Best time to visit Tristan da Cunha
The best time to visit Tristan da Cunha is January–February, judged on twenty years of weather records and the events worth going for.
Tristan da Cunha, Tristan da Cunha, Saint Helena
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 18.5 °C / 65 °F | 16.6 °C / 62 °F | 64 mm / 2.5 in | best month |
| February | 19.2 °C / 67 °F | 17.1 °C / 63 °F | 60 mm / 2.3 in | best month |
| March | 18.7 °C / 66 °F | 16.7 °C / 62 °F | 103 mm / 4 in | good month |
| April | 17.9 °C / 64 °F | 15.9 °C / 61 °F | 128 mm / 5 in | good month |
| May | 16.3 °C / 61 °F | 14.1 °C / 57 °F | 149 mm / 5.9 in | neither best nor good |
| June | 15 °C / 59 °F | 13 °C / 55 °F | 133 mm / 5.3 in | neither best nor good |
| July | 14 °C / 57 °F | 11.9 °C / 53 °F | 117 mm / 4.6 in | neither best nor good |
| August | 13.3 °C / 56 °F | 11.1 °C / 52 °F | 106 mm / 4.2 in | neither best nor good |
| September | 13.2 °C / 56 °F | 11.2 °C / 52 °F | 102 mm / 4 in | neither best nor good |
| October | 13.9 °C / 57 °F | 12.2 °C / 54 °F | 108 mm / 4.2 in | neither best nor good |
| November | 15.1 °C / 59 °F | 13.5 °C / 56 °F | 75 mm / 3 in | good month |
| December | 17.1 °C / 63 °F | 15.4 °C / 60 °F | 76 mm / 3 in | good month |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: best
- FFebruary: best
- MMarch: good
- AApril: good
- MMay: neither
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: neither
- NNovember: good
- DDecember: good
- Best
- January–February
- Good
- March–April, November–December
Why these months
January · best
In its favour: feels like (high) 17.3 °C / 63 °F, average daily high 18.5 °C / 65 °F, share of daylight that is sunny 75%, precipitation 64 mm / 2.5 in, days with heavy rain 2.2 days, wet days 8.8 days, average daily low 16.6 °C / 62 °F.
Against: relative humidity 80%.
February · best
In its favour: feels like (high) 18 °C / 64 °F, average daily high 19.2 °C / 67 °F, precipitation 60 mm / 2.3 in, share of daylight that is sunny 76%, days with heavy rain 1.6 days, wet days 7.5 days, average daily low 17.1 °C / 63 °F.
Against: relative humidity 78%.
March · good
In its favour: feels like (high) 17 °C / 63 °F, average daily high 18.7 °C / 66 °F, share of daylight that is sunny 72%, precipitation 103 mm / 4 in, average daily low 16.7 °C / 62 °F, wet days 10.2 days, days with heavy rain 3.7 days.
Against: relative humidity 77%.
April · good
In its favour: feels like (high) 15.2 °C / 59 °F, share of daylight that is sunny 68%, average daily high 17.9 °C / 64 °F, precipitation 128 mm / 5 in, average daily low 15.9 °C / 61 °F, days with heavy rain 4.2 days.
Against: wet days 12.8 days, relative humidity 78%.
November · good
In its favour: share of daylight that is sunny 72%, precipitation 75 mm / 3 in, feels like (high) 12.5 °C / 55 °F, average daily high 15.1 °C / 59 °F, days with heavy rain 2.5 days, wet days 9.8 days, average daily low 13.5 °C / 56 °F.
Against: relative humidity 79%.
December · good
In its favour: feels like (high) 15.3 °C / 60 °F, share of daylight that is sunny 70%, average daily high 17.1 °C / 63 °F, precipitation 76 mm / 3 in, days with heavy rain 1.9 days, average daily low 15.4 °C / 60 °F, wet days 10.2 days.
Against: relative humidity 81%.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: best
- FFebruary: best
- MMarch: good
- AApril: neither
- MMay: neither
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: good
- OOctober: good
- NNovember: best
- DDecember: best
- Best
- November–February
- Good
- March, September–October
Why these months
January · best
In its favour: average daily high 18.5 °C / 65 °F, precipitation 64 mm / 2.5 in, wet days 8.8 days, days with heavy rain 2.2 days, feels like (high) 17.3 °C / 63 °F, share of daylight that is sunny 75%, daylight per day 14.4 h, average daily low 16.6 °C / 62 °F.
