Cat Hill weather by month & the best time to visit
St. Helena · beach resort · hot desert climate
The best time to visit Cat Hill is January — its sunniest month (Sunshine Score 97/100), with February and September close behind. Cat Hill averages about 3,078 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 4 mm of rain in January.
When is the best time to visit Cat Hill?
For sunshine, the best time to visit Cat Hill is January, then February and September. The dullest month is March (95/100, 10 mm of rain). The full month-by-month picture is in the table below.
How sunny is Cat Hill?
Cat Hill is one of the sunniest places on Earth: about 3,078 hours of sunshine a year. Conditions barely change through the year — only 2 Sunshine Score points separate January from March. It is the only destination Sunshine Atlas tracks in St. Helena. Rain is a non-event in Cat Hill — about 73 mm in a typical year.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 97 | 25° / 77°F | 25° / 77°F | 4 mm | 12 | 27° / 81°F |
| February | 97 | 26° / 79°F | 26° / 79°F | 4 mm | 13 | 28° / 82°F |
| March | 95 | 27° / 81°F | 26° / 79°F | 10 mm | 13 | 29° / 84°F |
| April | 95 | 27° / 81°F | 27° / 81°F | 12 mm | 12 | 29° / 84°F |
| May | 96 | 27° / 81°F | 26° / 79°F | 8 mm | 10 | 29° / 84°F |
| June | 96 | 26° / 79°F | 25° / 77°F | 5 mm | 9 | 28° / 82°F |
| July | 96 | 25° / 77°F | 24° / 75°F | 7 mm | 9 | 26° / 79°F |
| August | 96 | 24° / 75°F | 23° / 73°F | 5 mm | 9 | 25° / 77°F |
| September | 97 | 24° / 75°F | 23° / 73°F | 4 mm | 10 | 24° / 75°F |
| October | 96 | 24° / 75°F | 23° / 73°F | 6 mm | 11 | 25° / 77°F |
| November | 96 | 24° / 75°F | 23° / 73°F | 5 mm | 11 | 25° / 77°F |
| December | 97 | 25° / 77°F | 24° / 75°F | 3 mm | 11 | 26° / 79°F |
Sea temperature in Cat Hill by month
The sea off Cat Hill is warmest in March at around 29°C / 84°F, and coolest in September at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Cat Hill: questions and answers
What kind of destination is Cat Hill?
Cat Hill is a beach resort in St. Helena with a hot desert climate — the sea reaches 29°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Cat Hill get a year?
Cat Hill gets about 3,078 hours of sunshine a year, at its best around January.
When is the best time to visit Cat Hill?
The sunniest time to visit Cat Hill is January, when the Sunshine Score peaks at 97/100 (with February and September close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Cat Hill?
March is the least sunny month in Cat Hill, scoring 95/100 with about 10 mm of rain.
What is the sea temperature in Cat Hill?
The sea in Cat Hill ranges from about 24°C (September) to 29°C (March). Month-by-month sea temperatures are on this page.
How strong is the sun in Cat Hill?
The typical midday UV index in Cat Hill peaks around 13 (extreme) in February, easing to about 9 (very high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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