Weather in St. Augustine

Stay up to date with the latest weather conditions in the city of St. Augustine. Below you will find current data, forecasts, and useful weather charts.

St. Augustine in the United States boasts a pleasant humid subtropical climate, making it an attractive destination throughout the year. The weather here is characterised by mild winters and hot, humid summers. Thanks to this climate, the city offers comfortable conditions for exploring its historic streets and natural beauty, although each season has its own specific features.

Seasons are clearly defined in St. Augustine. Winter, from December to February, is usually mild, with average temperatures around 14.8°C - 17.7°C, which is ideal for those looking to avoid the cold. Spring brings gradual warming, preparing for the hot summer. The summer months, especially from June to August, are distinguished by high temperatures, reaching an average of 27°C - 28°C, and high humidity. It is in summer, from June to September, that the highest number of rainy days is observed (from 19 to 25 days per month), indicating a wetter period, although the total amount of precipitation in millimetres remains comparatively low. Autumn offers warm and sunny days, gradually reducing the summer heat and rainfall, creating excellent conditions for walking.

Overall, the climate of St. Augustine allows you to plan a trip for almost any month. If you prefer cooler and drier weather, then the best time to visit is spring or autumn. Winter is also comfortable for walking. Summer will delight lovers of hot weather, but it is worth being prepared for frequent, though usually short, rains and high humidity. Regardless of the chosen time, St. Augustine will offer you a warm welcome and plenty of impressions.

St. Augustine experiences distinct temperature seasonality, with an annual range from cool winter lows to hot summer highs. The hottest months are traditionally July and August, when the average temperature holds at 28.0°C, and daily highs regularly reach 30.8°C - 30.9°C. June is also very warm, with an average temperature of 27.0°C and a maximum of around 30.1°C. The coolest month is considered to be January with an average temperature of 14.8°C, when night-time temperatures can drop on average to 11.0°C, while daytime temperatures rise to 18.6°C.

The summer period in St. Augustine, especially from June to August, is characterised by consistent heat and high humidity. Daytime temperatures during this time often fluctuate in the range of 30-31°C, creating a sultry atmosphere that is somewhat softened by breezes from the Atlantic Ocean. Nights also remain very warm, with minimum temperatures rarely dropping below 23.9°C - 25.3°C. This means that even after sunset, a sensation of warmth remains. The difference between day and night temperatures in summer is usually not very large, amounting to about 5-7°C, which indicates consistently warm conditions.

Winter in St. Augustine, covering the months from December to February, is distinguished by mildness and comfort. Average daytime temperatures in January, the coldest month, reach 18.6°C, and in December and February can rise to 20.2°C - 21.7°C, allowing you to enjoy walks without feeling intensely cold. Nights become noticeably cooler, with temperatures dropping on average to 11.0°C in January and 13.3°C - 13.7°C in December and February. Frost here is an extremely rare phenomenon. Fluctuations between day and night temperatures in winter are somewhat more pronounced than in summer and can reach 7-8°C, which is typical for a subtropical climate during this period.

In St. Augustine, there is noticeable seasonality in the distribution of precipitation throughout the year. The city experiences a wetter period in summer, while the remaining months are characterised by less rainfall. Given the mild winter temperatures, snow is an extremely rare phenomenon here, so precipitation mainly falls in the form of rain.

The highest probability of encountering rain in St. Augustine falls on the summer months. The period from June to September stands out as the wettest. July records the maximum number of rainy days – on average 25, followed by August with 24 rainy days and June with 20 days. September, with 19 rainy days, shows the highest figure for precipitation amount, reaching 6 mm. In general, summer rains, although frequent, judging by the overall monthly figures, may not be too heavy.

The driest months in St. Augustine are the winter and early spring periods. In January, February, March, and December, the least amount of precipitation falls – only about 2 mm per month, with the number of rainy days being approximately 8. May also belongs to the drier months with 2 mm of precipitation, although with a slightly higher number of rainy days (10). During these periods, the likelihood of catching rainy weather is significantly lower than in summer, making them attractive for those who prefer drier weather.

When packing your suitcase for a trip to St. Augustine, it is important to consider its pleasant subtropical climate with mild winters and hot, humid summers. Regardless of the season, your main companion will be comfortable footwear for long walks along the charming streets of this historic city. Do not forget sunscreen and sunglasses as well, as the sun delights with its presence here for most of the year. The principle of layering in clothing is an excellent strategy, allowing you to easily adapt to possible temperature changes throughout the day, especially in the transitional seasons.

If your trip falls during the hot summer months, from June to August, when the average temperature holds around 27-28°C, and daytime highs can exceed 30°C, choose light and breathable clothing made of cotton or linen. Shorts, T-shirts, sundresses, and, of course, a swimsuit will be most appropriate. Summer is also the period with the highest number of rainy days (especially July and August), so a compact umbrella or light raincoat will become your faithful helpers during sudden, but usually short-lived, downpours. A head covering will protect you from the scorching sun.

For travel during the cooler time of year, from late autumn to early spring (approximately from November to March), when average temperatures range from 14°C to 20°C, it is worth taking jeans or trousers, warm cardigans, sweaters, and a light jacket or windbreaker. Evenings can be noticeably cooler, so a few warm items will ensure comfort. Although winters in St. Augustine are mild, and severe frosts are a rarity, a light scarf or stole may come in handy on the freshest days. An umbrella might still be needed, although the amount of precipitation in these months is significantly less than in summer.