The climate of Saint Johns

The current climate in Saint Johns features temperatures ranging from a high of 18°C to a low of 9°C throughout the year. The average yearly temperature is around 14°C. At night, temperatures in the colder months average around 5°C and in the warmer months around 13°C.

Average temperatures and precipitation

This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Saint Johns, Isle of Man.

Temperature records

The highest temperature recorded in Saint Johns in recent years was 29°C in September 2022. The lowest daytime temperature recorded was 0°C in February 2018.

Precipitation and snowfall

On average, Saint Johns gets 887 mm of precipitation each year. Of this, about 2,2 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.

Best time to visit Saint Johns?

The best time to visit Saint Johns for mild to warm weather is June up to September. You might get some rain, but the temperatures are just right to explore Saint Johns.

Climate Table of Saint Johns

The climate table of Saint Johns shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Temp. max (°C)	9	9	10	12	14	17	18	18	17	14	12	10
Temp. min (°C)	6	5	5	6	9	12	13	14	12	10	8	7
Precipitation
Precipitation (mm)	89	73	65	43	51	51	67	72	64	112	99	101
Snow (cm)	0,1	0,7	1,4	0	0	0	0	0	0	0	0	0
UV Index	2	3	4	6	7	7	7	6	5	3	1	1

Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.

Temperature charts

These charts display the average temperatures in Saint Johns, Isle of Man. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Average Temperature per Month in Saint Johns

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Yearly Temperature in Saint Johns

Precipitation charts

These charts show the average amount of precipitation in Saint Johns, Isle of Man. 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.

Average Precipitation per Month in Saint Johns

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Total Yearly Precipitation in Saint Johns

Average Snowfall per Month in Saint Johns

Total Yearly Snowfall in Saint Johns

UV index chart

This chart shows the average UV index per month in Saint Johns, Isle of Man. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.

Average UV Index per Month in Saint Johns

Weather experiences in Saint Johns

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Average weather in Saint Johns by month

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