Bermuda Weather

Published on July 7, 2021 by nilesh

Usual Bermuda Climate

If there is one word to describe Bermuda's weather or the climate, it would be 'sub-tropical'. While the summer months (May - October) are quite comfortable, due to high humidity it can get unpleasantly warm at times on a sunny day. So long walks or hikes could be exhausting during such time. 

Summer is the high tourist season in Bermuda. Water temperature remains comfortable for enjoyable swims and snorkeling. Winter months are from December through March. Although the temperature drops, water visibility becomes high in winter. So scuba diving or even snorkeling can be a rewarding experience in winter, but one would require a wetsuit to combat the cold water.

March/April is the spring time in Bermuda (this is when the humpback whale migration takes place in the Atlantic surrounding the island) and October/November is the fall season when the temperatures still remain warm enough for various water based activities. 

Bermuda Weather by Month

From April the average monthly temperature starts to rise and goes up to mid 70s by May (when the summer actually starts) and peaks in the month of July/August going up to 80s and remains there until October. Humidity during peak summer also goes up to an uncomfortable zone of 80s. Usually it rains the least in summer (about 9-15 days on an average but in short spurts).

From December the average temperature in Bermuda starts dropping from high 60s (Fahrenheit) and comes down to low 60s in February and March. This is the winter time in the island. Sea temperature that remains at high 60s in December, drops to low 60s in February/March … this time is not quite suitable for swimming unless one wears a wetsuit.

However humidity remains low (around 73%) during winter, but number of rainy days is highest in winter (it rains for about 15 to 17 days in a month, but usually in short spurts), and when it rains it can really feel cold at nights or early mornings… you need a good jacket.

Below is a chart showing the average monthly temperatures, rain fall and humidity in Bermuda. The average sea temperature apparently shows higher in most months because the difference between high (day-time) and low (night-time) air temperatures can be substantial. 

Click on a month below to see daily average temperatures and other weather details for the month as well as pictures of a typical day in the month. 

Avg. for MonthAir Temp (°F)Sea Temp (°F)Rain (inch)Rainy DaysHumidity (%)
January66.067.56.31973
February65.267.05.21574
March64.967.06.01772
April68.170.42.61274
May72.775.32.9976
June77.880.64.61580
July81.583.95.01577
August82.585.75.11676
September80.784.36.41575
October76.178.65.51473
November71.373.94.61773
December68.169.34.11573
Data sourced from Bermuda Weather Service (weather.bm) and averaged over 5 years 

Air Temperatures

May to October is the summer season in Bermuda. Between April to November (spring, summer and fall) the average monthly temperature varies between 70°F (21°C) to about 83°F (28°C). However the humidity during this time, particularly between May to October may be considerably high and can go well over 80 percent during the day time on some days.

Since the warm waters of gulf stream passes near Bermuda, you will never find snow, frost or ice in the island although the island is more than 1,000 miles north of Caribbean islands. However, Bermuda is not always warm. December through March is the winter time in Bermuda and temperature remains quite cool. Air temperature around this time is similar to the Northeastern spring season. Average monthly air temperature varies between 65°F (18°C) to about 70°F (21°C). You will need to wear a jacket during early mornings and evenings. Otherwise the day time is quite pleasantly cool. 

Winter season in Bermuda is ideal for playing Golf, humidity remains low and it's easy to get tee time due to low tourist demands. The hotel rates in Bermuda also go down considerably during winter. Water visibility is excellent during winter and ranges from 150 feet to 200 feet. You will however need to wear wetsuits if you are planning to brave the waters in winter for scuba diving or snorkeling. 

Water Temperatures 

Over 90% of the tourists come to Bermuda to enjoy the pink sands, turquoise water and many water based activities. And the water temperature plays a key role in vacation planning as the temperature varies over the year and so does water visibility. 

During winter (i.e. December to March) the sea temperature dips to 60s, it starts rising in April/May when the summer begins and goes up to 80s during July - September. The temperature starts to go down again from November onwards as the winter sets in. 

