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St. Helena Weather in September

With daytime temperatures of 31°C (88°F) and nighttime lows of 12°C (54°F), September in St. Helena brings very high temperatures during the day. The perfect weather makes it an appealing time to visit.

Rainfall in St. Helena in September

Historically, the month has about 2 days of rain, averaging 4.2 mm (0.2 in) in total. Any rain that does arrive is likely to be light drizzle rather than a proper shower.

Temperature in St. Helena in September

St. Helena in September is worth a visit. The temperature is perfect, with 31°C (88°F) during the day and 12°C (54°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in St. Helena in September

With approximately 275 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you prefer enjoying temperate temperatures and rain-free days, April, May and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our St. Helena's climate page.

St. Helena Temperature in September

Min TemperatureMin Temperature 12°C (54°F)  
Max TemperatureMax Temperature 31°C (88°F)  
Chance of RainChance of Rain 6%  
PrecipitationPrecipitation 4.2 mm (0.2 in)  
Rainy daysRainy days 2 days  
SunshineSunshine 275 hours *  
Percentage SunshinePercentage Sunshine 77% *  
* Data from: Healdsburg, the United States of America (36 KM, 22 Miles).

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in St. Helena in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in St. Helena in September

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

Swimming
10/10
Cycling
8/10
Walking
8/10
Barbeque
10/10
Camping
10/10
Outdoor sports
8/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our St. Helena's climate page.

More climate data for St. Helena