect your skin from potential damage. As temperatures rise and sunshine becomes more prevalent, staying informed is key—check out the detailed trends and forecasts at Tillamook UV Index to help you enjoy the season safely.

Maximum UV Index Levels in Tillamook for May

The chart shows the monthly maximum UV Index (UVI) for Tillamook 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.
JanFebMarAprMayJunJulAugSepOctNovDec23579101087532
Data source: Tillamook 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 Tillamook

As spring unfolds, Tillamook's May welcomes a remarkable surge in sunshine, boasting an impressive 281 hours of bright, golden rays. This month is not just a peak in the annual cycle, but a vibrant precursor to the sunny splendor of summer. The trend is clear: after a steady rise from January's mere 86 hours, each subsequent month brings more light, culminating in the sun-drenched July, which basks in 359 hours of sunshine. May stands as a delightful transition, where blossoms flourish under increasingly radiant skies, setting the stage for the warm summer days ahead while still offering an abundance of light for outdoor adventures and coastal escapades.

Monthly Sunshine Duration in Tillamook: May Highlighted

The May sunshine duration represents the total number of hours Tillamook 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.
JanFebMarAprMayJunJulAugSepOctNovDec86h124h196h223h281h311h359h326h261h203h127h104h
Data source: Tillamook May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tillamook During May

As May arrives in Tillamook, the likelihood of enjoying sunny weather takes a noticeable dip from the preceding month, with a 28% chance of sunshine illuminating the coastal skies. This trend showcases the region's gradual transition from the wet winter months, where the sun appears only 16% of the time in January and a mere 13% in February, to a more promising spring as seen in April with a 49% chance of clear days. While May's sun probability is significantly lower than the summer months, which boast chances over 50% in June and July, it still reflects the shift towards more pleasant weather as residents and visitors alike anticipate longer, brighter days ahead.

Percentage of Sunny Days in May in Tillamook

The chart illustrates the percentage of sunny days in Tillamook 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 Tillamook experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%13%34%49%28%51%54%44%44%28%14%13%
Data source: Tillamook May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tillamook in May

As spring unfolds in Tillamook, the days grow significantly longer, with May marking a delightful peak of 14 hours of daylight. This upward trend, beginning with just 9 hours in January, showcases a steady increase throughout the months, reflecting the gradual awakening of nature. By the time May arrives, residents can bask in the extended sunshine, which brings vibrant life and energy to the coastal city. Following May, daylight continues to flourish in June and July, reaching a maximum of 15 hours. However, as summer wanes, the days start to shorten again, transitioning back to 12 hours in September and eventually down to 8 hours by December. This cyclical pattern of daylight not only enhances outdoor activities but also sets the stage for the changing seasons that define Tillamook’s unique charm.

Average Daylight Hours in Tillamook for May

The chart illustrates the variation in daylight duration in Tillamook throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 9m10h 24m11h 57m13h 33m14h 55m15h 36m15h 13m13h 59m12h 27m10h 52m9h 28m8h 45m
Data source: Tillamook daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Tillamook

In Tillamook, the May winds bring a gentle breeze, averaging 2.6 m/s (6 mph), a notable uptick from the calm of April. As spring unfolds, May’s wind speed seems to hint at the transitional nature of the season; it is the second-lowest average of the year, yet it offers a refreshing contrast to the lighter gusts experienced in April. This month typically shares subtle similarities with the early summer months, where wind speeds hover around 2.2 to 2.4 m/s, leading into June's calm. Interestingly, just as the summer approaches, the winds remain consistently mild, illustrating Tillamook's characteristic maritime climate that provides a pleasant environment for outdoor enthusiasts. Overall, May serves as a sweet spot, balancing the tranquility of spring with the emerging warmth of summer while gently nudging towards more robust gusts in the latter half of the year.

Average May Wind Speed in Tillamook

The chart displays monthly wind speed patterns in Tillamook, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.42.92.42.6 m/s2.22.42.32.43.13.53.2
Data source: Tillamook May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Tillamook Compares to Other Months

The weather in Tillamook 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 Tillamook and find detailed weather information for every month.

May and January present stark contrasts in weather. In May, temperatures range from a chilly 2°C (36°F) at night to a warm 30°C (87°F) during the day, with an average of 11°C (53°F). The month sees 70 mm (2.7 in) of precipitation over 11 days, accompanied by a humidity level of 83%. In contrast, January experiences colder conditions, with minimum temperatures dropping to -8°C (18°F) and a maximum of 15°C (60°F), averaging around 6°C (43°F). This winter month is significantly wetter, receiving 255 mm (10.0 in) of precipitation over 17 days and a slightly higher humidity of 85%. For a more detailed look at January weather patterns, you can check out Tillamook weather in January.

May and February present contrasting weather experiences. In May, temperatures range from a minimum of 2°C (36°F) to a warm maximum of 30°C (87°F), with an average of 11°C (53°F). The month sees a total precipitation of 70 mm (2.7 in) spread over 11 days, coupled with a relatively high humidity of 83%. In contrast, February experiences colder conditions with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 16°C (62°F), averaging just 5°C (41°F). Notably, February is much wetter, receiving 223 mm (8.8 in) of precipitation over 19 days, while maintaining a similar humidity level at 84%. For more details, you can visit Tillamook weather in February.

When comparing the weather in May and March, there are noticeable differences in temperature and precipitation. May generally offers a more temperate climate, with minimum temperatures around 2°C (36°F) and an average of 11°C (53°F), peaking at a warm 30°C (87°F). In contrast, March starts off cooler, with minimum temperatures reaching down to -3°C (27°F) and an average of 6°C (44°F), although it can still rise to a maximum of 23°C (73°F).

