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April Weather in Bellevue, United States

Last updated: June 24, 2025

In April, the average temperature in Bellevue, United States hovers around 10°C (50°F). Expect a range where the minimum can dip to 1°C (34°F), while the maximum can reach up to 24°C (75°F). Be prepared for 117 mm (4.6 in) of precipitation over 14 days, contributing to an average humidity level of 84%.

April Temperature in Bellevue

In April in Bellevue, the average temperature is 10°C (50°F), with maximums reaching 24°C (75°F) and minimums dropping as low as 1°C (34°F). This mild temperature range makes it a great time to explore Bellevue comfortably.

April Weather in Bellevue: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Bellevue, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bellevue, April typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (75°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec424145505762666762524742
Data source: Temperature data for Bellevue 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.

April Precipitation in Bellevue

In Bellevue in April, the precipitation amount is 117 mm (4.6 in) spread over 14 days.

April Precipitation Trends in Bellevue

The chart displays monthly precipitation patterns in Bellevue, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Bellevue, April typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec17517712611768631916100155181196
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Bellevue

In Bellevue in April, humidity is 84%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and prompting travelers to seek refuge in cozy, warm cafes or indoor attractions.

April Average Humidity in Bellevue

This chart illustrates the average monthly humidity levels in Bellevue, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Bellevue is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Bellevue

In Bellevue in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bellevue, you can refer to this Hourly UV Index in Bellevue.

Maximum UV Index Levels in Bellevue for April

The chart shows the monthly maximum UV Index (UVI) for Bellevue in April, 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 April, the maximum UV index in Bellevue typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Bellevue April 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 April Weather in Bellevue Compares to Other Months

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

This table compares monthly weather conditions in Bellevue, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)175 mm (6.9 inches)86%low
February Weather5°C (41°F)177 mm (7.0 inches)86%moderate
March Weather7°C (46°F)126 mm (4.9 inches)87%moderate
April Weather10°C (50°F)117 mm (4.6 inches)84%high
May Weather14°C (57°F)68 mm (2.7 inches)81%very high
June Weather17°C (62°F)63 mm (2.5 inches)82%very high
July Weather19°C (67°F)18 mm (0.7 inches)79%very high
August Weather19°C (67°F)16 mm (0.6 inches)63%very high
September Weather16°C (62°F)100 mm (3.9 inches)62%high
October Weather11°C (52°F)155 mm (6.1 inches)83%moderate
November Weather8°C (47°F)181 mm (7.1 inches)89%low
December Weather6°C (42°F)196 mm (7.7 inches)88%low

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