April Weather in Longwood, Saint Helena, Ascension and Tristan da Cunha

Last updated: August 31, 2025

In April, the average temperature in Longwood, Saint Helena, Ascension and Tristan da Cunha is a pleasant 24°C (75°F). Expect temperatures to hover between a minimum of 22°C (72°F) and a maximum of 25°C (78°F). While you enjoy the warmth, be prepared for light showers, with an average precipitation amount of 14 mm (0.6 in) over 4 days. Don't forget to stay hydrated, as the average humidity sits at a comfortable 81%!

April Temperature in Longwood

In April in Longwood, the average temperature is 24°C (75°F). Maximums can reach up to 25°C (78°F), while minimums can dip as low as 22°C (72°F). This pleasant weather makes Longwood an ideal destination for travelers seeking a mild and enjoyable climate.

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

The chart illustrates April temperature patterns in Longwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longwood, April typically has an average temperature of 24°C (75°F), with highs reaching up to 25°C (78°F) and lows dropping to around 22°C (72°F).

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

April Precipitation in Longwood

In Longwood in April, the total precipitation amount is 14 mm (0.6 in) spread over a duration of 4 days.

April Precipitation Trends in Longwood

The chart displays monthly precipitation patterns in Longwood, 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 Longwood, April typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Longwood

In Longwood in April humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

April Average Humidity in Longwood

This chart illustrates the average monthly humidity levels in Longwood, 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 Longwood is approximately 81%, 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 Longwood

In Longwood 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 Longwood.

Maximum UV Index Levels in Longwood for April

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

Data source: Longwood 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 Longwood Compares to Other Months

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

This table compares monthly weather conditions in Longwood, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (73°F)	10 mm (0.4 inches)	79%	extreme
February Weather	24°C (75°F)	12 mm (0.5 inches)	81%	extreme
March Weather	24°C (76°F)	16 mm (0.6 inches)	82%	extreme
April Weather	24°C (75°F)	14 mm (0.6 inches)	81%	extreme
May Weather	23°C (73°F)	12 mm (0.5 inches)	78%	very high
June Weather	22°C (71°F)	14 mm (0.5 inches)	74%	very high
July Weather	21°C (69°F)	12 mm (0.5 inches)	75%	very high
August Weather	20°C (68°F)	14 mm (0.6 inches)	76%	very high
September Weather	20°C (67°F)	13 mm (0.5 inches)	78%	extreme
October Weather	19°C (67°F)	11 mm (0.4 inches)	80%	extreme
November Weather	20°C (68°F)	10 mm (0.4 inches)	81%	extreme
December Weather	21°C (70°F)	10 mm (0.4 inches)	80%	extreme