Additionally, March is significantly wetter, receiving 173 mm (6.8 in) of precipitation over 18 days, compared to May's 70 mm (2.7 in) over just 11 days. The humidity levels are quite similar, hovering around 83% in May and slightly higher at 85% in March. For a closer look at how the weather varies during this time, check out Tillamook weather in March.

In comparing the weather between April and May, we see a significant warming trend as spring progresses. May enjoys a broader temperature range with minimums around 2°C (36°F) and maximums reaching up to 30°C (87°F), whereas April's temperatures dip as low as -1°C (30°F) with a maximum of 26°C (79°F). Precipitation also varies notably; April experiences more rainfall, totaling 150 mm (5.9 in) over 15 days compared to May's 70 mm (2.7 in) across 11 days. Both months share the same humidity level of 83%, but the conditions in May generally provide a more pleasant atmosphere. For a closer look at specific conditions in April, you can check Tillamook weather in April.

May and June exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (87°F), with an average of 11°C (53°F). The month experiences approximately 70 mm (2.7 in) of precipitation over 11 days, maintaining a humidity level of 83%. In contrast, June sees a slightly higher minimum temperature of 5°C (41°F) and a significantly increased maximum temperature of 40°C (104°F), with an average of 14°C (58°F). This month is drier, with only 56 mm (2.2 in) of precipitation over 8 days, while humidity remains consistent at 83%. For more detailed weather comparisons, you can visit Tillamook weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly 2°C (36°F) to a warm 30°C (87°F), with an average of 11°C (53°F) and significant precipitation of 70 mm (2.7 in) over 11 days, contributing to a relatively high humidity of 83%. In contrast, July offers a more consistent warmth, featuring temperatures from a minimum of 7°C (45°F) to a maximum of 34°C (93°F) and an average of 16°C (61°F). This month sees much less rain, with only 9 mm (0.4 in) over just 2 days, while humidity remains similar at 82%. For more detailed information on July weather, visit Tillamook weather in July.

May and August present distinct weather patterns. In May, temperatures range from a chilly minimum of 2°C (36°F) to a pleasant maximum of 30°C (87°F), with an average temperature of 11°C (53°F). This month is relatively wet, with 70 mm (2.7 in) of precipitation over 11 days and high humidity at 83%. In contrast, August offers warmer conditions, with temperatures starting at a minimum of 8°C (46°F) and peaking at 37°C (99°F), leading to a higher average temperature of 17°C (62°F). This summer month experiences significantly less rain, only 7 mm (0.3 in) over just 2 days, and lower humidity of 74%. For more specifics on August weather in Tillamook, check out Tillamook weather in August.

May and September present contrasting weather patterns as spring transitions to fall. In May, temperatures range from a minimum of 2°C (36°F) to a max of 30°C (87°F), with an average of 11°C (53°F). The month experiences considerable precipitation, totaling 70 mm (2.7 in) over 11 days, and the humidity is relatively high at 83%. Conversely, September sees slightly warmer temperatures, with a minimum of 4°C (40°F), an average of 15°C (59°F), and a peak of 33°C (92°F). While it experiences a bit more precipitation at 91 mm (3.6 in) over just 8 days, the humidity drops to 71%. For a deeper understanding of what to expect, check out the detailed forecast at Tillamook weather in September.

May and October present quite different weather patterns. In May, temperatures range from a cool 2°C (36°F) at night to a warm 30°C (87°F) during the day, with an average of 11°C (53°F). Despite its milder temperatures, May experiences about 70 mm (2.7 in) of precipitation over 11 days and has a higher humidity level of 83%. In contrast, October sees a drop in nighttime temperatures, dipping to -1°C (31°F), with daytime highs reaching 24°C (76°F), while maintaining the same average of 11°C (51°F). October is significantly wetter, with 160 mm (6.3 in) of rainfall over 13 days, and slightly lower humidity at 81%. For more details on October weather conditions, check out Tillamook weather in October.

May and November present contrasting weather patterns in terms of temperature and precipitation. In May, temperatures range from a chilly 2°C (36°F) to a warm 30°C (87°F), making for an average of 11°C (53°F), while November experiences a broader range from a low of -4°C (25°F) to a milder maximum of 18°C (64°F) with an average temperature of 8°C (46°F). Precipitation also varies significantly; May sees about 70 mm (2.7 in) over 11 days, whereas November has much higher rainfall at 238 mm (9.4 in) spread over 18 days. Additionally, November's humidity reaches 87%, slightly higher than May’s 83%. For a detailed overview of November weather, you can visit Tillamook weather in November.

May and December offer contrasting weather experiences. In May, temperatures generally range from a minimum of 2°C (36°F) to a maximum of 30°C (87°F), averaging around 11°C (53°F), with relatively low precipitation of 70 mm (2.7 in) over about 11 days. The humidity during this month is comfortable at 83%. In contrast, December is much colder, with temperatures dropping to a minimum of -8°C (18°F) and culminating at a maximum of 13°C (56°F), averaging 5°C (42°F). This month sees significantly higher precipitation of 278 mm (11.0 in) over 21 days, accompanied by slightly higher humidity levels at 87%. For more details on December weather specifics, visit Tillamook weather in December.

Compare Tillamook's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Tillamook

As May unfolds in Tillamook, the weather begins to transition into the more temperate patterns of late spring. With a pleasant average temperature creeping up, the days become noticeably warmer, although it’s not uncommon to experience cool mornings and evenings. The region receives a fair amount of rain, with about eleven days of precipitation contributing to its lush, green landscapes. The humidity levels remain high, creating a moist atmosphere that contrasts sharply with the drier summer months ahead. For those interested in a deeper dive into Tillamook’s overall climate trends, visit Tillamook Climate.