The best times to visit Saint Helena for ideal weather are

October 15th to January 28th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Saint Helena Travel Info

Weather in Saint Helena

Temperature

Average temperatures in Saint Helena vary very little. Considering humidity, temperatures feel very enjoyable all year with a fair chance of precipitation about half of the year. The area is more temperate than most — in the 77th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Saint Helena, the hottest months are March, February, and then April. See average monthly temperatures below. The warmest time of year is generally early April where highs are regularly around 73.8°F (23.2°C) with temperatures rarely dropping below 64.9°F (18.3°C) at night.

Saint Helena Temperatures (Fahrenheit)

Key
High
Average
Low

Saint Helena Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Saint Helena Perceived Temperature (F)

Key
High
Average
Low

Saint Helena Perceived Temperature (C)

Key
High
Average
Low

 

Average Saint Helena Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 73 67.4 63.5
Feb 73.6 68 64.1
Mar 73.4 68 64.3
Apr 72.4 67.4 63.9
May 68.7 64 60.4
Jun 66.7 62.4 59
Jul 65 60.8 57.6
Aug 63.6 59.2 55.7
Sep 63.9 59.2 55.6
Oct 65.3 60.4 56.9
Nov 67.8 62.5 59
Dec 70.5 65.1 61.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 22.8 19.7 17.5
Feb 23.1 20 17.8
Mar 23 20 17.9
Apr 22.4 19.7 17.7
May 20.4 17.8 15.8
Jun 19.3 16.9 15
Jul 18.3 16 14.2
Aug 17.6 15.1 13.2
Sep 17.7 15.1 13.1
Oct 18.5 15.8 13.8
Nov 19.9 16.9 15
Dec 21.4 18.4 16.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Saint Helena are November, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early June with an average of 2 days of significant precipitation the week of June 4th.

When can you find snow in Saint Helena? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Saint Helena.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Saint Helena (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 13% 0 2.3
Feb 15% 0 2.5
Mar 18% 0 3.4
Apr 17% 0 3.4
May 18% 0 3
Jun 23% 0 3.7
Jul 20% 0 3.2
Aug 20% 0 2.8
Sep 17% 0 3
Oct 14% 0 2.9
Nov 12% 0 2.1
Dec 14% 0 2.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 13 0 5.8
Feb 15 0 6.4
Mar 18 0 8.6
Apr 17 0 8.6
May 18 0 7.6
Jun 23 0 9.4
Jul 20 0 8.1
Aug 20 0 7.1
Sep 17 0 7.6
Oct 14 0 7.4
Nov 12 0 5.3
Dec 14 0 6.1

 

Humidity and Wind

Saint Helena has some very humid months, and high humidity throughout the year. The least humid month is July (70.5% relative humidity), and the most humid month is February (73.3%).

Wind in Saint Helena is usually stronger than many places. The windiest month is May, followed by June and August. May’s average wind speed of around 12 knots (13.8 MPH or 22.3 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May to early June where average top sustained speeds reach 18.7 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Saint Helena.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 10.3 Gentle breeze 14.3 Significant breeze
Feb 10.3 Gentle breeze 14.6 Significant breeze
Mar 10.5 Gentle breeze 15.5 Significant breeze
Apr 10.8 Gentle breeze 15.3 Significant breeze
May 12 Significant breeze 17.2 Significant breeze
Jun 11.9 Significant breeze 16.6 Significant breeze
Jul 11.4 Significant breeze 15.8 Significant breeze
Aug 11.9 Significant breeze 16.2 Significant breeze
Sep 11.8 Significant breeze 16.2 Significant breeze
Oct 10.9 Gentle breeze 14.8 Significant breeze
Nov 11.4 Significant breeze 15.8 Significant breeze
Dec 10.3 Gentle breeze 14.5 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 72.4%
Feb 73.3%
Mar 73.2%
Apr 73.1%
May 71.4%
Jun 70.5%
Jul 70.5%
Aug 71.5%
Sep 72.6%
Oct 73%
Nov 71.8%
Dec 71.8%

 

Is it Safe to Travel to Saint Helena?

Our best data indicates this area is somewhat safe. As of Dec 04, 2023 there are travel warnings for the United Kingdom; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Nov 27, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Saint Helena is September, followed by November and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Saint Helena in July. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 38.7 in July means 38.7% of the tourists vs. September.

 

 

Overall Saint Helena Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 73.8°F (23.2°C) and 67.4°F (19.7°C) with colder temperatures in the later months. Rain is somewhat common with 5 to 6 days of significant precipitation per month. Fall is the slowest for tourism, which makes it a good time for those looking for deals.

Winter (June through August)

The middle-year months have comfortably cool weather with high temperatures that are brisk. These months see the most precipitation with 6 to 7 days of precipitation per month. June – August is the second busiest season for tourism in Saint Helena, so lodging and other accommodations may cost slightly more.

Spring (September through November)

Spring daily highs range from 68.8°F (20.4°C) and 63.3°F (17.4°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 3 to 5 days per month. Tourism is the busiest during these months due to the weather, so hotels may be higher priced.

Summer (December through February)

Weather is perfect this time of year in Saint Helena to be enjoyable for warm weather travelers. The average high during this season is between 73.8°F (23.2°C) and 69.6°F (20.9°C). On average, it rains or snows a fair amount: consistently 4 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel › Saint Helena

 


 

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