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Olympia, Washington weather & best time to visit

City break

Olympia, Washington at a glance

Best time
Jun – Sep
Warmest month
Aug · 26°
Warmest sea
Aug · 11.8°
Sunshine a year
2,010 h
Rain a year
1,219 mm
Climate
Temperate
Time zone
UTC−8 / UTC−7
Elevation
29 m

Climate in Olympia, Washington

Olympia, Washington has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 26 °C, while December is the coolest at 8 °C. With around 2,010 hours of sunshine a year, Olympia, Washington is moderately sunny; July is the sunniest month with 9.9 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Olympia, Washington

The best time to visit Olympia, Washington is from June to September. The sea stays too cool for a classic beach holiday: even in August it only reaches 11.8 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. Rain is frequent from October to April; the wettest month is November with 198 mm.

Olympia, Washington through the seasons

How the weather changes over the seasons, with averages for each.

Olympia, Washington in spring

Mar – May

55

Fair

  • 13–19 °C by day
  • Sea 9 °C
  • 5.8 h of sun a day
  • 40 rainy days in all

Olympia, Washington in summer

Jun – Aug

97

Excellent

  • 22–26 °C by day
  • Sea 11 °C
  • 8.9 h of sun a day
  • 12 rainy days in all

Olympia, Washington in autumn

Sep – Nov

53

Fair

  • 11–23 °C by day
  • Sea 10 °C
  • 4.6 h of sun a day
  • 38 rainy days in all

Olympia, Washington in winter

Dec – Feb

8

Poor

  • 8–10 °C by day
  • Sea 8 °C
  • 2.7 h of sun a day
  • 49 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Sep

15–28 °C and not too much rain

Rainy months

Oct – Apr

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Olympia, Washington for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

56

Holiday weather in October

Fair

Best time to visit: June – September

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 6°
  2. Midday, 13:00: about 15°
  3. Afternoon, 16:00: about 16°
  4. Evening, 20:00: about 11°
  5. Night, 23:00: about 9°

07:2818:26

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:09–08:09 · evening 17:45–18:45
Blue hour
Morning 06:57–07:09 · evening 18:45–18:57

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Olympia, Washington compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 19° at the start of the month to 13° at the end. The sea cools from 11° to 10°. The days get 1.6 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high19°13°
Night-time low7°4°
Sea11°10°
Daylight11.8 h10.2 h

What is the weather like in Olympia, Washington in October?

In October, Olympia, Washington is mild: daytime highs average 16 °C, and nights cool down to about 5 °C. The sea averages 10.2 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 121 mm in total. All in all, October is a so-so month for a holiday in Olympia, Washington.

More details for October

Daylight
10 h 59 min07:28 – 18:26
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
14 km/haverage daily peakAll months
Cloud cover
67 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC−7offset from UTC

How the score comes together

  • Temperatureweight 50 %81 %
  • Sunshineweight 20 %22 %
  • Few rainy daysweight 30 %36 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Olympia, Washington

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Olympia, Washington: score 100 against 56. In July, days are 10 °C warmer than in October. The sea is 1 °C warmer in July. July has 11 fewer rainy days. The sun shines 6 hours longer a day in July.

October vs July, Olympia, Washington
MonthOctoberJuly
Holiday weather score56100better
Daytime high16°26°
Night-time low5°11°
Sea10.2°11.4°
Sunshine4.3 h9.9 hbetter
Rainy days132better
Rainfall121 mm12 mmbetter

Based on the climate averages 1996–2025.

Olympia, Washington month by month

The typical weather for every month at a glance.

2January8° · Sea 8° · 2.5 h

In January, Olympia, Washington is cold: daytime highs average 8 °C, and nights cool down to about 1 °C. The sea averages 8.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2.5 hours a day. It rains often – on about 18 days, adding up to 179 mm. All in all, January is not an ideal month for a holiday in Olympia, Washington.

Olympia, Washington in January
20February10° · Sea 8° · 3.5 h

In February, Olympia, Washington is cold: daytime highs average 10 °C, and nights cool down to about 1 °C. The sea averages 8.0 °C – swimming is only for the hardy. The sun is scarce, with only about 3.5 hours a day. It rains often – on about 14 days, adding up to 122 mm. All in all, February is not an ideal month for a holiday in Olympia, Washington.

Olympia, Washington in February
29March13° · Sea 8° · 4.3 h

In March, Olympia, Washington is cool: daytime highs average 13 °C, and nights cool down to about 2 °C. The sea averages 8.2 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. It rains often – on about 17 days, adding up to 138 mm. All in all, March is not an ideal month for a holiday in Olympia, Washington.

Olympia, Washington in March
56April15° · Sea 9° · 6.0 h

In April, Olympia, Washington is cool: daytime highs average 15 °C, and nights cool down to about 3 °C. The sea averages 8.9 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 89 mm in total. All in all, April is a so-so month for a holiday in Olympia, Washington.

