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

Last updated: August 31, 2025

In April, the average temperature in Georgetown, Saint Helena, Ascension and Tristan da Cunha hovers around a pleasant 27°C (81°F). Expect a minimum of 25°C (77°F) and a maximum of 28°C (83°F), creating a comfortable climate for outdoor activities. However, be prepared for a bit of moisture, as 21 mm (0.8 in) of precipitation can fall over 7 days, paired with an average humidity of 80%.

April Temperature in Georgetown

In April in Georgetown, the average temperature is 27°C (81°F). Maximums can reach 28°C (83°F) and minimums can be as low as 25°C (77°F). This pleasant climate makes it an ideal time to explore the outdoors and enjoy various activities in Georgetown.

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

The chart illustrates April temperature patterns in Georgetown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Georgetown, April typically has an average temperature of 27°C (81°F), with highs reaching up to 28°C (83°F) and lows dropping to around 25°C (77°F).

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

April Precipitation in Georgetown

In Georgetown in April, the precipitation amount is 21 mm (0.8 in) over the course of 7 days.

April Precipitation Trends in Georgetown

The chart displays monthly precipitation patterns in Georgetown, 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 Georgetown, April typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 7 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 Georgetown

In Georgetown in April humidity is 80%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making travel tiring as sweat beads form quickly and the air feels thick and heavy.

April Average Humidity in Georgetown

This chart illustrates the average monthly humidity levels in Georgetown, 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 Georgetown is approximately 80%, 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 Georgetown

In Georgetown in April, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Georgetown.

Maximum UV Index Levels in Georgetown for April

The chart shows the monthly maximum UV Index (UVI) for Georgetown 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 Georgetown typically reaches 13, which falls under the extreme exposure category.

Data source: Georgetown 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 Georgetown Compares to Other Months

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

This table compares monthly weather conditions in Georgetown, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	9 mm (0.3 inches)	82%	extreme
February Weather	26°C (79°F)	15 mm (0.6 inches)	80%	extreme
March Weather	27°C (80°F)	16 mm (0.6 inches)	79%	extreme
April Weather	27°C (81°F)	21 mm (0.8 inches)	80%	extreme
May Weather	26°C (80°F)	14 mm (0.6 inches)	85%	extreme
June Weather	26°C (78°F)	14 mm (0.6 inches)	81%	very high
July Weather	25°C (77°F)	17 mm (0.7 inches)	79%	very high
August Weather	24°C (75°F)	19 mm (0.8 inches)	79%	extreme
September Weather	24°C (75°F)	19 mm (0.7 inches)	80%	extreme
October Weather	24°C (75°F)	15 mm (0.6 inches)	80%	extreme
November Weather	24°C (76°F)	11 mm (0.4 inches)	80%	extreme
December Weather	24°C (76°F)	12 mm (0.5 inches)	80%	extreme