Check out Water Temperature and Visibility to know average water temperature by month as well as water visibility. 

Rainfall, Sky Conditions, Wind 

There is no designated monsoon or rainy season in Bermuda as it is not part of the Caribbean region. There is however possibility of rains in every month. There are occasional showers which generally do not last for long. In some months you may see more rainfall than the other, but there is generally no fixed pattern. On an average, September is the wettest month of the year with an approximate rainfall of about 6.4 inches, while April is the driest month with about 2.6 inches rainfall. 

There is no fresh water lake in Bermuda. So for water supply, the residents to a large extent depend on stored rain water. They use the limestone roofs to filter the rain water and usually store them into underground reservoir. Then pump them to overhead tanks to get water supply in the house. 

Bermuda's annual rainfall is enough for the homes to get year-round water supply and also for sustaining the lush green foliage of the island. Check out Bermuda Rainfall Chart to know the maximum and minimum rain falls in a month and possibility of thunder storms. 

Check out Bermuda Sky to know the details about possible sky conditions like average daily sunshine hours, cloudiness and thunderstorm possibility by month. 

Check out Bermuda Wind Chart to know the average wind speed and wind directions in Bermuda by month. 

Data for the above charts are sourced from Bermuda Weather Service (weather.bm) 

Tide Time and Forecast 

Several small beaches in Bermuda are available only in low tide and disappear in high tide. So low and high tide timings are important if you are visiting such beaches. Marine conditions are important if you plan for sailing, scuba diving or even offshore snorkeling. 

Visit this page to know about marine forecast for the next few days as well as high and low tide timings for two days (For western waters, add 10 minutes to the tide timings shown for St. George). 

Hurricanes in Bermuda 

Hurricanes are the strong storms that go in circles. Hurricane season in Bermuda is from June to November. As per the historical records, September and October are the months when most hurricanes have struck Bermuda in the past. Usually, hurricanes in Bermuda are not as frequent or dangerous as in the Caribbean islands. They hit the US coast more than they hit Bermuda. 

The reefs surrounding the Bermuda waters act as safeguards for such hurricanes. Also, over the years, the Bermuda government has implemented a series of measures including advance alerts and preparedness, procedures for Do's and Don'ts and more to counter such adverse situations. 

It has been observed that on an average a severe hurricane only hits the island once in every 6-7 years. The other types of mild hurricanes which strike once every two years on an average, make minor damages. 

However hurricanes that directly hit the island do cause inconveniences other than damages. For example flights and cruises scheduled for Bermuda often get cancelled. All public transports cease to operate and so do shops and establishments and even the causeway that connects St. George. 

Check out Hurricanes in Bermuda to know about how hurricanes develop in the Atlantic ocean and impact Bermuda, types (categories) of hurricanes, safety measures taken by the island, hurricanes that hit or about to hit the island and the impact they caused or likely to cause. 

Best Time To Visit Bermuda 

So with all the weather information that you gathered so far from the above sections, which period do you think is the best time to visit Bermuda? Well I'm sure that all will not have the same answer. After all some may prefer winter over summer, and some may even like to enjoy the rains. 

Having said that, most visitors generally prefer the summers... this is the time when most attractions and activities in the island are open. However, March and April are actually great months to visit Bermuda because the temperature starts rising, although the water is not yet warm enough for a swim, it's a great time to visit the beaches and enjoy the sun. Hotel and tour rates are also lower during his period compared to the high tourist season (i.e. the summers). 

Check out Best Time To Visit Bermuda to get  more insights into the best time to go to Bermuda and about high and low seasons in the island and what you may expect during such time. 

Environment 

Bermuda is a suitable place for those who suffer from Hay Fever because the Rag weeds do not exist in Bermuda's air and pollens are quickly blown off to the sea. However, since the humidity in Bermuda is generally quite high, there is always mold, mildews and mites breeding which can have some adverse affect for those who are allergic to these.