Climate and monthly weather forecastBremerton, WA
Climate and monthly weather forecast
The climate of Bremerton
Bremerton, Washington, USA is primarily subjected to a Mediterranean climate, or Csb according to the Köppen climate classification. This classification is generally characterized by warm summers and mild, wet winters. Geographically situated on the west coast of the USA, this city experiences a significant degree of climatic variation throughout the year.Analyzing the climate data of Bremerton, it is revealed that the annual average high temperature ranges from 43.2°F (6.2°C) in December to 77.2°F (25.1°C) in August. While the lowest average temperature fluctuates from 34.9°F (1.6°C) in December to 53.6°F (12°C) in August. Hence, a cool to warm transition in temperature can be noticed from the colder months to the warmer months. Relative humidity also follows a similar trend, decreasing from 87% in December to 69% in July, indicating drier conditions during the warmer months.
Rainfall in Bremerton shows a gradual decrease as the year progresses, with the highest rainfall of 2.05" (52mm) in January and December, and the lowest of 0.28" (7mm) in July. The city gets a maximum of 15.3 days of rain in March and a minimum of 5.4 days in August. Unique to this climate is the almost negligible snowfall, showing 1.22" (31mm) in February and no snowfall from April through November.
The best time to visit Bremerton
Considering the comfortable temperature, lower rainfall, and maximum sunshine hours, the best time to visit Bremerton is from June to August. During this time, the city experiences an average high temperature from 69.4°F (20.8°C) to 77.2°F (25.1°C), minimum rainfall from 0.28" (7mm) to 0.51" (13mm), and sunshine duration from 9.5 hours to 10.7 hours. Coupled with lesser rainfall days from 5.4 to 9.7 days and a lower humidity level around 69% to 74%, these months provide ideal weather conditions for outdoor activities.The worst time to visit Bremerton
The least favorable time to visit Bremerton is during the colder months from November to February. The city experiences an average high temperature as low as 43.2°F (6.2°C) to 48.9°F (9.4°C) and nighttime lows from 34.9°F (1.6°C) to 39.6°F (4.2°C) during this time. Moreover, these months see the highest rainfall, from 1.5" (38mm) to 2.05" (52mm), and maximum rainfall days between 13.4 and 15 days. Additionally, these months provide fewer sunshine hours, ranging from 4.1 to 4.5 hours.Spring weather in Bremerton
In Bremerton, spring spans from March to May. During this period, the city experiences a distinctive rise in temperature, with average highs from 50.9°F (10.5°C) to 65.1°F (18.4°C) and lows from 37.2°F (2.9°C) to 45°F (7.2°C). Coinciding with the rise in temperature, the rainfall declines gradually from 1.06" (27mm) to 0.83" (21mm) with the rainfall days also decreasing from 15.3 days to 11.8 days. Sunshine hours increase noticeably from 6.3 hours to 9.2 hours.Summer weather in Bremerton
Summer in Bremerton is from June to August. This season brings about warm temperatures, with average highs from 69.4°F (20.8°C) to 77.2°F (25.1°C), and highs from 48.4°F (9.1°C) to 53.6°F (12°C). There is reduced rainfall, falling to a yearly minimum of 0.28" (7mm) in July with a minimum of 5.4 days in August. Furthermore, sunshine hours are at their peak during this period, reaching up to 10.7 hours in August.Autumn weather in Bremerton
Autumn, from September to November in Bremerton brings a gradual decrease in temperature, with average highs from 70°F (21.1°C) to 48.9°F (9.4°C), and average lows from 50.9°F (10.5°C) to 39.6°F (4.2°C). Rainfall begins to rise again from 0.59" (15mm) in September to 1.5" (38mm) in November. The number of rainy days also rises from 9.9 days to 15 days.Winter weather in Bremerton
Winter, from December to February in Bremerton is characterized by lower temperatures, with average highs from 43.2°F (6.2°C) to 46°F (7.8°C), and lows ranging from 34.9°F (1.6°C) to 35.2°F (1.8°C). The city has maximum average rainfall of 2.05" (52mm) in December and January. Moreover, these months witness the rare occurrence of snowfall in the city, with an average of 0.63" (16mm) in December and 1.22" (31mm) in February.Weather in January
Bremerton, Washington, is painted with a winter palette in January, showcasing chilly temperatures and bouts of precipitation. January ranks highest for relative humidity and rainfall amount, with an uptick in snowfall reaching 0.63" (16mm), marking it as second for this variable. Weather in January »Weather in February
February in Bremerton exhibits minor shifts, beginning with a slight drop in temperature from January, and carrying the blanket of winter. February maximizes snowfall both in terms of volume and number of snowfall days (2.8 days). Weather in February »Weather in March
March brings distinctive weather conditions compared to its neighbors, as Bremerton begins to thaw from its winter chill. A climb in general temperature can be observed, but humidity decreases. Rainfall volume lessens, but the number of rainy days surges to 15.3 days, the most in the year. Weather in March »Weather in April
Contrasting the previous month, April in Bremerton sees a significant drying out with rainfall amounts dropping down to 0.79" (20mm), the lowest throughout the year. Subtle temperature fluctuations accompany this drying period, with both day and night-time temperatures moderately rising. Weather in April »Weather in May
May signals the definitive end of Bremerton's winter as its weather ushers in the warmth of spring in full swing. This month distances itself from snowfall, with both volume and number of snowfall days hitting the low of 0" (0mm) and 0 days, respectively. Weather in May »Weather in June
As summer sets in, Bremerton in June enjoys milder weather, with temperatures climbing up — not too hot, not too cold. The city indulges in more daylight and sunshine, but somehow humidity takes a step back. Among the summer months, June observes the maximum visibility of six miles, favoring outdoor pursuits. Weather in June »Weather in July
