Live Weather & Forecast

Weather in Port Saint John

Florida, United States · Real-time conditions & 3-day outlook

Flag of United States
Partly cloudy
27°C
Feels like 28°C
81°F / Feels 83°F
Partly cloudy
Port Saint John, Florida
🌞 Daytime
Updated: 2026-04-12 16:30
💧
Humidity
45%
💨
Wind
19.4 km/h E
🌬️
Wind Gust
22.4 km/h
🌡️
Pressure
1026 mb
👁️
Visibility
11 km
☀️
UV Index
5.7 (Moderate)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
50%
💦
Dew Point
16.3°C
🌐
Wind Degree
86°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
138.9 μg/m³
NO₂
2.1 μg/m³
O₃
103 μg/m³
SO₂
1.4 μg/m³
PM 2.5
8.4 μg/m³
PM 10
12.6 μg/m³

Weather Alerts 1

Met · Moderate · Expected
Rip Current Statement issued April 12 at 2:22AM EDT until April 14 at 2:00AM EDT by NWS Melbourne FL

* WHAT...Dangerous rip currents and rough surf. * WHERE...Coastal Volusia, Coastal Brevard, Coastal Indian River, Coastal Saint Lucie, and Coastal Martin Counties. * WHEN...Through late Monday night. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. Entering the surf is strongly discourag...

Today's Hourly Forecast

24-hour breakdown for Port Saint John, Florida

12 AM
Clear
20°
Clear
💧 70% 💨 9 km/h
1 AM
Clear
20°
Clear
💧 75% 💨 9.4 km/h
2 AM
Clear
19°
Clear
💧 75% 💨 8.6 km/h
3 AM
Partly Cloudy
19°
Partly Cloudy
💧 74% 💨 8.3 km/h
4 AM
Clear
19°
Clear
💧 77% 💨 9 km/h
5 AM
Clear
19°
Clear
💧 75% 💨 9.4 km/h
6 AM
Partly Cloudy
19°
Partly Cloudy
💧 76% 💨 10.1 km/h
7 AM
Partly Cloudy
19°
Partly Cloudy
💧 73% 💨 10.1 km/h
8 AM
Overcast
20°
Overcast
💧 76% 💨 11.2 km/h
9 AM
Partly Cloudy
21°
Partly Cloudy
💧 71% 💨 15.8 km/h
10 AM
Partly Cloudy
22°
Partly Cloudy
💧 66% 💨 18.4 km/h
11 AM
Partly Cloudy
23°
Partly Cloudy
💧 63% 💨 19.1 km/h
12 PM
Partly Cloudy
24°
Partly Cloudy
💧 61% 💨 19.1 km/h
1 PM
Sunny
25°
Sunny
💧 58% 💨 19.8 km/h
2 PM
Sunny
25°
Sunny
💧 53% 💨 19.8 km/h
3 PM
Sunny
25°
Sunny
💧 56% 💨 19.8 km/h
4 PM
Partly cloudy
27°
Partly cloudy
💧 45% 💨 19.4 km/h
5 PM
Sunny
24°
Sunny
💧 58% 💨 19.1 km/h
6 PM
Cloudy
23°
Cloudy
💧 65% 💨 17.6 km/h
7 PM
Overcast
21°
Overcast
💧 69% 💨 14.4 km/h
8 PM
Overcast
21°
Overcast
💧 80% 💨 11.2 km/h
9 PM
Overcast
21°
Overcast
💧 72% 💨 10.8 km/h
10 PM
Overcast
20°
Overcast
💧 73% 💨 10.8 km/h
11 PM
Cloudy
20°
Cloudy
💧 79% 💨 11.5 km/h

3-Day Forecast

Daily overview for Port Saint John, Florida

Today
Partly Cloudy
Partly Cloudy
26° / 18°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.4
🌅 Sunrise: 07:01 AM
🌇 Sunset: 07:48 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Partly Cloudy
Partly Cloudy
25° / 20°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 18 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.6
🌅 Sunrise: 07:00 AM
🌇 Sunset: 07:48 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
Overcast
24° / 19°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 16.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.5
🌅 Sunrise: 06:59 AM
🌇 Sunset: 07:49 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Port Saint John

Plan your trip to Port Saint John, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Port Saint John 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Port Saint John?
Current conditions in Port Saint John: Partly cloudy, temperature 27°C, humidity 45%.
What is the best time to visit Port Saint John?
The best time to visit Port Saint John is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Port Saint John?
Port Saint John is located at approximately 28.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Port Saint John?
The wettest period in Port Saint John is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Port Saint John?
For visits to Port Saint John during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Port Saint John in?
Port Saint John is located in United States, in the state of Florida.
What are the public holidays in Port Saint John in 2026?
View the 2026 public holidays for Port Saint John on our Holidays page.
What are the GPS coordinates used for the weather forecast in Port Saint John?
The weather forecast for Port Saint John uses coordinates 28.4762, -80.7791.