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April Weather in Waterville, United States

Last updated: June 24, 2025

In April, the average temperature in Waterville, United States hovers around 8°C (47°F). Expect a chilly minimum of -4°C (25°F) and a warm maximum reaching 25°C (76°F). Rainfall is moderate, with an average precipitation of 36 mm (1.4 in) spread over about 6 days. Humidity lingers at a high 84%, creating a distinctly crisp atmosphere.

April Temperature in Waterville

In April in Waterville, the average temperature is 8°C (47°F). Maximum can reach 25°C (76°F) and minimum can be as low as -4°C (25°F). Travelers should be prepared for a range of weather conditions, from mild days to chilly nights.

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

The chart illustrates April temperature patterns in Waterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waterville, April typically has an average temperature of 8°C (47°F), with highs reaching up to 25°C (76°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec282938465764727161463729
Data source: Temperature data for Waterville 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 Waterville

In Waterville in April, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

April Precipitation Trends in Waterville

The chart displays monthly precipitation patterns in Waterville, 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 Waterville, April typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec766241362292523485770
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Waterville

In Waterville in April, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

April Average Humidity in Waterville

This chart illustrates the average monthly humidity levels in Waterville, 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 Waterville 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 Waterville

In Waterville 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 Waterville, you can refer to this Hourly UV Index in Waterville.

Maximum UV Index Levels in Waterville for April

The chart shows the monthly maximum UV Index (UVI) for Waterville 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 Waterville typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2456891097532
Data source: Waterville 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 Waterville Compares to Other Months

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

This table compares monthly weather conditions in Waterville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)76 mm (3.0 inches)86%low
February Weather-2°C (29°F)62 mm (2.4 inches)86%moderate
March Weather3°C (38°F)41 mm (1.6 inches)87%moderate
April Weather8°C (47°F)36 mm (1.4 inches)84%high
May Weather14°C (58°F)22 mm (0.9 inches)81%very high
June Weather18°C (65°F)9 mm (0.4 inches)82%very high
July Weather22°C (72°F)2 mm (0.1 inches)79%very high
August Weather22°C (71°F)4 mm (0.2 inches)63%very high
September Weather16°C (61°F)23 mm (0.9 inches)62%high
October Weather8°C (47°F)48 mm (1.9 inches)83%moderate
November Weather3°C (37°F)57 mm (2.2 inches)89%moderate
December Weather-2°C (29°F)70 mm (2.8 inches)88%low

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