The stage of mid-summer, July in Bremerton, is a period of delightful weather conditions. July stands out by boasting the warmest temperature throughout the year, reaching a zenith of 77°F (25°C). It is the peak summer month, characterized by longer and brighter days, contributing to the highest UV index. Weather in July »Weather in August
Following July, August in Bremerton continues the warm trail with slightly less scorching summer weather. Rewarded with more rain-free days, August comes second in terms of the lowest number of rainy days. Popular as a month of outdoor activities, it pairs comfortably warm weather with adequate sunshine. Weather in August »Weather in September
September ushers in mild autumnal charm in Bremerton, with gradually decreasing temperatures and shortening daylight hours. Rainfall accelerates during September, hitting a notable uptick of 0.59" (15mm) from the previous month. Weather in September »Weather in October
October sees Bremerton fully enveloped in the spirit of autumn. This month's weather comes with cooler temperatures, and it returns to ten or more rainy days. A blend of chill winds and colorful autumn leaves painting the cityscape greets locals and visitors. Weather in October »Weather in November
The beginning of winter, November in Bremerton, comes with increased precipitation, culminating in the highest rainfall amount of 1.5" (38mm). The temperature scales down considerably, providing the first glimpses of the forthcoming frosty winter. Weather in November »Weather in December
The height of winter in Bremerton arrives with December as colder temperatures prevail. Temperature lows drop to 34.9°F (1.6°C) making it the second coldest month in the year. The grand conclusion of the year sees increased coverage of cloudiness, creating a picturesque winter panorama. Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The wettest months are January and December, with an average 2.05" (52mm) of rainfall.
Throughout the year, there are 138.9 rainfall days, and 12.24" (311mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
Throughout the year, in Bremerton, Washington, there are 7 snowfall days, and 2.36" (60mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bremerton, Washington.
The month with the most snowfall in Bremerton, Washington, is February, when snow falls for 2.8 days and typically aggregates up to 1.22" (31mm) of snow.
The month with the coldest seawater is February, with an average ocean temperature of 45.3°F (7.4°C).
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Bremerton, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
April through October are months without snowfall.
With an average of 15h and 54min of daylight, June has the longest days of the year in Bremerton, Washington.
July is the least humid month, with an average relative humidity of 69%.
The month with the least rainfall in Bremerton is July, when the rain falls for 6.2 days and typically collects 0.28" (7mm) of precipitation.
With an average maximum UV index of 6, July is the month with the highest UV index.
August, having an average high-temperature of 77.2°F (25.1°C) and an average low-temperature of 53.6°F (12°C), is the warmest month.
August and September, with an average ocean temperature of 53.2°F (11.8°C), are months with the warmest seawater in Bremerton.
The month with the most sunshine in Bremerton is August, with an average of 10.7h of sunshine.
Bremerton, Washington, notes the coldest temperatures in December, with a average high of 43.2°F (6.2°C) and a low of 34.9°F (1.6°C).
The most humid month is December, with an average relative humidity of 87%.
With an average of 8h and 30min of daylight, December has the shortest days of the year in Bremerton, Washington.
December has the least sunshine of the year in Bremerton, Washington, with an average of 4.1h of sunshine.
Average temperature
Bremerton, WA
The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure
Bremerton, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.05"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed
Bremerton, WA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4.1mph - Average wind speed in October:
4.5mph - Average wind speed in November:
5.1mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity
Bremerton, WA
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Bremerton, WA
- Average rainfall in January:
2.05" - Average rainfall in February:
1.14" - Average rainfall in March:
1.06" - Average rainfall in April:
0.79" - Average rainfall in May:
0.83" - Average rainfall in June:
0.51"
The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Bremerton, WA
- Average rainfall days in January:
13.4 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
6.2 days - Average rainfall days in August:
5.4 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
15 days - Average rainfall days in December:
14.3 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).
Average snowfall
Bremerton, WA
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Bremerton, WA
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Bremerton, WA
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight / Average sunshine
Bremerton, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 12min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 36min - Average sunshine in November:
4h and 30min - Average sunshine in December:
4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Bremerton, WA
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
17.3 days
- Average sunshine days in July:
22.4 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
12.7 days - Average sunshine days in December:
13.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index
Bremerton, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Bremerton, WA
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility
Bremerton, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
