Saint Augustine, United States experiences average highs of 25°C (77°F) and lows of 20°C (68°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Saint Augustine, United States Weather & Climate 2026
Monthly climate averages for Saint Augustine, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.9/10
Best: March, April, May, October, November
UV Index
6
High
Temperature 25°C / 20°C
Feels Like 27°C / 21°C
Rainy Days 12
Rainfall 95 mm
Sunshine 10 h
Humidity 78%
Wind Speed 19 km/h
Dew Point 18°C
Hottest Month
30°C
July
Avg Low26°C
Rain21days
Coldest Month
12°C
January
Avg High18°C
Rain8days
Driest Month
7days
February
Avg High21°C
Avg Low14°C
Windiest Month
21 km/h
April (Gusts 37)
Sea Temperature
16°C – 29°C
Warmest water: August (
29.3°C
)
Worst Time to Visit
Consider avoiding July, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:25
Daylight 14.1h
Sunset 20:29
Live conditions—
Saint Augustine on the map · live conditions
Saint Augustine, United States
- Continent
- Americas
- Country
- United States
- City
- Saint Augustine
- Population
- 13K
- Elevation
- 0 m
- Coordinates
- 29.89°, -81.31°
Seasonal Breakdown
Spring
Mar–May
Avg High 24°C
Avg Low 19°C
Rain 8 days/mo
3/3 best months
Summer
Jun–Aug
Avg High 30°C
Avg Low 25°C
Rain 21 days/mo
Autumn
Sep–Nov
Avg High 25°C
Avg Low 22°C
Rain 12 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 20°C
Avg Low 14°C
Rain 7 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 18°C / 12°C . Feb: 21°C / 14°C . Mar: 22°C / 16°C . Apr: 24°C / 19°C . May: 27°C / 22°C . Jun: 29°C / 25°C . Jul: 30°C / 26°C . Aug: 30°C / 26°C . Sep: 28°C / 25°C . Oct: 26°C / 22°C . Nov: 22°C / 18°C . Dec: 20°C / 15°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 61 mm. Feb: 56 mm. Mar: 47 mm. Apr: 66 mm. May: 79 mm. Jun: 123 mm. Jul: 129 mm. Aug: 152 mm. Sep: 181 mm. Oct: 124 mm. Nov: 63 mm. Dec: 55 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 79%. Mar: 74%. Apr: 74%. May: 76%. Jun: 81%. Jul: 83%. Aug: 83%. Sep: 81%. Oct: 76%. Nov: 76%. Dec: 78%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 20 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 20 km/h . Jun: 18 km/h . Jul: 17 km/h . Aug: 17 km/h . Sep: 19 km/h . Oct: 21 km/h . Nov: 20 km/h . Dec: 20 km/h .
Sunshine
Sunshine
Sunshine: Jan: 8h. Feb: 9h. Mar: 10h. Apr: 11h. May: 12h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 9h. Nov: 8h. Dec: 8h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 16°C . Feb: 17°C . Mar: 19°C . Apr: 22°C . May: 25°C . Jun: 27°C . Jul: 29°C . Aug: 29°C . Sep: 29°C . Oct: 25°C . Nov: 22°C . Dec: 19°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 7. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 5. Dec: UV 4.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 11 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 31°C | Jul · 30°C |
| Coldest month | Jan 2025 · 9°C | Jan · 12°C |
| Wettest month | Aug 2025 · 268 mm | Sep · 181 mm |
| Windiest month | Oct 2025 · 23 km/h | Apr · 21 km/h |
Month-by-Month Weather Table
January
Good 
February
Good March best
Excellent April best
Excellent May best
Excellent June
Wet July
Wet August
Wet September
Wet October best
Excellent November best
Excellent December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 18°C / 12°C | 17°C / 9°C | 8days (61 mm) Wet | 7.7h Good | 73% Muggy | 4.1 Moderate | Good | View Details |
| February | 21°C / 14°C | 21°C / 13°C | 7days (56 mm) Good | 8.7h Good | 79% Humid | 5.3 High | Good | View Details |
| March best | 22°C / 16°C | 23°C / 15°C | 7days (47 mm) Good | 9.6h Good | 74% Muggy | 6.6 High | Excellent | View Details |
| April best | 24°C / 19°C | 26°C / 19°C | 7days (66 mm) Good | 10.8h Excellent | 74% Muggy | 7.8 Very High | Excellent | View Details |
| May best | 27°C / 22°C | 31°C / 24°C | 10days (79 mm) Wet | 11.6h Excellent | 76% Humid | 7.9 Very High | Excellent | View Details |
| June | 29°C / 25°C | 35°C / 28°C | 18days (123 mm) Wet | 11.5h Excellent | 81% Humid | 8.3 Very High | Wet | View Details |
| July | 30°C / 26°C | 37°C / 30°C | 21days (129 mm) Wet | 11.7h Excellent | 83% Humid | 8.2 Very High | Wet | View Details |
| August | 30°C / 26°C | 36°C / 30°C | 23days (152 mm) Wet | 10.9h Excellent | 83% Humid | 7.9 Very High | Wet | View Details |
| September | 28°C / 25°C | 33°C / 28°C | 18days (181 mm) Wet | 9.7h Good | 81% Humid | 6.9 High | Wet | View Details |
| October best | 26°C / 22°C | 28°C / 23°C | 12days (124 mm) Wet | 9.4h Good | 76% Humid | 5.7 High | Excellent | View Details |
| November best | 22°C / 18°C | 23°C / 17°C | 7days (63 mm) Good | 8.3h Good | 76% Humid | 4.6 Moderate | Excellent | View Details |
| December | 20°C / 15°C | 20°C / 13°C | 7days (55 mm) Good | 7.7h Good | 78% Humid | 3.8 Moderate | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Saint Augustine are March, April, May, October, November, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Saint Augustine, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Saint Augustine is July, with average daytime highs of 30°C (86°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Saint Augustine is January, with average overnight lows of 12°C (54°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Saint Augustine is September, averaging 181mm of precipitation across 18 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Saint Augustine runs through August, July, June, September, with the heaviest rainfall in August. Based on 10-year averages for Saint Augustine.
Saint Augustine receives approximately 118 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Saint Augustine.
The least favorable months to visit Saint Augustine are July, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider March, April, May, October, November instead.
The annual average UV index in Saint Augustine is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Saint Augustine is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in April, May, June, July, August, September, October, November average 26°C (79°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Saint Augustine are 19 km/h (12 mph). The windiest month is April with peak winds reaching 21 km/h (13 mph) (gusts up to 37 km/h / 23 mph).
Saint Augustine averages 5 clear-sky days per month with overall cloud cover around 56%. The clearest skies occur in March.
The annual average dew point in Saint Augustine is 18°C (64°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Saint Augustine has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Saint Augustine ranges from 21°C (70°F) to 27°C (81°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Saint Augustine, with a climate score of 4.6/10. Consider visiting during March, April, May, October, November instead for better conditions.
For June in Saint Augustine, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 29°C (84°F) and 18 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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