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Contents
- The climate of St. Augustine
- The best time to visit St. Augustine
- The worst time to visit St. Augustine
- Spring weather in St. Augustine
- Summer weather in St. Augustine
- Autumn weather in St. Augustine
- Winter weather in St. Augustine
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
Palm trees and colorful houses in front of water fountains in a popular town square in St. Augustine, Florida
The climate of St. Augustine
Located in the state of Florida, St. Augustine classifies under the Köppen climate category Cfa, popularly known as the humid subtropical climate where no dry season is present. The geographical position of St. Augustine blesses the city with warm temperatures round the year, while the coastal location ensures abundant humidity, hence guaranteeing no dry season in sight.
Observing the climatological parameters, temperature highs in St. Augustine tend to scale from a moderate 66°F (18.9°C) in January to a warm 90°F (32.2°C) in July, while the lows stay between a chilly 46°F (7.8°C) in January to a quite warm 73°F (22.8°C) from July to August. This indicates comfortably warm weather throughout the year, with the warmth peaking during the summer months and a subtle coolness marking the winter months.
Rainfall patterns in St. Augustine reveal a lack of any dry season, with rainfall days remaining more-or-less constant throughout the year, except for an increase during the summer months. Rainfall inches fluctuate from 2.3 in November to a high of 7.5 in September. These patterns ensure ample wet periods evenly spread out over the year, with maximal rainfall experienced during the late summer.
Daylight hours in St. Augustine vary from 10.3 hours in December to a peak of 14.1 hours in June. Meanwhile, sunshine hours remain fairly constant, ranging from 6 in December to 9 from March till August. The UV Index shows a high of 11 in June and July indicating increased sunburn risk during these months. The climate of St. Augustine »
Observing the climatological parameters, temperature highs in St. Augustine tend to scale from a moderate 66°F (18.9°C) in January to a warm 90°F (32.2°C) in July, while the lows stay between a chilly 46°F (7.8°C) in January to a quite warm 73°F (22.8°C) from July to August. This indicates comfortably warm weather throughout the year, with the warmth peaking during the summer months and a subtle coolness marking the winter months.
Rainfall patterns in St. Augustine reveal a lack of any dry season, with rainfall days remaining more-or-less constant throughout the year, except for an increase during the summer months. Rainfall inches fluctuate from 2.3 in November to a high of 7.5 in September. These patterns ensure ample wet periods evenly spread out over the year, with maximal rainfall experienced during the late summer.
Daylight hours in St. Augustine vary from 10.3 hours in December to a peak of 14.1 hours in June. Meanwhile, sunshine hours remain fairly constant, ranging from 6 in December to 9 from March till August. The UV Index shows a high of 11 in June and July indicating increased sunburn risk during these months. The climate of St. Augustine »
The best time to visit St. Augustine
Considering the various factors like temperature, rainfall, daylight and UV index, the best time to visit St. Augustine can arguably be the Spring months from March to May. The temperature during these months ranges from a high of 73°F (22.8°C) to 84°F (28.9°C) and a low of 53°F (11.7°C) to 65°F (18.3°C) which can be considered quite pleasant for outdoor activities. The daylight hours are favourable too, stretching from 12 hours to over 13.5 hours. While rainfall days remain on the lower end throughout the Spring season, it provides plenty of opportunities to explore the city. The best time to visit St. Augustine »
The worst time to visit St. Augustine
While there is no strictly "worst" time to visit St. Augustine due to the subtropical climate, the summer months from June through August could be less comfortable. The temperatures peak around this time with highs between 88°F (31.1°C) in June, 90°F (32.2°C) in July and 89°F (31.7°C) in August. The lowest temperature during the night keeps around 71°F (21.7°C) to 73°F (22.8°C), thus making it a warm period. Combined with a high rainfall trend and maximum UV index of 11, this time of the year could be considered less favourable. The worst time to visit St. Augustine »
Spring weather in St. Augustine
