St. Augustine, FL weather in May
In May, St. Augustine sees highs around 85°F and lows around 67°F: warm and often humid, with some rain. Rain falls on about 7 days.
- Normal high
- 85°F
- Normal low
- 67°F
- Wet days
- 7
- 3.7 in total
- Muggy days
- 15
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 83°F | 87°F |
| Normal low | 64°F | 71°F |
| Chance of a wet day | 22% | 30% |
| Sunrise / sunset | 6:42 am / 8:02 pm | 6:25 am / 8:20 pm |
| Daylight | 13.3 h | 13.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical May day
- 6 am70°Fdew point 64°F
- 9 am77°Fdew point 64°F
- Noon83°Fdew point 62°F
- 3 pm85°Fdew point 61°F
- 6 pm81°Fdew point 62°F
- 9 pm76°Fdew point 64°F
NOAA hourly normals (local standard time) from Jacksonville NAS (32 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph20 of 31
- Hot dayshigh 90°F or more5 of 31
- Muggy daysdaily mean dew point 65°F or more15 of 31
- Wet daysat least 0.01 in of rain or melted snow7 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 3.7 in; a dry May brings about 1.5 in and a wet one about 4.8 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How May varies from year to year
- Warmest May, 1991-20202003: average high 87°F
- Coolest May2013: average high 82°F
- Wettest May2009: 13.2 in
- Driest May1998: 0.3 in
- Highest reading98°F (May 29, 2000)
- Lowest reading41°F (May 6, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 80°F | 85°F | 89°F |
| Normal low | 61°F | 67°F | 72°F |
| Wet days | 7 | 7 | 12 |
| Comfortable days | 12 | 3 | 0 |
| Daylight | 12.9 h | 13.7 h | 14.0 h |
Highs change by +5°F from April and +4°F into June.
Nearby alternatives in May
- Warmer: Lakeland, FL134 mi · high 91°F · 8 wet days
- Cooler: Charleston, SC215 mi · high 79°F · 7 wet days
How St. Augustine ranks in May
- Normal high62nd warmest of 378 cities; 19th of 23 in Florida
- Wet days115th driest of 378
- Comfortable days285th most of 339
What to pack for St. Augustine in May
- Light, breathable clothing – highs near 85°F and about 15 muggy days
- A swimsuit – about 20 beach days
Heating and cooling
May has 1 heating degree days and 350 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How hot is St. Augustine in May?
The normal high is 85°F and the normal low is 67°F. From 1991 to 2020 the hottest May reading was 98°F (May 29, 2000).
Does it rain a lot in St. Augustine in May?
About 7 days in May have at least 0.01 in of precipitation, and the normal total is 3.7 in. The wettest May in 1991-2020 was in 2009 (13.2 in); the driest was in 1998 (0.3 in).
Is May a good time to visit St. Augustine?
May ranks 8th of 12 months on our comfort score for St. Augustine (53 out of 100). It has about 3 comfortable days and about 5 days at 90°F or hotter. The best months are February, March and November.
Where the numbers come from
- Temperature, rain and frost dates: St Augustine Lighthouse (USC00087826), 1.7 mi ESE of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Hastings 4NE (USC00083874), 13 mi SW of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Jacksonville NAS (USW00093837), 32 mi NW of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Jacksonville NAS (722065-93837), 32 mi NW of the city center, 20 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).