Blue Lagoon Climate and Average Weather
Climate of Blue Lagoon: average temperatures, rainfall and seasons month by month.
Climate in Blue Lagoon month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 36° | 29° | 5,2 in | ★★☆☆☆ |
| February | 37° | 30° | 4,5 in | ★★☆☆☆ |
| March | 40° | 32° | 6,3 in | ★★☆☆☆ |
| April | 44° | 36° | 4,5 in | ★★☆☆☆ |
| May | 48° | 41° | 4,6 in | ★★★☆☆ |
| June | 52° | 45° | 3,8 in | ★★★☆☆ |
| July | 55° | 49° | 5,7 in | ★★★☆☆ |
| August | 55° | 48° | 5,4 in | ★★★☆☆ |
| September | 50° | 43° | 4,3 in | ★★★☆☆ |
| October | 44° | 37° | 6,1 in | ★★☆☆☆ |
| November | 40° | 33° | 3,9 in | ★★☆☆☆ |
| December | 38° | 30° | 6,0 in | ★☆☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Recent extremes in Blue Lagoon
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Blue Lagoon compares with nearby places
Annual averages, and the difference against Blue Lagoon.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Keflavik International Airport | 9 mi | 42°F | about the same | 52 in |
| Reykjavik | 24 mi | 40°F | 33°F cooler | 59 in |
| Golden Circle | 53 mi | 34°F | 40°F cooler | 74 in |
| Westman Islands | 73 mi | 45°F | +35°F warmer | 59 in |
| Vatnajokull National Park | 169 mi | 21°F | 53°F cooler | 77 in |
Best time to visit Blue Lagoon
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, March and December - expect the least comfortable mix of heat, cold or rain.
What this means for Blue Lagoon
Today is slightly cooler than average for October. The forecast high of 39°F is 4.9°F below the 44°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
Overnight lows near 33°F mean ice is possible on bridges before dawn.
Above 60 degrees latitude, daylight swings enormously - summer nights barely darken and winter days are short.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 51°F.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, March and December - historically the least comfortable months here.
Summary
Blue Lagoon is a tourist attraction in Iceland. Blue Lagoon is a landmark known for a geothermal spa in a lava field.
Right now it is 33°F (1°C) in Blue Lagoon with clear. It feels like 24°F. Today runs from 33°F to 39°F. Chance of precipitation is 2%. Sightseeing conditions score 6.8/10 - fair - plan around the weather.
The best time to visit Blue Lagoon is June, July and August. The climate is subarctic. January, March and December tend to be the least comfortable months. July is the warmest month with average highs near 55°F, while January is the coldest with lows near 29°F.
The closest major airport is Keflavik International Airport (KEF), about 9 mi away. Nearby highlights include Golden Circle, Westman Islands and Vatnajokull National Park.
In plain terms. Today is slightly cooler than average for October. The forecast high of 39°F is 4.9°F below the 44°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Blue Lagoon today at 9.5/10. Overnight lows near 33°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Blue Lagoon
Weather map for Blue Lagoon
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Blue Lagoon
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Blue Lagoon?
Blue Lagoon is a tourist attraction in Iceland. Its coordinates are 63.8804, -22.4495. It lies in Europe.
What is the weather like in Blue Lagoon right now?
It is currently 33°F (1°C) with clear. Humidity is 88% and wind is 12 mph.
When is the best time to visit Blue Lagoon?
June, July and August offer the most comfortable conditions in Blue Lagoon, which has a subarctic climate. January, March and December are usually the hardest months for outdoor plans.
What time zone is Blue Lagoon in?
Blue Lagoon observes Atlantic/Reykjavik (UTC+00:00). The local time is 8:25 PM.
What is the nearest airport to Blue Lagoon?
The closest airports are Keflavik International Airport (KEF), 9 mi away.
What are the top things to do in Blue Lagoon?
Popular options include Golden Circle, Westman Islands and Vatnajokull National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (attractions) - 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 October 26, 2026 at 8:25 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
