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April Weather in Simpsonville, United States

Last updated: June 24, 2025

In April, the average temperature in Simpsonville, United States hovers around 13°C (56°F). While the mercury can dip to a chilly -3°C (27°F), it can also reach a pleasant 29°C (85°F). Expect around 145 mm (5.7 in) of precipitation over 13 days, contributing to an average humidity level of 84%.

April Temperature in Simpsonville

In April in Simpsonville, the average temperature is 13°C (56°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as -3°C (27°F). It's advisable to dress in layers to prepare for the varying temperatures during your travels.

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

The chart illustrates April temperature patterns in Simpsonville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Simpsonville, April typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec353947556774787671604541
Data source: Temperature data for Simpsonville 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 Simpsonville

In Simpsonville in April, the precipitation amount is 145 mm (5.7 in) over the course of 13 days.

April Precipitation Trends in Simpsonville

The chart displays monthly precipitation patterns in Simpsonville, 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 Simpsonville, April typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9114014114612516810410012310790116
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Simpsonville

In Simpsonville in April, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.

April Average Humidity in Simpsonville

This chart illustrates the average monthly humidity levels in Simpsonville, 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 Simpsonville is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Simpsonville

In Simpsonville in April, 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 Simpsonville.

Maximum UV Index Levels in Simpsonville for April

The chart shows the monthly maximum UV Index (UVI) for Simpsonville 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 Simpsonville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108743
Data source: Simpsonville 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 Simpsonville Compares to Other Months

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

This table compares monthly weather conditions in Simpsonville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)91 mm (3.6 inches)87%moderate
February Weather4°C (40°F)140 mm (5.5 inches)85%moderate
March Weather9°C (48°F)141 mm (5.6 inches)86%high
April Weather13°C (56°F)145 mm (5.7 inches)84%very high
May Weather19°C (67°F)125 mm (4.9 inches)79%very high
June Weather23°C (74°F)168 mm (6.6 inches)82%very high
July Weather25°C (78°F)104 mm (4.1 inches)79%very high
August Weather24°C (76°F)100 mm (3.9 inches)70%very high
September Weather22°C (71°F)123 mm (4.8 inches)69%very high
October Weather16°C (60°F)107 mm (4.2 inches)76%high
November Weather7°C (45°F)90 mm (3.5 inches)88%moderate
December Weather5°C (41°F)116 mm (4.6 inches)87%moderate

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