Spring in St. Augustine sees average high temperatures scaling from 73°F (22.8°C) to 84°F (28.9°C) while the lows stay within a soothing range of 53°F (11.7°C) to 65°F (18.3°C). Sea temperatures during this season range from 66°F (18.9°C) to 75.8°F (24.3°C), perfect for beach outings. Rainfall is relatively moderate with 8 days of rain accounting for 3.9" (99mm) in March and 2.6" (66mm) in April. The advantage of ample daylight and sunshine, incorporated with reasonably warm temperature makes Spring a delightful season in St. Augustine. Spring weather in St. Augustine »
Summer weather in St. Augustine
Characterised by warm and humid conditions, temperatures during the Summer reach up to 88°F (31.1°C) in June, 90°F (32.2°C) in July and 89°F (31.7°C) in August, while night drops between 71°F (21.7°C) to 73°F (22.8°C). Rainfall peaks during these months with up to 15 rain days accounting for 5.6" (142mm) in June, 5.7" (145mm) in July and a high of 6.5" (165mm) in August. Despite the rainfall, the ample hours of sunshine, ranging from 9 hours/day, provide enough room for outdoor activities. Summer weather in St. Augustine »
Autumn weather in St. Augustine
Autumn brings a gradual relief from the summer heat with temperatures dropping from 86°F (30°C) in September to 74°F (23.3°C) by November. Night temperatures also decrease from a warm 71°F (21.7°C) in September to a cooler 56°F (13.3°C) in November. Rainfall decreases to 2.3" (58mm) over 7 days in November, making this period more conducive for outdoor sightseeing. Autumn weather in St. Augustine »
Winter weather in St. Augustine
Winter in St. Augustine is mild and comfortable with high temperatures dropping to a range between 66°F (18.9°C) to 68°F (20°C). Night temperatures can drop down to a chilly 49°F (9.4°C) in December and January. Rainfall remains steady during winter months with December and January seeing about 2.4" (61mm) over 7-8 days. With the UV index dropping to a comfortable 4, the winter season offers a pleasant respite from the harsh summer. Winter weather in St. Augustine »
Weather in January
Beginning the year, St. Augustine's weather breathes fresh optimism with mild temperatures and a moderate share of rainfall. It becomes the launching point with clear sunny days, creating a refreshing contrast to the wintry landscapes elsewhere in the United States. Weather in January »
Weather in February
As February takes center stage, St. Augustine sees a slow and steady progression in its climatic parameters. The trend indicates slightly warmer temperatures, longer daylight hours, and a fractionally higher amount of rainfall. More specifically, the rainfall averages around 3.1" (79mm) over 8 days, allowing for a blend of sunny and wet days. Weather in February »
Weather in March
In the glorious arrival of spring, the weather in St. Augustine witnesses a delightful transformation. Get ready to bask under an increasingly warmer sun as March unfolds. The mixed bag of weather, concurrently resulting in an increased rainfall measuring a consistent 3.9" (99mm) over 8 days, brings balance to the otherwise warming temperatures. Weather in March »
Weather in April
April ensures that St. Augustine's characters bathe in a blissful blend of extended sunshine hours and moderate rainfall. The city, bathed in the warmth of the spring sun, attracts nature enthusiasts as wildlife begins to thrive. Unsurprisingly, rainfall takes a backseat in April with an average rainfall of just 2.6" (66mm), the lowest for the first half of the year. Weather in April »
Weather in May
May gains prominence in St. Augustine as a prelude to the city's famous summer weather. The city starts transitioning from temperate to a tropical climate, with an observable increase in temperature and humidity. Interestingly, the average rainfall measures approximately 3.1" (79mm) throughout this month. Weather in May »
Weather in June
St. Augustine sees the full onset of the summer season by June. The climate is typified by long, sunny days and an upturn in average Sea Surface Temperatures. However, June's defining attribute would be the significant increase in rainfall, tallying up to around 5.6" (142mm). Weather in June »
Weather in July
As St. Augustine, Florida enters the hottest period of the year, July comes in with its peak summer schedule. High temperatures and sea surface temperatures set the stage for beach activities and water sports. A notable aspect is the highest average rainfall during the year, which measured 5.7" (145mm), manifested over 15 days. Weather in July »
Weather in August
August maintains the summer spirit in St. Augustine, albeit with a slightly pronounced tropical feel. The city remains basked in sunshine, interspersed with welcome breaks in the form of showers. The city witnesses the highest average rainfall during this month, summing up to 6.5" (165mm) spread across 15 days. Weather in August »
Weather in September
