The weather in January in Saint John

It's hot in January in Saint John with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 23°C and 25°C.

January is a good month to be in Saint John for sunny weather. You’ll have high temperatures and not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Saint John, Grenada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 32°C in 2022, Saint John reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 26°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 26°C.

Rainfall amount

In January, there is an average of 62 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the East.

Daily weather in January for Saint John

Click on any day in January to get detailed info about the usual weather on that day in Saint John. Check out the historical temperatures and precipitation over the past 10 years on this day.

January weather comparison

  Saint John New York
Average temperature 30°C 5°C
Max. temperature 30°C 11°C
Min. temperature 23°C -5°C
Total precipitation 62 mm 97 mm
Rainy days 10 days 12 days

Start of January

The month of January starts in Saint John with hot temps, averaging around 30°C during the day and nights around 25°C.

Mid January

By mid-January, daytime temps stay steady at around 30°C, with nights around 25°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of January

By the end of January, the average daytime temperature in Saint John is around 30°C, while nighttime temps are about 25°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Saint John for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in January in Saint John, Grenada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in January in Saint John

Temperature in January in Saint John over the years

Precipitation charts

These charts show the average amount of precipitation in January in Saint John, Grenada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in January in Saint John

Total precipitation in January in Saint John over the years

Daily UV index in January in Saint John

This chart shows the average daily UV index in January in Saint John, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in January in Saint John

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Average weather in Saint John by month

Click on a month below to see detailed weather info for Saint John. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.