Saint John’s Weather Forecast

Current Conditions & 10-Day Outlook

Current Weather Conditions in Saint John’s

Saint John’s

Saint John Parish, Antigua And Barbuda

weather iconDrizzle
29°
Low 25°
High 30°

Hourly Saint John’s Weather Forecast

12 AMweather icon27°
1 AMweather icon26°
2 AMweather icon26°
3 AMweather icon26°
4 AMweather icon26°
5 AMweather icon26°
6 AMweather icon26°
7 AMweather icon26°
8 AMweather icon26°
9 AMweather icon26°
10 AMweather icon26°
11 AMweather icon25°
12 PMweather icon28°
1 PMweather icon29°
2 PMweather icon30°
3 PMweather icon30°
4 PMweather icon30°
5 PMweather icon30°
6 PMweather icon30°
7 PMweather icon30°
8 PMweather icon29°
9 PMweather icon28°
10 PMweather icon28°
11 PMweather icon27°
Wind
13kt E

Moderate wind.

13kt
NESW
Precipitation
80%

Very high chance of precipitation.

Saint John’s 10-Day Weather Outlook

Today's Weather in Saint John’s, Saint John Parish, Antigua And Barbuda

Thu, Jun 04

Showers svg
25°
30°

Fri, Jun 05

Showers svg
23°
30°

Sat, Jun 06

Showers svg
25°
30°

Sun, Jun 07

Showers svg
25°
30°

Mon, Jun 08

Showers svg
26°
30°

Tue, Jun 09

Showers svg
25°
30°

Wed, Jun 10

Showers svg
25°
30°

Thu, Jun 11

Showers svg
26°
30°

Fri, Jun 12

Showers svg
26°
30°

Feels like

29°

Feels warmer than actual temperature.

Pressure

1014 hPa

Expect clear and stable weather.

Humidity

61%

High humidity.

UV

9 - Very high

Take precautions.

Gusts

30kt

Max speed of wind gusts today.

Cloud Cover

23%

Partly cloudy, some clouds expected.

Daylight

13h 6m

Long days, short nights.

Rain

1.3mm

No rain, dry conditions expected.

Snowfall

0.0mm

No snowfall expected.

Current Air Quality in Saint John’s

PredictWind App

Get the app for the world’s most accurate hi-res weather forecasts.

PredictWind App

4.8

Stars

1M+ USERS / 30K RATINGS

Download for free now

About Saint John’s Weather

General

This page provides the current weather forecast for Saint John’s, Saint John Parish, Antigua And Barbuda, including hourly conditions, a 10-day outlook, wind speed and direction, precipitation, UV index, and air quality - giving you everything you need to plan your day in one view.

Forecast & Methodology

The forecast data on this page is sourced from the ECMWF open-source model - a reliable global model used widely across weather services worldwide. For sailors, boaters, and mariners who need greater accuracy and higher resolution, PredictWind's proprietary forecast models deliver precision down to 1km resolution, updated multiple times daily and validated against real-world observations. Sign up free to access PredictWind's advanced forecasts.

Sailing & Marine Conditions

Saint John’s weather forecasts on PredictWind are optimised for sailors and boaters who need precise, reliable wind and wave data for passage planning and day sailing. PredictWind is used by ocean racers, cruising sailors, and commercial vessel operators across Antigua And Barbuda and worldwide. For detailed marine conditions including wave height, swell period, and offshore wind forecasts, see the Saint John’s marine forecast.

Units

Wind speed is displayed in knots - the standard unit used by sailors, weather services, and maritime authorities. Temperature is shown in degrees Celsius. Use the toggle at the top of the page to switch between Celsius and Fahrenheit. Pressure is shown in hPa, rainfall in millimetres, and air quality is available in both US and EU AQI standards.