Best time to visit the Blue Lagoon: a month-by-month guide
By Daniel B. Farrugia · updated 2026-07-13
The Blue Lagoon is beautiful all year, but the best time to visit depends on whether you want the warmest swim or the calmest, crowd-free version. June and September are the all-round sweet spot; July and August have the warmest water and the biggest crowds. This month-by-month guide, plus a note on timing your day, helps you pick.
What is the best month to visit the Blue Lagoon?
June and September win for most visitors. Both give warm sea and long days, with noticeably fewer boats than the July and August peak. If you must travel in high summer, the water is at its warmest but the lagoon is at its most crowded, so timing your day matters more than the month. The shoulder months of May and October offer great value and quiet water, with swimming still comfortable for many.
Month-by-month at the Blue Lagoon
| Months | Sea | Crowds | Verdict |
|---|---|---|---|
| Nov to Apr | Cold, roughly 15 to 17 C | Minimal | Walks and photos; wetsuit swims only |
| May | Fresh, warming fast | Light | Great value shoulder month |
| Jun | Warm | Moderate | Best overall |
| Jul to Aug | Warmest, 26 C and above | Peak | Go early or take a sunset sail |
| Sep | Still warm | Easing | Best overall, part two |
| Oct | Swimmable most days | Light | Last comfortable swims of the year |
Search interest for the Blue Lagoon mirrors this pattern, spiking hard in July and August, which is exactly when the lagoon is busiest. Travelling just outside that window is the single easiest way to improve your visit.
What is the best time of day to visit?
In summer, timing your day beats choosing your month. Before 10 in the morning the day fleet has not yet arrived, the water is at its clearest, and you get something close to the empty-lagoon photograph. After about 4 in the afternoon the boats start to thin, and the light softens.
The middle of the day, roughly 11 to 3 in July and August, is the crush: dozens of boats, packed shorelines and queues at the kiosks. If your only option is a midday visit, a sunset cruise sidesteps the problem entirely by arriving as everyone else leaves.
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Is the water warm enough to swim?
The Mediterranean around Comino peaks near 26 C or higher in August and holds warmth into October, when many people still swim happily. It drops through winter to the mid-teens, cold enough that swimming becomes a wetsuit activity from around November to April. May sits on the edge: fresh but swimmable for the hardy, and warming by the week.
For jellyfish, there is no fixed season. They appear with certain wind and current conditions at any time, so check locally on the day. Crews on the boat tours usually know the situation before you get in the water.
When should you avoid the Blue Lagoon?
Avoid midday in July and August unless you genuinely do not mind crowds, and avoid windy days year-round, when the crossing gets rough and the caves may close. Deep winter is fine for a walk but not for swimming. Beyond that, there is no truly bad time: the lagoon in a quiet October is one of the loveliest swims in the Mediterranean. For wider seasonal context, the official Visit Malta site and Malta's climate overview are useful.
Frequently asked questions
What is the best month to visit the Blue Lagoon in Malta?
June and September are the all-round best: warm sea, long days and fewer boats than the July and August peak. May and October are great-value quieter shoulder months with swimming still comfortable for many.
What is the best time of day to visit the Blue Lagoon?
Before 10 in the morning or after 4 in the afternoon in summer. The middle of the day, roughly 11 to 3 in July and August, is the busiest, with dozens of boats and packed shorelines.
How warm is the water at the Blue Lagoon?
It peaks near 26 C or higher in August and stays swimmable into October. Through winter it falls to the mid-teens, cold enough that swimming becomes a wetsuit activity from around November to April.
Are there jellyfish at the Blue Lagoon?
Sometimes, as anywhere in the Mediterranean. There is no fixed season; they appear with certain wind and current conditions. Check locally on the day, and crews on boat tours usually know before you swim.
When is the Blue Lagoon least crowded?
Early morning and late afternoon in summer, and almost any time from October to May. June and September offer warm water with far fewer boats than midsummer.