Deception Island Weather Forecast
Deception Island weather: 26°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Deception Island
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | 🌨️ Light snow showers | 27° / 22° | 100% · 0,0 in | 41 mph | 1 |
| Sat, Aug 22 | ☁️ Overcast | 26° / 24° | 0% | 21 mph | 1 |
| Sun, Aug 23 | ☁️ Overcast | 27° / 24° | 0% | 29 mph | 1 |
| Mon, Aug 24 | ☁️ Overcast | 28° / 27° | 0% | 29 mph | 1 |
| Tue, Aug 25 | 🌦️ Light drizzle | 29° / 22° | 0% · 0,0 in | 25 mph | 1 |
| Wed, Aug 26 | ☁️ Overcast | 26° / 23° | 8% | 23 mph | 1 |
| Thu, Aug 27 | ☁️ Overcast | 25° / 20° | 14% | 14 mph | 1 |
| Fri, Aug 28 | ☁️ Overcast | 23° / 20° | 16% | 17 mph | 1 |
| Sat, Aug 29 | 🌨️ Light snow | 23° / 20° | 18% · 0,0 in | 19 mph | 1 |
| Sun, Aug 30 | ☁️ Overcast | 22° / 21° | 9% | 27 mph | 1 |
| Mon, Aug 31 | ☁️ Overcast | 23° / 21° | 14% | 26 mph | 1 |
| Tue, Sep 1 | 🌨️ Light snow | 26° / 23° | 20% · 0,0 in | 27 mph | 1 |
| Wed, Sep 2 | ☁️ Overcast | 27° / 24° | 29% | 22 mph | 1 |
| Thu, Sep 3 | 🌨️ Light snow | 28° / 26° | 27% · 0,0 in | 39 mph | 1 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 26°F against a August normal of 26°F - right on average.
The next 7 days look unusually dry - roughly 13% of a normal August week (0,1 in against 0,5 in).
What this means for Deception Island
Today is about average for August. The forecast high of 27°F is in line with the 26°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Gusts to 62 mph will push high-sided vehicles on exposed roads and bridges. Overnight lows near 22°F mean ice is possible on bridges before dawn. Wet roads are likely; braking distances roughly double in heavy rain.
Above 60 degrees latitude, daylight swings enormously - summer nights barely darken and winter days are short.
Southern Hemisphere, so peak summer falls in December to February.
The gap between the warmest and coldest month averages 42°F - an unusually even climate through the year.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- Insulated outer layer, hat and boots with grip for ice
- Avoid high-elevation trails without traction devices - frozen surfaces persist in shade all day.
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 62 mph.
- Avoid swimming outside patrolled areas - waves are running at 3.2 m.
- If your dates are flexible, avoid April, July and September - historically the least comfortable months here.
See the Deception Island forecast by time range
Deception Island weather - more answers
Explore Deception Island
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Deception Island?
Deception Island is an island in Antarctica. Its coordinates are -62.9667, -60.6333. It lies in Antarctica.
What is the weather like in Deception Island right now?
It is currently 26°F (-4°C) with mainly clear. Humidity is 66% and wind is 32 mph.
When is the best time to visit Deception Island?
January, March and December offer the most comfortable conditions in Deception Island, which has a polar climate. April, July and September are usually the hardest months for outdoor plans.
What time zone is Deception Island in?
Deception Island observes America/Punta_Arenas (UTC-03:00). The local time is 11:45 AM.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (antarctica) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 21, 2026 at 11:45 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
