7 Day St John Weather Forecast

Rain
Tuesday
09/19 100%
Rain
Major hurricane conditions likely. Mainly cloudy and windy with heavy rain. Lows overnight in the upper 70s.
High 84° / Low 78°
Rain
Wednesday
09/20 100%
Rain
Major hurricane conditions likely. Showery rains containing strong gusty winds and heavy downpours at times. High 83F. SSE winds at 70 to 90 mph, decreasing to 60 to 80 mph. Chance of rain 100%. 3 to 5 inches of rain expected.
High 83° / Low 79°
Rain
Thursday
09/21 80%
Rain
Bands of heavy rain showers along with strong gusty winds, especially early. High 84F. Winds SSE at 20 to 30 mph. Chance of rain 80%. 2 to 3 inches of rain expected.
High 84° / Low 78°
Chance of Rain
Friday
09/22 70%
Chance of Rain
Considerable cloudiness with occasional rain showers. High around 85F. Winds SSE at 15 to 25 mph. Chance of rain 70%.
High 85° / Low 79°
Chance of Rain
Saturday
09/23 70%
Chance of Rain
Cloudy with occasional rain showers. High near 85F. Winds SSE at 15 to 25 mph. Chance of rain 70%.
High 85° / Low 79°
Chance of Rain
Sunday
09/24 50%
Chance of Rain
Partly cloudy skies during the morning hours will give way to occasional showers in the afternoon. High around 85F. Winds SE at 10 to 20 mph. Chance of rain 50%.
High 85° / Low 78°
Chance of Rain
Monday
09/25 60%
Chance of Rain
Overcast with rain showers at times. High around 85F. Winds SE at 10 to 20 mph. Chance of rain 60%.
High 85° / Low 79°
St John Weather

We get this question A LOT …

US Virgin Islands weather icon

Question:
“I’m traveling to St John next week and the forecast shows rain every day! Will it really rain every day?”

Answer:
Yes. But, don’t fret. Weather in the tropics means rain. But rain often comes in isolated showers …some only lasting a few minutes. It is not uncommon for one side of a bay to get a shower while the other side is sunny. And clouds will appear and disappear in just moments. So, expect the weather to report rain every day. It is in fact going to rain somewhere …hopefully not on you ; )

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St John Webcams

A GREAT way to gauge the current weather on St John is to look at St John webcams that are located across the island. Depending on the direction the weather is coming from ( usually East to West ) you can decide which side of the island might have the best conditions for your beach or snorkeling adventure!

See our complete list of St John Webcams

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St John Weather by Month

Here are some weather statistics to help you forecast what typically happens during each month on St John. Remember, these are historic averages. From year to year and season to season there may be slight/modest/extreme variation from these numbers.