April Weather in South Bay, United States

Last updated: June 24, 2025

In April, the average temperature in South Bay, United States hovers around 25°C (76°F), creating a pleasant climate for outdoor activities. You can expect temperatures to vary, with a minimum of 15°C (59°F) and a maximum of 32°C (91°F). However, be prepared for occasional rain, as 53 mm (2.1 in) of precipitation is expected over approximately 7 days, contributing to an average humidity of 68%. Enjoy your stay!

April Temperature in South Bay

In April in South Bay, the average temperature is 25°C (76°F). Maximums can reach 32°C (91°F), and minimums can be as low as 15°C (59°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the area.

April Weather in South Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in South Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Bay, April typically has an average temperature of 25°C (76°F), with highs reaching up to 32°C (91°F) and lows dropping to around 15°C (59°F).

Data source: Temperature data for South Bay generated using information from the Copernicus Climate Change Service.

April Precipitation in South Bay

In South Bay in April, the total precipitation amount is 53 mm (2.1 in) spread over a period of 7 days.

April Precipitation Trends in South Bay

The chart displays monthly precipitation patterns in South Bay, 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 South Bay, April typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in South Bay

In South Bay in April, humidity is 68%. With an average temperature of 25°C (76°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sweaty, prompting frequent breaks in the shade and an appreciation for refreshing drinks.

April Average Humidity in South Bay

This chart illustrates the average monthly humidity levels in South Bay, 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 South Bay is approximately 68%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in South Bay

In South Bay in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in South Bay.

Maximum UV Index Levels in South Bay for April

The chart shows the monthly maximum UV Index (UVI) for South Bay 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 South Bay typically reaches 12, which falls under the extreme exposure category.

Data source: South Bay 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 South Bay Compares to Other Months

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

This table compares monthly weather conditions in South Bay, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	39 mm (1.5 inches)	83%	high
February Weather	21°C (71°F)	40 mm (1.6 inches)	80%	very high
March Weather	22°C (72°F)	26 mm (1.0 inches)	75%	very high
April Weather	25°C (76°F)	53 mm (2.1 inches)	68%	extreme
May Weather	26°C (79°F)	138 mm (5.4 inches)	65%	extreme
June Weather	27°C (81°F)	192 mm (7.6 inches)	73%	extreme
July Weather	28°C (82°F)	166 mm (6.5 inches)	77%	extreme
August Weather	28°C (82°F)	200 mm (7.9 inches)	80%	extreme
September Weather	27°C (82°F)	161 mm (6.3 inches)	83%	extreme
October Weather	26°C (80°F)	123 mm (4.8 inches)	83%	very high
November Weather	23°C (74°F)	49 mm (1.9 inches)	83%	high
December Weather	20°C (69°F)	40 mm (1.6 inches)	84%	moderate