Old Man Bay Weather in September

September in Old Man Bay brings very high temperatures, with daytime highs of 30°C (86°F) and nights around 27°C (81°F). Quite a bit of rainfall is expected, around 154 mm (6.1 in), so pack an umbrella.

Rainfall in Old Man Bay in September

On average, there are about 16 days with rain during this month, averaging 154 mm (6.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Old Man Bay in September

September in Old Man Bay brings typical temperatures with highs around 30°C (86°F) and lows of 27°C (81°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With lows of 27°C (81°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.

Sunshine in Old Man Bay in September

Enjoy a sunny month with about 240 hours of sunshine, the clear skies make Old Man Bay even more beautiful.

Average water temperature in September

At 30°C (86°F), the water feels bath-warm. Fine for swimming, but those looking for a cooling swim may be a bit disappointed.

If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April and December typically offer the best circumstances for Old Man Bay.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Cayman Islands, check out our Old Man Bay's climate page.

Old Man Bay Temperature in September

Min Temperature 27°C (81°F)  

Max Temperature 30°C (86°F)  

Water Temperature 30°C (86°F) *  

Chance of Rain 52%  

Precipitation 154 mm (6.1 in)  

Rainy days 16 days  

Humidity 79% *  

Sunshine 240 hours *  

Percentage Sunshine *  

* Data from: Georgetown, Cayman Islands (21 KM, 13 Miles).

What to Wear in Old Man Bay in September

Warm but pleasant conditions in Old Man Bay in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. The water temperature sits at about 30°C (86°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Old Man Bay in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Cayman Islands, check out our Old Man Bay's climate page.

More climate data for Old Man Bay

Temperature Rainfall Sunshine Humidity Water Temp

See the full Old Man Bay climate overview or explore weather in Cayman Islands.