How warm is the Blue Lagoon water in Iceland?

The water in the Blue Lagoon is heated to around 37-40 degrees Celsius (98-104 F). Due to fluctuations in weather conditions, the precise temperature may change month to month, however you can expect pleasantly warm waters year-round. The sensation is similar to stepping into a hot bath.



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The runoff is filtered straight into the Blue Lagoon, which is what heats the water. That doesn't mean it's dangerous or toxic — far from it! It's still a geothermal pool with mineral-rich water. The Blue Lagoon is simply not the natural phenomenon that many people believe it to be.

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The Blue Lagoon is designed for relaxed bathing. Its warm, milky waters are not suitable for vigorous exercise. Likewise, diving is not allowed anywhere. Since geothermal seawater is cloudy and saturated with minerals, underwater visibility is non-existent and thus goggles are of no use.

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The seawater in the Blue Lagoon has high levels of silica. Silica is not harmful to hair. However, if your hair gets wet, it can become stiff and difficult to manage. Therefore, we recommend that you apply conditioner to your hair before entering the lagoon--and leave it in your hair while in the lagoon.

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Do you shower after the Blue Lagoon? Yes, you should shower before and after your stay at the lagoon. Guests are required to shower, without their swimsuit, prior to using the geothermal spa. Simply use the showers and soaps available in the changing rooms.

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Likewise, you can purchase a swimsuit in the shop at Blue Lagoon. Is there a maximum time allowed in that water? You may spend as much time as you wish enjoying the water. Your entry ticket is valid for the entire day.

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Yes, you can take your phone in the Blue Lagoon, but definitely bring a waterproof case to protect it from water and silica.

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There are instructions on the locker door as well. It is recommended that you leave all your jewelry and watches in the locker and the water might cause some damage to them. After having fun with the locker, you will need to shower before going into the lagoon. It is compulsory to shower and wash with soap.

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We recommend that you remove any jewelry (rings, necklaces, bracelets, etc.) before entering the lagoon. This will ensure that you don't lose your items and that they don't get damaged by geothermal seawater which has high levels of silica, algae, and minerals.

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Do you provide towels, bathrobes, or slippers? Our two types of entry tickets—Comfort and Premium—include the use of a towel. However, the Premium ticket also includes the use of a bathrobe. If you have a Comfort ticket and would like a bathrobe, you can rent them for ISK 1500 each.

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All guests must shower—without a swimsuit—before entering the Blue Lagoon. Use of Blue Lagoon skin care shower gel and hair conditioner is complimentary. If you desire more privacy while you shower, locate a shower that is equipped with a door.

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How warm is the Blue Lagoon? The water in the Blue Lagoon is heated to around 37-40 degrees Celsius (98-104 F). Due to fluctuations in weather conditions, the precise temperature may change month to month, however you can expect pleasantly warm waters year-round. The sensation is similar to stepping into a hot bath.

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Blue Lagoon – History It is not a natural hot spring – in fact, the water within is wastewater from the power plant! While at first glance this may put you off, it should be noted that the water in the Blue Lagoon is completely safe and contains only natural minerals.

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The best time to visit the Blue Lagoon is in the evening to enjoy the midnight sun in summer or the northern lights in winter. The average water temperature is 102 F (39 C) all year. The Blue Lagoon is not natural and was formed in 1976.

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To enjoy a more peaceful and serene experience, it's best to visit the Blue Lagoon during off-peak hours. Visiting early in the morning between 8:00 AM and 9:00 AM or in the evening between 6:00 PM and 7:00 PM when it's quieter is a great way to avoid crowds and fully appreciate the natural beauty of the lagoon.

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On average, we would say that it is absolutely enough to allow yourself two hours for the Blue Lagoon. However, the time every traveler needs for visiting the Blue Lagoon is highly individual.

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Flip-flops, slippers and water shoes are allowed around the lagoon's edge and although flip-flops are not provided as standard, the shop does sell them if you forget to pack a pair. Slippers are included with the premium package.

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The Blue Lagoon does not allow any skinny dipping. You will have to bring along your swimsuit in order to enter both the water and the saunas. However, there aren't any rules about the type of swimsuit you can bring.

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You can also wear a swim cap, which you'll find for sale at our Blue Lagoon store. When you exit the lagoon, rinse your hair with fresh water and apply shampoo and conditioner, which are both provided in the shower. Use Blue Lagoon hair care products to help moisturize and protect your hair.

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The Blue Lagoon was named because the water of the lagoon looks blue when reflected from the sun but in actuality, the water is a milky white color. And don't worry about the smell, the sulfur has been removed so there is no funky smell at all anymore.

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