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May Weather in Seward, United States

Last updated: June 24, 2025

In May, the average temperature in Seward, United States is a comfortable 17°C (63°F). This period can bring a range of temperatures, with minimums dipping to 2°C (35°F) and soaring to a maximum of 38°C (100°F). Be prepared for 144 mm (5.7 in) of precipitation spread over approximately 13 days, contributing to an average humidity of 78%. Enjoy the diverse climate that Seward has to offer!

May Temperature in Seward

In May in Seward, the average temperature is 17°C (63°F), with maximums that can reach up to 38°C (100°F) and minimums that can drop as low as 2°C (35°F). When traveling during this time, be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Seward, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seward, May typically has an average temperature of 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec262641506376797570534132
Data source: Temperature data for Seward 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 Seward

In Seward in May, the precipitation amount is 144 mm (5.7 in) spread over 13 days.

May Precipitation Trends in Seward

The chart displays monthly precipitation patterns in Seward, 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. In Seward, May typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec322696491441086991731102741
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Seward

In Seward in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

May Average Humidity in Seward

This chart illustrates the average monthly humidity levels in Seward, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Seward is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Seward

In Seward in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Seward.

Maximum UV Index Levels in Seward for May

The chart shows the monthly maximum UV Index (UVI) for Seward 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. In May, the maximum UV index in Seward typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Seward 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.

How May Weather in Seward Compares to Other Months

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

This table compares monthly weather conditions in Seward, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)32 mm (1.3 inches)76%moderate
February Weather-3°C (26°F)26 mm (1.0 inches)80%moderate
March Weather5°C (42°F)95 mm (3.8 inches)73%high
April Weather10°C (51°F)49 mm (1.9 inches)74%very high
May Weather17°C (63°F)144 mm (5.7 inches)78%very high
June Weather25°C (77°F)108 mm (4.2 inches)82%very high
July Weather26°C (79°F)69 mm (2.7 inches)83%very high
August Weather24°C (75°F)91 mm (3.6 inches)80%very high
September Weather21°C (70°F)73 mm (2.9 inches)75%very high
October Weather11°C (53°F)110 mm (4.3 inches)75%high
November Weather5°C (41°F)27 mm (1.1 inches)82%moderate
December Weather0°C (32°F)41 mm (1.6 inches)83%low

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