As summer winds down, September brings a combinative climatic pattern to St. Augustine, Florida. The city starts witnessing shortened daylight hours, yet the weather retains the warmth typical of the summer months. However, the month bagged highest rainfall measuring an impressive 7.5" (191mm). Weather in September »
Weather in October
In October, St. Augustine transitions towards a milder climate, marking the beginning of autumn in the city. The frequency of rainfall drops significantly as drier days become more prevailing. October's dominant feature would be a diminished rainfall measuring an average of 4.6" (117mm) in comparison to the summer months. Weather in October »
Weather in November
November offers a calming influence on St. Augustine's weather, with a noticeable decrease in average daily warmth. As the city prepares to bid adieu to autumn, it witnesses an appreciable lessening of rainfall. Observers noticed an average rainfall of around 2.3" (58mm) distributed over 7 days this month. Weather in November »
Weather in December
As St. Augustine welcomes the winter season, December brings a significant change in the city's weather. The mild chill bracing the air, the shortened daylight hours, and the chilling sea surface temperatures signal the onset of winter. Weather in December »
Updated: Jul 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the month that records the lowest temperatures, with averages ranging from a high of 66°F (18.9°C) to a low of 46°F (7.8°C).
How much does it rain?
In St. Augustine, during the entire year, the rain falls for 116 days and collects up to 50" (1270mm) of precipitation.
What is the month with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 4.
What month is the ocean coldest?
February is the month with the coldest seawater, with an average ocean temperature of 64.2°F (17.9°C).
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the month with the most sunshine?
The months with the most sunshine are March through August, with an average of 9h of sunshine.
When are the longest days in St. Augustine?
The month with the longest days is June, with an average of 14h and 0min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 11.
What is the warmest month?
Temperature records mark July as the warmest month, with highs averaging 90°F (32.2°C) and lows at 72°F (22.2°C).
When is the ocean warmest?
August is the month with the warmest seawater, with an average ocean temperature of 83.8°F (28.8°C).
What is the wettest month?
September is the month with the most rainfall. Rain falls for 13 days and accumulates 7.52" (191mm) of precipitation.
What is the driest month?
November is the month with the least rainfall. Rain falls for 7 days and accumulates 2.28" (58mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year in St. Augustine, with an average of 10h and 18min of daylight.
What is the month with the least sunshine?
With an average of 6h of sunshine, December has the least sunshine of the year.
Average temperature
St. Augustine, FL
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (66°F).
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average rainfall
St. Augustine, FL
The wettest month (with the highest rainfall) is September (7.5").
The driest month (with the least rainfall) is November (2.3").
Average rainfall days
St. Augustine, FL
- Average rainfall days in January:
8 days - Average rainfall days in February:
8 days - Average rainfall days in March:
8 days - Average rainfall days in April:
6 days - Average rainfall days in May:
8 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
15 days - Average rainfall days in September:
13 days - Average rainfall days in October:
8 days - Average rainfall days in November:
7 days - Average rainfall days in December:
7 days
The months with the highest number of rainy days are July and August (15 days).
The month with the least rainy days is April (6 days).
Average sea temperature
St. Augustine, FL
The best month for swimming (with the highest average sea temperature) is August (83.8°F).
The coldest months (with the lowest average sea temperature) are January and February (64.3°F).
Average daylight / Average sunshine
St. Augustine, FL
- Average daylight in January:
10h and 3min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 5min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - Average daylight in December:
10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
The months with the most sunshine are March, April, May, June, July and August (Average sunshine: 9h).
The month with the least sunshine is December (Average sunshine: 6h).
Average UV index
St. Augustine, FL
The months with the highest UV index are June and July (UV index 11).
The months with the lowest UV index are January and December (UV index 4).
St. Augustine, Florida, USA
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