World Resorts USA St. Augustine Weather

St. Augustine weather in May

Weather in St. Augustine: May

Average day temperature: 84.5°F
Average night temperature: 69.8°F
Sea water temperature: 75.8°F
Number of sunny days: 13 days
Day length: 13.3 - 13.9 hours
Number of rainy days: 2 days
Precipitation totals: 0.8 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 96°F. At the same time the lowest night temperature was 64°F. Daily and nightly averages during May were 88.8°F and 72.1°F.

Sea water temperature in St. Augustine in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 76.9°F. The highest and lowest sea temperatures during the month were 80.8°F and 73.9°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are sunny but cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in St. Augustine in May is 0.8 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 5.9 mph It makes May one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.5.

Best time for vacation in St. Augustine

Sunniest months:
October 15 days
April 15 days
March 14 days
Warmest months:
July 88.6 °F
August 88.3 °F
June 87.0 °F
Warmest sea temp:
August 83.6 °F
September 82.8 °F
July 82.8 °F
Coldest months:
January 63.6 °F
December 66.5 °F
February 68.6 °F
Rainiest months:
July 5 days
September 4 days
August 4 days
Windiest months:
October 6.8 mph
January 6.7 mph
December 6.6 mph

St. Augustine on a weather map

St. Augustine
+61°F
W 6 mph
Feels like: +61°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
St. Augustine
Local time: 00:31
December 05, friday
0300
59°F
NW
6 mph
0600
59°F
N
8 mph
0900
66°F
N
8 mph
1200
72°F
NE
10 mph
1500
77°F
NE
10 mph
1800
75°F
NE
11 mph
2100
72°F
E
8 mph
December 06, saturday
0000
70°F
S
9 mph
Units of measurement: °C / °F