The best times to visit Arch Cape for ideal weather are
June 11th to September 30th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Arch Cape Travel Guide
Other Arch Cape Travel Info
Weather in Arch Cape
Temperature
Average temperatures in Arch Cape vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 27th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Arch Cape, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 72.5°F (22.5°C) with temperatures rarely dropping below 53.7°F (12.1°C) at night.
Arch Cape Temperatures (Fahrenheit)
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Arch Cape Temperatures (Celsius)
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“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Arch Cape Perceived Temperature (F)
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Arch Cape Perceived Temperature (C)
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Average Arch Cape Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 50.6 | 42.9 | 35.8 |
| Feb | 52.1 | 44.2 | 36.9 |
| Mar | 54.3 | 45.9 | 38.3 |
| Apr | 57 | 47.9 | 39.7 |
| May | 62 | 52.7 | 44.6 |
| Jun | 65.2 | 56.8 | 49.5 |
| Jul | 68.9 | 60.2 | 53.1 |
| Aug | 70.5 | 60.8 | 53.4 |
| Sep | 69.8 | 59.1 | 50.1 |
| Oct | 63.1 | 53.6 | 44.9 |
| Nov | 55.2 | 47.1 | 39.4 |
| Dec | 49.5 | 42.5 | 36.2 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 10.3 | 6.1 | 2.1 |
| Feb | 11.2 | 6.8 | 2.7 |
| Mar | 12.4 | 7.7 | 3.5 |
| Apr | 13.9 | 8.8 | 4.3 |
| May | 16.7 | 11.5 | 7 |
| Jun | 18.4 | 13.8 | 9.7 |
| Jul | 20.5 | 15.7 | 11.7 |
| Aug | 21.4 | 16 | 11.9 |
| Sep | 21 | 15.1 | 10.1 |
| Oct | 17.3 | 12 | 7.2 |
| Nov | 12.9 | 8.4 | 4.1 |
| Dec | 9.7 | 5.8 | 2.3 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Arch Cape are July, August, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early August. For example, on the week of July 30th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid March with an average of 5 days of significant precipitation the week of March 12th.
When can you find snow in Arch Cape? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Arch Cape.
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Snow on the Ground
The graph below shows the average snow on the ground in Arch Cape (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 50% | 0 | 9.7 |
| Feb | 51% | 0 | 6.6 |
| Mar | 58% | 0 | 9.1 |
| Apr | 44% | 0 | 6.1 |
| May | 29% | 0 | 4.1 |
| Jun | 23% | 0 | 2.4 |
| Jul | 6% | 0 | 0.9 |
| Aug | 9% | 0 | 1 |
| Sep | 21% | 0 | 3.6 |
| Oct | 36% | 0 | 6.7 |
| Nov | 51% | 0 | 10.7 |
| Dec | 57% | 0 | 10.8 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 50 | 0 | 24.6 |
| Feb | 51 | 0 | 16.8 |
| Mar | 58 | 0 | 23.1 |
| Apr | 44 | 0 | 15.5 |
| May | 29 | 0 | 10.4 |
| Jun | 23 | 0 | 6.1 |
| Jul | 6 | 0 | 2.3 |
| Aug | 9 | 0 | 2.5 |
| Sep | 21 | 0 | 9.1 |
| Oct | 36 | 0 | 17 |
| Nov | 51 | 0 | 27.2 |
| Dec | 57 | 0 | 27.4 |
Humidity and Wind
Arch Cape has some very humid months, and high humidity throughout the year. The least humid month is April (72% relative humidity), and the most humid month is January (77.5%).
Wind in Arch Cape is usually calm. The windiest month is March, followed by December and July. March’s average wind speed of around 7 knots (8 MPH or 12.9 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid November where average top sustained speeds reach 16.7 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Arch Cape.
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Wind
The graph below shows wind speed (max and average) in knots.
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Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 6.1 | Light breeze | 13.5 | Significant breeze |
| Feb | 6.2 | Light breeze | 13.9 | Significant breeze |
| Mar | 7 | Gentle breeze | 15.7 | Significant breeze |
| Apr | 6.6 | Light breeze | 14.7 | Significant breeze |
| May | 6.3 | Light breeze | 14 | Significant breeze |
| Jun | 6.4 | Light breeze | 13.7 | Significant breeze |
| Jul | 6.7 | Light breeze | 13.8 | Significant breeze |
| Aug | 5.8 | Light breeze | 13 | Significant breeze |
| Sep | 5.5 | Light breeze | 12.8 | Significant breeze |
| Oct | 5.6 | Light breeze | 13.1 | Significant breeze |
| Nov | 6.6 | Light breeze | 14.6 | Significant breeze |
| Dec | 6.9 | Light breeze | 14.6 | Significant breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 77.5% |
| Feb | 76.2% |
| Mar | 75.1% |
| Apr | 72% |
| May | 72.2% |
| Jun | 73% |
| Jul | 74.3% |
| Aug | 76.5% |
| Sep | 74.8% |
| Oct | 77% |
| Nov | 77.4% |
| Dec | 77% |
Is it Safe to Travel to Arch Cape?
Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Arch Cape, OR, US is August, followed by July and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Arch Cape in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Arch Cape Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 64.5°F (18.1°C) and 52.4°F (11.3°C) with warmer temperatures in the later months. Rain is frequent with 9 to 18 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 2 to 7 days of precipitation per month. June – August is the busiest season for tourism in Arch Cape, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 72.5°F (22.5°C) and 52.4°F (11.3°C), which will feel chilly given the humidity and wind. It rains or snows a good amount: 6 to 15 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Arch Cape to be enjoyable for warm weather travelers. The average high during this season is between 52.8°F (11.6°C) and 48.5°F (9.2°C). On average, it rains or snows a very great amount: 14 to 18 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› the United States › Arch Cape, OR, US