Olympia, Washington in April
81May19° · Sea 10° · 7.0 h

In May, Olympia, Washington is mild: daytime highs average 19 °C, and nights cool down to about 7 °C. The sea averages 9.8 °C – swimming is only for the hardy. The sun shines for around 7.0 hours a day. Rain is frequent, with about 10 rainy days and 60 mm in total. All in all, May is an excellent month for a holiday in Olympia, Washington.

Olympia, Washington in May
92June22° · Sea 11° · 7.9 h

In June, Olympia, Washington is warm: daytime highs average 22 °C, and nights cool down to about 9 °C. The sea averages 10.7 °C – swimming is only for the hardy. The sun shines for around 7.9 hours a day. Rain falls on about 6 days, adding up to 35 mm. All in all, June is an excellent month for a holiday in Olympia, Washington.

Olympia, Washington in June
100July26° · Sea 11° · 9.9 h

In July, Olympia, Washington is warm: daytime highs average 26 °C, and nights cool down to about 11 °C. The sea averages 11.4 °C – swimming is only for the hardy. With around 9.9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 12 mm in total. On about 5 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Olympia, Washington.

Olympia, Washington in July
100August26° · Sea 12° · 8.9 h

In August, Olympia, Washington is warm: daytime highs average 26 °C, and nights cool down to about 11 °C. The sea averages 11.8 °C – swimming is only for the hardy. The sun shines for around 8.9 hours a day. Rain is rare: about 3 days bring 20 mm in total. On about 5 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Olympia, Washington.

Olympia, Washington in August
86September23° · Sea 11° · 6.9 h

In September, Olympia, Washington is warm: daytime highs average 23 °C, and nights cool down to about 8 °C. The sea averages 11.3 °C – swimming is only for the hardy. The sun shines for around 6.9 hours a day. Rain falls on about 8 days, adding up to 50 mm. All in all, September is an excellent month for a holiday in Olympia, Washington.

Olympia, Washington in September
56October16° · Sea 10° · 4.3 h

In October, Olympia, Washington is mild: daytime highs average 16 °C, and nights cool down to about 5 °C. The sea averages 10.2 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 121 mm in total. All in all, October is a so-so month for a holiday in Olympia, Washington.

Olympia, Washington in October
16November11° · Sea 9° · 2.7 h

In November, Olympia, Washington is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sea averages 9.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2.7 hours a day. It rains often – on about 17 days, adding up to 198 mm. All in all, November is not an ideal month for a holiday in Olympia, Washington.

Olympia, Washington in November
1December8° · Sea 9° · 2.0 h

In December, Olympia, Washington is cold: daytime highs average 8 °C, and nights cool down to about 1 °C. The sea averages 8.6 °C – swimming is only for the hardy. The sun is scarce, with only about 2.0 hours a day. It rains often – on about 17 days, adding up to 195 mm. All in all, December is not an ideal month for a holiday in Olympia, Washington.

Olympia, Washington in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Olympia, Washington

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°

ColdOctober: nights around 5°. The room should be heated.

The coolest nights are in February (1°), the warmest in July (11°). Nights fall below 8 °C on average from October to May, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 16°Night 5°Sea 10°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan28°1°8.1°2.5 h18179
FebruaryFeb2010°1°8.0°3.5 h14122
MarchMar2913°2°8.2°4.3 h17138
AprilApr5615°3°8.9°6.0 h1389
MayMay8119°7°9.8°7.0 h1060
JuneJun9222°9°10.7°7.9 h635
JulyJul10026°11°11.4°9.9 h212
AugustAug10026°11°11.8°8.9 h320
SeptemberSep8623°8°11.3°6.9 h850
OctoberOct5616°5°10.2°4.3 h13121
NovemberNov1611°3°9.4°2.7 h17198
DecemberDec18°1°8.6°2.0 h17195

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

47.04° N, 122.90° W · 29 m · America/Los_Angeles

Swimming calendar

Sea temperature in Olympia, Washington

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October10.2°Ccold

8 in 10 years: 9.8 – 10.7 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 10.2°8 in 10 years 9.8° – 10.7°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Olympia, Washington ranges from 8.0 °C in February to 11.8 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

In December the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 10.8 and 13.0 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan8.1°7.6°8.7°cold
FebruaryFeb8.0°7.4°8.8°cold
MarchMar8.2°7.6°8.8°cold
AprilApr8.9°8.3°9.5°cold
MayMay9.8°9.2°10.5°cold
JuneJun10.7°9.9°11.5°cold
JulyJul11.4°10.4°12.4°cold
AugustAug11.8°10.8°13.0°cold
SeptemberSep11.3°10.7°11.7°cold
OctoberOct10.2°9.8°10.7°cold
NovemberNov9.4°9.0°10.1°cold
DecemberDec8.6°8.1°9.2°cold
Sunshine

Sunshine hours in Olympia, Washington

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,010 hours
Sunniest month
Jul · 9.9 h a day
Least sunshine
Dec · 2.0 h a day
OctoberSunshine 4.3 hDaylight 11.0 hShare of daylight 39 %
SunshineDaylight

In October, the sun shines for about 4.3 of 11.0 hours of daylight in Olympia, Washington, 39 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Olympia, Washington: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,219 mm on 139 days
Wettest month
Nov · 198 mm
Driest month
Jul · 12 mm
OctoberRainy days 13Rainfall 121 mm

In October, Olympia, Washington has about 13 rainy days with 121 mm of rain in total.

