The top 10 things to see on St. Helena Island
Situated in the middle of the South Atlantic Ocean, between South Africa and Brazil, St. Helena is considered one of the most remote islands in the world.
Jamestown Weather in December
Jamestown in December sees high daytime temperatures of 23°C (73°F) and nighttime lows of 21°C (70°F). With just 9.7 mm (0.4 in) of rainfall expected, it's a dry month overall.
Rainfall in Jamestown in December
You can expect rain on around 6 days based on historical patterns, with 9.7 mm (0.4 in) average for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Jamestown in December
December tends to be one of the excellent months in Jamestown, with 23°C (73°F) in the afternoon and 21°C (70°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 21°C (70°F), the nights are warm and generally comfortable.Our weather planner can help you explore other travel destinations worldwide.
Jamestown Temperature in December
Min Temperature
21°C (70°F)
Max Temperature
23°C (73°F)
Chance of Rain
19%
Precipitation
9.7 mm (0.4 in)
Rainy days
6 days
Humidity
65%
Jamestown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jamestown - and find the best time to visit.
Daily Historical Temperatures
49-year average (1977-2025)
Based on our historical records, temperatures in Jamestown typically stay consistent throughout December, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 17°C (63°F).
Average temperatures in December
Daily Historical Precipitation
49-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Jamestown in December
Browse day-by-day weather records for Jamestown spanning 50 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jamestown historical weather extremes in December
According to our 38 years of weather records for Jamestown, the following extremes were recorded between 1987 and 2025.
- On December 19, 1987, temperatures climbed to 26°C (79°F), marking the warmest December day on record.
- On December 5, 1998, Jamestown saw its coldest December day with temperatures maxing out at 16°C (61°F).
- Nighttime temperatures dropped to 13°C (55°F) on December 5, 2009, marking the coldest December night on record.
Best Places in Saint Helena in December
Find out more about the weather in Saint Helena and which places have the best travel conditions in this month. See all of Saint Helena in December →
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 Jamestown in December
Pleasant temperatures in December mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Jamestown in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping10/10 -
Outdoor sports10/10
Jamestown 3-Day Forecast
More climate data for Jamestown
See the full Jamestown climate overview or explore weather in Saint Helena.
Popular in December
Where to go in December - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The top 10 things to see on St. Helena Island
Visit Kruger Park in South Africa
Are you going to South Africa, then you cannot skip the Kruger Park. The Kruger Park is one of the most beautiful and largest safari parks in the world.
The Atlas Mountains in Morocco
This mountain range is the second highest mountains in the world and is certainly one of the most natural and wonderful mountains you could ever visit. One for the bucket list for sure.
One of South Africa's most spectacular private game reserves
Sabi Sand Game Reserve is one of South Africa's most spectacular private game reserves. The chance that you see the entire Big Five is high in winter (June - August).