Against: wind (daily max) 34 km/h / 21 mph.
February · best
In its favour: average daily high 19.2 °C / 67 °F, precipitation 60 mm / 2.3 in, wet days 7.5 days, days with heavy rain 1.6 days, feels like (high) 18 °C / 64 °F, share of daylight that is sunny 76%, daylight per day 13.5 h.
Against: average daily low 17.1 °C / 63 °F, wind (daily max) 34 km/h / 21 mph.
March · good
In its favour: average daily high 18.7 °C / 66 °F, precipitation 103 mm / 4 in, feels like (high) 17 °C / 63 °F, share of daylight that is sunny 72%, daylight per day 12.3 h, wet days 10.2 days, days with heavy rain 3.7 days, average daily low 16.7 °C / 62 °F.
Against: wind (daily max) 36 km/h / 22 mph.
September · good
In its favour: average daily high 13.2 °C / 56 °F, precipitation 102 mm / 4 in, average daily low 11.2 °C / 52 °F, share of daylight that is sunny 68%, daylight per day 11.9 h, days with heavy rain 2.9 days, feels like (high) 8.6 °C / 47 °F.
Against: wet days 13.2 days, wind (daily max) 43 km/h / 26 mph.
October · good
In its favour: average daily high 13.9 °C / 57 °F, precipitation 108 mm / 4.2 in, average daily low 12.2 °C / 54 °F, share of daylight that is sunny 71%, daylight per day 13.1 h, feels like (high) 10.3 °C / 51 °F, days with heavy rain 3.4 days, wet days 11.8 days.
Against: wind (daily max) 39 km/h / 24 mph.
November · best
In its favour: average daily high 15.1 °C / 59 °F, precipitation 75 mm / 3 in, feels like (high) 12.5 °C / 55 °F, average daily low 13.5 °C / 56 °F, share of daylight that is sunny 72%, daylight per day 14.1 h, wet days 9.8 days, days with heavy rain 2.5 days.
Against: wind (daily max) 37 km/h / 23 mph.
December · best
In its favour: average daily high 17.1 °C / 63 °F, precipitation 76 mm / 3 in, days with heavy rain 1.9 days, feels like (high) 15.3 °C / 60 °F, share of daylight that is sunny 70%, daylight per day 14.7 h, wet days 10.2 days, average daily low 15.4 °C / 60 °F.
Against: wind (daily max) 36 km/h / 22 mph.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Cerro Castor, 4583 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 17.3 °C | 18 °C | 17 °C | 15.2 °C | 12.4 °C | 10.7 °C | 9.2 °C | 8.2 °C | 8.6 °C | 10.3 °C | 12.5 °C | 15.3 °C |
| Days with heavy rain | 2.2 days | 1.6 days | 3.7 days | 4.2 days | 5.4 days | 4.3 days | 3.5 days | 3.5 days | 2.9 days | 3.4 days | 2.5 days | 1.9 days |
| Time rain usually falls | 6 pm | 8 am | 9 am | 1 am | 6 am | 6 pm | 5 pm | 3 am | 1 am | 4 am | 4 pm | 4 pm |
| Sunshine per day | 10.8 h | 10.2 h | 8.9 h | 7.6 h | 6.5 h | 6.1 h | 6.6 h | 7.4 h | 8.1 h | 9.3 h | 10.1 h | 10.3 h |
| Relative humidity | 80% | 78% | 77% | 78% | 76% | 76% | 76% | 75% | 75% | 77% | 79% | 81% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 10.2 µg/m³ | 9.3 µg/m³ | 9.9 µg/m³ | 10.1 µg/m³ | 10 µg/m³ | 10.3 µg/m³ | 10.1 µg/m³ | 11.5 µg/m³ | 11.4 µg/m³ | 11.4 µg/m³ | 10.7 µg/m³ | 9.8 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 13.1 µg/m³ | 12.1 µg/m³ | 12.6 µg/m³ | 13 µg/m³ | 12.7 µg/m³ | 13.4 µg/m³ | 13.1 µg/m³ | 14.8 µg/m³ | 14.4 µg/m³ | 14.6 µg/m³ | 13.5 µg/m³ | 12.3 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.