Saint Augustine, Florida Weather History

Florida, United States  •  45 yrs data 📍 29.8881°N, 81.3745°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Jul
Avg 83.8°F
Min 75.5°F
Max 92.2°F
Coldest Month
❄️
Jan
Avg 57°F
Min 39.8°F
Max 74.2°F
Wettest Month
🌧️
Aug
179 mm
Driest Month
🏜️
Nov
68 mm
Most Humid
💧
Aug
82%
Least Humid
🌬️
May
75%
Highest Ever
🌡️
99.1°F
Jun 2022
Lowest Ever
🧊
23.7°F
Jan 1985
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in Saint Augustine Across Seasons

❄️ Winter in Saint Augustine

January is Saint Augustine's coldest month, with average lows reaching 39.9°F.
🌡️ December to February (avg)  ·  42.3°F75.4°F

🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.

☀️ Summer in Saint Augustine

Summer temperatures in Saint Augustine peak in July, climbing to 92.3°F.
🌡️ June to August (avg)  ·  74.3°F91.8°F

🌤️ Early mornings and evenings are most comfortable during this Hot Summer season.

🌧️ Rainy Season in Saint Augustine

Saint Augustine sees its highest rainfall in August, receiving approximately 179 mm of precipitation.
🌧️ June to September (avg)  ·  up to 179 mm

☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ Saint Augustine Monthly Temperature Guide

Jul is the hottest month in Saint Augustine, with average highs reaching 92.2°F, while Jan is the coldest with lows dropping to 39.8°F.

Temperatures rise steadily from spring, peak in Jul, and gradually decline through fall into winter.

These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in Saint Augustine

Saint Augustine receives its highest rainfall in Aug, while humidity peaks during summer months.
🌧️ Wettest: Aug — 179 mm ☀️ Driest: Nov — 68 mm

💧 Humidity peaks at 82% in Aug · annual avg 79%

🌍 Climate Summary

Avg Annual Temp:71.1°F
Avg Annual Rainfall:1339 mm
Avg Humidity:79%
Data Period:1981 – 2025

Saint Augustine Climate Overview

Saint Augustine has a warm subtropical climate with warm summers and mild winters.

Temperatures peak in Jul and drop to their lowest in Jan, while rainfall is highest during summer months.

Humidity remains high throughout the year creating warm and humid conditions.

📈 Yearly Trends

The warmest year in Saint Augustine's recorded history was 2024 (avg: 73.4°F), while the coldest year was 1983 (avg: 68.5°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

Saint Augustine's temperatures shows a slight warming trend over the past decade. The highest recorded temperature reached 99.1°F in Jun 2022, while the lowest dropped to 23.7°F in Jan 1985.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in Saint Augustine shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

🏙️ Other Cities in Florida

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❓ Frequently Asked Questions

What is the hottest month in Saint Augustine?
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Saint Augustine, Florida, with average high temperatures around 92.2°F.
What is the coldest month in Saint Augustine?
Jan is the coldest month in Saint Augustine, with average low temperatures around 39.8°F.
What is the rainiest month in Saint Augustine?
Aug receives the most rainfall with approximately 179 mm, while Nov is the driest with 68 mm.
What was the highest temperature ever recorded in Saint Augustine?
The highest recorded temperature was 99.1°F in Jun 2022. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Saint Augustine?
The lowest recorded temperature was 23.7°F in Jan 1985.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does Saint Augustine get?
Saint Augustine receives the most sunlight in May with an average solar radiation of 6.40 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in Florida.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.

📚 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Years: 45