Key Largo

Planning a trip or just curious about the weather in Key Largo? Here you will find the latest information: current weather conditions, detailed forecasts, and clear charts to help you be prepared for any of nature's whims.

Key Largo, located in the USA, features a tropical climate characterized by warm weather throughout the year. Even in winter months, the average temperature rarely drops below 20°C, making it an attractive year-round destination.

The climate of Key Largo has two main seasons. A drier and milder season lasts roughly from November to April, when average monthly temperatures range from 21°C to 25°C, and precipitation is minimal (1-2 mm). From May to October, a hotter and more humid season sets in. During this period, average temperatures rise to 26-28.6°C, and precipitation increases to 4-6 mm per month, with a significant rise in the number of rainy days, especially from June to September (23-25 days).

A key feature of the weather in Key Largo is the relatively small annual temperature range, which ensures consistently warm conditions. However, it's worth noting the pronounced wet season in the summer and early autumn months, when the probability of rain is significantly higher. Despite this, the sun frequently makes an appearance even during the rainiest periods.

In Key Largo, a warm tropical climate awaits you year-round, with minor temperature fluctuations between seasons. The annual range of average temperatures varies from a pleasant 21.0°C in January to a hot 28.6°C in July and August. The sweltering months are usually July and August, when daytime highs consistently exceed 30°C and nights remain very warm, with temperatures around 26.8-26.9°C. January is considered the coolest month, but even then, the average temperature stays at a comfortable 21.0°C, with minimum nighttime temperatures around 18.5°C and daytime highs reaching 23.5°C.

Summer months in Key Largo, from June to September, are characterized as hot and humid. The average daily temperature during this period ranges from 27.7°C in June to 28.6°C in July and August. Daytime heat is often accompanied by high humidity, which is especially noticeable given the high number of rainy days in the summer season. Nights bring only slight relief, as temperatures rarely drop below 26°C. This is an ideal time for water sports and swimming, but be prepared for the tropical humidity.

Winter in Key Largo, spanning from December to February, offers exceptionally mild and pleasant weather. Average temperatures in these months range from 21.0°C to 22.8°C. During the day, the thermometer usually rises to 23.5-24.9°C, and at night it drops to a comfortable 18.5-20.7°C. Frost or severe cold is practically non-existent here. Temperature fluctuations between day and night throughout the year are not very large, typically differing by about 3.5-5°C, ensuring consistently warm weather without sharp changes.

Key Largo experiences a pronounced seasonality in the distribution of precipitation throughout the year, all of which falls as rain due to the warm climate. The city has a distinct wet season with more frequent rains, followed by a drier period with less precipitation.

The wet season in Key Largo typically falls between May and October. The highest amount of rainfall, though still moderate, occurs in June and September, when monthly averages reach 6 mm. However, it is during the summer and early autumn months that rain occurs most frequently: the "wettest" month in terms of rainy days is August, averaging 25 wet days. June, July, and September are also characterized by high precipitation frequency, with about 23 rainy days each. During this period, frequent rains of varying intensity can be expected.

The dry season lasts approximately from November to April. During this time, the amount of precipitation decreases significantly. The lowest rainfall is recorded in January and February (only 1 mm per month). March also stands out as one of the driest months, having the fewest rainy days—only about 6. During these months, rain happens much less often, and the weather is generally sunnier and drier, making this period attractive for those who prefer to avoid frequent precipitation.

When planning a trip to Key Largo, it is important to consider its warm climate, which persists throughout the year. The basis of your wardrobe should consist of light, breathable clothing made of natural fabrics, such as cotton T-shirts, shorts, sundresses, and linen trousers. The average annual temperature ranges from 21°C in January to nearly 29°C in July and August, so summer clothes are always relevant. Don't forget sunscreen with a high SPF, sunglasses, and a hat (a sun hat or a cap) to protect yourself from the bright sun, especially in the summer months when maximum temperatures can exceed 30°C.

Although Key Largo doesn't have a distinct winter, the number of rainy days increases from May to October, peaking in June-September (up to 23-25 wet days per month), though total rainfall remains low (4-6 mm). During this period, a light waterproof jacket or a compact umbrella will be useful. For evening walks, especially from November to March when minimum temperatures can drop to 18-20°C, a light sweater, cardigan, or windbreaker will come in handy. Layering your clothes will allow you to stay comfortable during slight temperature changes throughout the day.

In addition to clothing, be sure to bring comfortable shoes for walking and exploring the surroundings—sandals, flip-flops, and light sneakers are excellent choices. Of course, don't forget swimwear, as Key Largo is famous for its water activities. Depending on your plans, insect repellent might also be useful, especially if you plan to spend time outdoors during the wetter months.