Saint John weather and climate
Saint John weather and climate
Day
30 °C
Night
24 °C
Sea
28 °C
Precipitation
77 mm
in month
Rainy days
10 days
in month
Daylight
13 hours
average
Sunshine
8 hours
average
Humidity
76 %
Day
30 °C
Night
24 °C
Sea
28 °C
Precipitation
77 mm
in month
Rainy days
10 days
in month
Daylight
13 hours
average
Sunshine
8 hours
average
Humidity
76 %
Weather charts for Saint John
We make the most from 40 years of historical weather data to predict the best weather conditions.
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Weather overview for Saint John
Weather overview
Saint John (U.S. Virgin Islands) is a place with a tropical climate. The day temperatures range from 28 °C (82 °F) in January to 31 °C (88 °F) in August. The driest month is March with just 7 days of rain, on the contrary, the month when it rains the most is November with 14 days of rain. The highest night temperatures could be experienced in July with 24 °C (75 °F), the lowest in February with 21 °C (70 °F). The highest sea temperatures in Saint John are in September with 29 °C (84 °F) and the lowest in February with 26 °C (79 °F).
January weather
The descent of the sea temperature can be observed, with its value being 26 °C (79 °F) in Saint John, while the minimum of the day temperature can be noticed in January. The descent of the number of rainy days can be observed, with its value of 10 days, and the rainfall amount descents similarly to the previous month too. The descent of the night temperature can be observed, with its value of 21 °C (70 °F). The number of sun hours (without clouds) rise's start could be observed.
February weather
The minimum of the sea temperature can be noticed, the value of this measure is 26 °C (79 °F) in Saint John, and the minimum of the night temperature is observable too in this month. The number of rainy days continues to descent, the value of this measure is 10 days, while the minimum of the rainfall amount is observable in this month.
March weather
The minimum of the number of rainy days can be noticed, with its value being 7 days in Saint John, while the beginning of the rise of the rainfall amount could be noticed in March. The beginning of the rise of the day temperature could be noticed, the value of this measure is 28 °C (83 °F). The humidity reaches its minimum, with its value of 73 %. The number of sun hours (without clouds) reaches its maximum, with its value being 9 hours.
April weather
The beginning of the rise of the sea temperature could be noticed, with its value being 26 °C (80 °F) in Saint John, while the day temperature continues to rise, the value of this measure is 29 °C (84 °F). The number of rainy days rise's start could be observed, with its value of 8 days, while the rainfall amount rises similarly to the previous month, the value of this measure is 85 mm (3.34 in). The night temperature starts to rise in April.
May weather
The rise of the day temperature can be observed, its value is 30 °C (85 °F) in Saint John, and the rise of the sea temperature can be observed too, with its value being 27 °C (81 °F). The number of rainy days rises similarly to the previous month, with its value being 11 days, and the rainfall amount rises similarly to the previous month too, with its value being 121 mm (4.75 in). The night temperature rises similarly to the previous month, with its value being 23 °C (73 °F). The beginning of the descent of the number of sun hours (without clouds) could be noticed in this month.
June weather
The sea temperature continues to rise, with its value being 28 °C (82 °F) in Saint John, and the day temperature continues to rise as well, the value of this measure is 30 °C (87 °F). The rainfall amount starts to descent, the value of this measure is 77 mm (3.02 in), and the number of rainy days starts to descent too. The night temperature rises similarly to the previous month, its value is 24 °C (75 °F). The maximum of the day length can be noticed in this month.
July weather
The rainfall amount rise's start could be observed, with its value being 91 mm (3.59 in) in Saint John, and the number of rainy days rise's start could be observed too in July. The maximum of the night temperature is observable, its value is 24 °C (75 °F). The wind speed reaches its maximum, with its value being 5.
August weather
The day temperature reaches its maximum, with its value being 31 °C (88 °F) in Saint John. The number of rainy days continues to rise, with its value of 12 days, and the rainfall amount rises similarly to the previous month as well, with its value being 113 mm (4.46 in).
September weather
The maximum of the sea temperature can be noticed, with its value being 29 °C (84 °F) in Saint John. The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value of 8 hours. The rainfall amount rises similarly to the previous month, its value is 132 mm (5.19 in).
October weather
The number of rainy days starts to rise, with its value of 13 days in Saint John. The day temperature starts to descent, with its value of 30 °C (87 °F), and the night temperature descent's start could be observed as well, with its value of 23 °C (74 °F). The minimum of the wind speed can be noticed. The maximum of the humidity is observable, with its value being 77 %.
November weather
The day temperature continues to descent, with its value of 29 °C (85 °F) in Saint John, while the beginning of the descent of the sea temperature could be noticed in November. The maximum of the number of rainy days is observable, with its value being 14 days, and the rainfall amount reaches its maximum too, with its value being 145 mm (5.71 in). The night temperature continues to descent, the value of this measure is 23 °C (73 °F). The minimum of the number of sun hours (without clouds) is observable.
December weather
The day temperature continues to descent, the value of this measure is 28 °C (82 °F) in Saint John, and the sea temperature continues to descent too, its value is 27 °C (80 °F). The number of rainy days starts to descent, with its value of 13 days, and the rainfall amount starts to descent as well, its value is 105 mm (4.15 in). The minimum of the day length is observable in December. The night temperature continues to descent.
FAQs
Are there good conditions to visit in Saint John in January?
January is the best month to visit Saint John. The daily temperatures in this month reach pleasant 28 °C (82 °F). The temperature of the sea will be perfect at 26 °C (79 °F). At night, temperatures hover around a pleasant 21 °C (70 °F).
What is the sea temperature in February in Saint John?
The sea will reach 26 °C (79 °F) in February in Saint John. It will be comfortable for you to spend even a long time in a sea warm like this, there will be people for whom this temperature will be too low or too high.
Is it hot in Saint John in March?
In Saint John in March, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in April in Saint John?
In April in Saint John, the average daily temperatures will be 29 °C (84 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
What is the night temperature in Saint John in May?
The average night temperature in May in Saint John is 23 °C (73 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
Is June part of the wet season in Saint John?
No, there is no wet season in Saint John in June - you can expect 10 days of rain during the month.
What is the average number of rainy days in Saint John in July?
In Saint John in July, we can expect 12 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.7 days of the week, or in general - 38 % days.
How many hours of sun to expect in August in Saint John?
There is an average length of sunshine of 8 hours per day in August in Saint John.
How windy is it in Saint John in September?
In September in Saint John, there will be an average wind scale of 4.
What is the humidity in December in Saint John?
In December in Saint John, expect humidity around 76 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.