Weather in Bremerton, Washington
Shoots and Sprouts Rise in Ranks. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Light Rain74%54°42°
- SundayMay 17Overcast—60°41°
- MondayMay 18Overcast—66°46°
- TuesdayMay 19Light Drizzle—64°43°
- WednesdayMay 20Overcast—68°41°
- ThursdayMay 21Mostly Clear—78°43°
- FridayMay 22Overcast—71°46°
- PM 2.5
- 2.3 μg/m³
- PM 10
- 2.8 μg/m³
- NO₂
- 3.6 μg/m³
- Ozone
- 74.0 μg/m³
- UV Index
- 1.1 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 12:31 PM
- Moonset
- 4:30 AM
- In sign
- ♉︎ Taurus
Shoots and Sprouts Rise in Ranks
Bremerton at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: May 31 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Cool-season window is open
As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
August brings Bremerton's warmest temperatures at around 66°F mean, while December delivers the coldest at roughly 40°F. December also marks the wettest period with 9.9 inches of rainfall, contrasting sharply with July's dry 0.8 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 41° | 9.3″ | 14 |
| February | 42° | 5.8″ | 10 |
| March | 46° | 6.4″ | 12 |
| April | 50° | 3.9″ | 9 |
| May | 56° | 2.4″ | 6 |
| June | 61° | 1.6″ | 5 |
| July | 66° | 0.8″ | 2 |
| August | 66° | 1.1″ | 2 |
| September | 62° | 1.8″ | 5 |
| October | 53° | 5.1″ | 9 |
| November | 45° | 8.8″ | 13 |
| December | 40° | 9.9″ | 14 |
Regional context
Bremerton falls within the warm-summer Mediterranean climate region, sharing temperature ranges, seasonal patterns, and growing conditions with other nearby cities in this climate zone.
Similar climates: Seattle, WA, Spokane, WA, Kennewick, WA, Tacoma, WA, Olympia, WA.
Naturalist notes
Pacific rhododendrons reach peak bloom in late May, their large pink clusters marking the transition from spring to early summer.
American robins begin their second nesting cycle around mid-May as daylight extends past 15 hours.
Frequently asked
- When does it freeze in Bremerton?
- Spring's final frost typically occurs around mid-May in Bremerton, with the first fall frost returning around mid-October.
- What is the rainy season in Bremerton?
- December stands as the wettest month, delivering approximately 9.9 inches of rain on average, while the city's annual total reaches roughly 57 inches.
- What is the warmest month in Bremerton?
- August typically records the warmest temperatures, averaging about 66°F.
- What is the coldest month in Bremerton?
- December usually brings the coldest weather, averaging about 40°F.
- When can I start a vegetable garden in Bremerton?
- Plant cool-season crops like peas and lettuce around the last spring frost in mid-May, but wait 1–2 weeks after for warm-season varieties such as tomatoes and peppers.
- How many rainy days does Bremerton get?
- Bremerton experiences about 102 rainy days per year on average.
- What hardiness zone is Bremerton?
- Check the USDA's online lookup tool using Bremerton's ZIP code to find the current hardiness zone designation, which reflects the area's lowest average winter temperatures.
Climate
Bremerton, Washington experiences a warm-summer Mediterranean climate. January temperatures hover near 41°F, while July averages 66°F — creating a 24°F seasonal swing.
Annual precipitation totals about 57 inches, distributed across roughly 102 rainy days throughout the year.
Geography shapes Bremerton's climate through its latitude at 47.5°N, proximity to large water bodies, and elevation. These factors determine what grows in the area, frost timing, and daily weather patterns.