St. Helena Weather in December

St. Helena in December sees moderate temperatures, with highs around 14°C (57°F) and overnight lows of 4°C (39°F). Rainfall is at its peak this month, around 175 mm (6.9 in) on average, so waterproofs are essential.

Rainfall in St. Helena in December

Experience the peak rainfall in this month, with heavy showers being the norm. A poncho is essential to stay dry and comfortable. Rain is expected on roughly 14 days, totalling around 175 mm (6.9 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in St. Helena in December

Daytime highs in St. Helena in December reach 14°C (57°F), with nights around 4°C (39°F). The winter season takes place during December. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. During this period, the city experiences its coolest temperatures annually.

Sunshine in St. Helena in December

The area enjoys a moderate level of sunlight, with around 160 hours. It's a good balance between sunny and cloudy days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit St. Helena. Our weather planner can help you explore destinations with more pleasant weather conditions.

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• January
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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 December

Min Temperature 4°C (39°F)  

Max Temperature 14°C (57°F)  

Chance of Rain 46%  

Precipitation 175 mm (6.9 in)  

Rainy days 14 days  

Sunshine 160 hours *  

Percentage Sunshine 55% *  

* Data from: Healdsburg, the United States of America (36 KM, 22 Miles).

What to Wear in St. Helena in December

The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in St. Helena in December

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

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 the United States of America, check out our St. Helena's climate page.

More climate data for St. Helena

Temperature Rainfall Sunshine

See the full St. Helena climate overview or explore weather in the United States of America.