July weather forecast
Ascension Island, Saint Helena, Ascension and Tristan da Cunha

July marks the transition into cooler, more temperate days on Ascension Island. Temperatures drop to an agreeable 29°C (84.2°F) at their peak and nights become cooler. The humidity hovers fairly steadily, providing comfort during outdoor activities. Moderate rainfall combined with warm sunshine presents ideal conditions for nature exploration. Weather in August closely mirrors that of July, both in terms of temperature and rainfall.

Temperature

The onset of July in Ascension Island manifests an average high-temperature of a warm 29°C (84.2°F), demonstrating a minor variation from the preceding month. July nights experience a consistent temperature drop to an agreeable 22°C (71.6°F).

Heat index

The heat index for July is calculated to be a tropical 32°C (89.6°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

July is the least humid month in Ascension Island, Saint Helena, Ascension and Tristan da Cunha, with an average relative humidity of 67%.

Rainfall

In Ascension Island, during July, the rain falls for 3 days and regularly aggregates up to 12mm (0.47") of precipitation. In Ascension Island, during the entire year, the rain falls for 30 days and collects up to 142mm (5.59") of precipitation.

Sea temperature

In Ascension Island, Saint Helena, Ascension and Tristan da Cunha, in July, the average water temperature is 26°C (78.8°F).
Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In Ascension Island, Saint Helena, Ascension and Tristan da Cunha, the average length of the day in July is 11h and 43min.
On the first day of July, sunrise is at 07:11 and sunset at 18:51. On the last day of the month, sunrise is at 07:10 and sunset at 18:56 GMT.

Sunshine

In July, the average sunshine in Ascension Island, Saint Helena, Ascension and Tristan da Cunha, is 7.7h.

UV index

June and July, with an average maximum UV index of 9, are months with the lowest UV index. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 9 in July suggests the following recommendations:
Act with caution. Neglecting protection can lead to skin and eye damage in moments. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Even if the day is cloudy, sunscreen with SPF of at least 30 should be applied generously and reapplied often, particularly after swimming or outdoor exercise. Take caution! The UV rays from the Sun gain strength from sand and water reflections.