Sun protection

UV index in Olympia, Washington

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 8).

Minutes until sunburn in October

Very fair skin
about 50 min
Fair skin
about 65 min
Light brown skin
about 90 min
Olive skin
about 115 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Olympia, Washington

How breezy and how cloudy Olympia, Washington is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
14 km/h · gentle breeze
Windiest month
Dec · 16 km/h
Calmest month
Jul · 12 km/h
OctoberWind 14 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Olympia, Washington typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
66 % · mostly cloudy
Clearest month
Jul · 43 %
Cloudiest month
Dec · 81 %
OctoberCloud cover 67 %Sunshine 4.3 h

In October, cloud covers on average 67 % of the sky over Olympia, Washington: mostly cloudy, with about 4.3 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Olympia, Washington

How often the day gets hot in Olympia, Washington (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
14 days
Hottest month
Aug · 26 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 16 °C

In October, Olympia, Washington has about 0 hot days, with an average daytime high of 16 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Olympia, Washington

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Olympia, Washington in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Olympia, Washington has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 2).

  • Easter holidays

    Mar – Apr

    48

    Fair

    • 14 °C by day
    • Sea 9 °C
    • 5.5 h of sun a day
    • 14 rainy days a month

    Keep in mind: Frequent rain

  • May half-term

    May – Jun

    83

    Excellent

    • 20 °C by day
    • Sea 10 °C
    • 7.2 h of sun a day
    • 9 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    100

    ExcellentBest holidays

    • 26 °C by day
    • Sea 12 °C
    • 9.3 h of sun a day
    • 3 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    56

    Fair

    • 16 °C by day
    • Sea 10 °C
    • 4.3 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    2

    Poor

    • 8 °C by day
    • Sea 8 °C
    • 2.3 h of sun a day
    • 17 rainy days a month

    Keep in mind: Frequent rain

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 9 h 50 min
Distance
7,760 km
Time zone
UTC−7
Jet lag
About 5 days (8 h west)

Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Olympia, Washington compared

Put Olympia, Washington side by side with another destination.

Nearby:
Compare with home:

Olympia vs Tacoma

In October the holiday weather in Olympia and Tacoma is about equally good (score 56 vs 57). During the day it is about as warm in Tacoma as in Olympia. The sea is about equally warm.

Olympia vs Tacoma, in October
in OctoberOlympiaTacoma
Holiday weather score5657
Daytime high16°16°
Sea10°10°
Sunshine4 h4 h
Rainy days1313
Best timeJun – SepJun – Sep

Through the year

OctoberOlympia 16°Tacoma 16°
OlympiaTacoma
Go to Tacoma
Ranking

USA in October: the best places

In October, Olympia, Washington ranks 26 among the 31 nearest destinations in this country.

  1. Mariposa (Yosemite)24°98
  2. 2Sacramento26°96
  3. 3San Jose24°96
  4. 4Santa Cruz19°14°96
  5. 5Monterey21°15°96
  6. 6Carmel-by-the-Sea19°15°96
  7. 7Reno21°95
  8. 8Napa Valley25°95
  9. 26OlympiaThis page16°10°56
All destinations: USA

Near Olympia, Washington

Other destinations close by.

Places with a climate like Olympia, Washington

Destinations whose weather through the year is closest to Olympia, Washington's – good alternatives.

  1. 84 % similar50VictoriaCanada15°10°Best time: May – Sep
  2. 84 % similar50SaanichCanada15°10°Best time: May – Sep
  3. 82 % similar52SookeCanada15°10°Best time: May – Sep
  4. 81 % similar54SidneyCanada15°11°Best time: May – Sep

Frequently asked questions about Olympia, Washington

When is the best time to visit Olympia, Washington?

The best time to visit Olympia, Washington is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Olympia, Washington?

The sea temperature in Olympia, Washington ranges from 8.0 °C in February to 11.8 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Olympia, Washington in October?

Only if you don't mind cold water: in October the sea averages just 10.2 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Olympia, Washington?

August is the warmest month, with average highs of 26 °C and nights around 11 °C. December is the coolest month at 8 °C.

When does it rain most in Olympia, Washington?

Rain is frequent from October to April; the wettest month is November with 198 mm. The driest month is July with 12 mm.

How many hours of sunshine does Olympia, Washington get?

Olympia, Washington gets around 2,010 hours of sunshine a year. The sunniest month is July with 9.9 hours a day; in December there are 2.0 hours a day.

What time zone is Olympia, Washington in?

Olympia, Washington is on UTC−8 in January and UTC−7 in July.

How long is the flight from London to Olympia, Washington?

A nonstop flight from London to Olympia, Washington takes about 9 h 50 min, for a straight-line distance of about 7,760 km.

Which school holidays are best for Olympia, Washington?

Olympia, Washington has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 2). Holiday ratings (0–100): Easter holidays 48, May half-term 83, summer holidays 100, October half-term 56, Christmas holidays 2.