March weather forecast
Astoria, OR

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A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia river
A scenic seaside shot of the city of Astoria in Oregon, with a view of the iconic Astoria Megler bridge crossing over the Columbia river

Weather in March

March marks an often-overlooked turning point in Astoria’s calendar year, with this month serving as the city's gateway to spring. Compared to February, there is a slight increase in overall precipitation leading to more rainy days. March sees temperatures oscillating from 40.1°F (4.5°C) to 49.5°F (9.7°C), inching towards warmer days, specifically towards the end of the month. Interestingly, snowfall decreases dramatically to 0.24" (6mm) - an indication of the diminishing winter. Upon entering April, Astoria gets to appreciate a significant improvement in the weather as temperatures and sunlight hours rise.

Temperature

With the advent of March, Astoria's high-temperatures adjust to a still chilly 49.5°F (9.7°C), closely aligning with the preceding month. During the month of March, the temperature in Astoria generally drops to a low average of 40.1°F (4.5°C).

Humidity

The months with the highest humidity in Astoria, Oregon, are January through March, November and December, with an average relative humidity of 84%.

Rainfall

In March, in Astoria, the rain falls for 21 days. Throughout March, 4.17" (106mm) of precipitation is accumulated. Throughout the year, there are 192.7 rainfall days, and 40.12" (1019mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. March is the last month it regularly snows. During 0.6 snowfall days, in March, Astoria aggregates 0.24" (6mm) of snow. Throughout the year, there are 3.4 snowfall days, and 1.93" (49mm) of snow is accumulated.

Ocean temperature

In Astoria, in March, the average water temperature is 48.4°F (9.1°C).
Note: To swim in 48.4°F (9.1°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.

Daylight

In March, the average length of the day in Astoria, Oregon, is 11h and 58min.
On the first day of March, sunrise is at 6:52 am and sunset at 6:02 pm PST. On the last day of the month, sunrise is at 6:55 am and sunset at 7:43 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.

Sunshine

In March, the average sunshine in Astoria is 5.4h.

UV index

The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 3 in March leads to these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What is the usual temperature for Astoria in March?

In March, in Astoria, the average high-temperature is 49.5°F (9.7°C), and the average low-temperature is 40.1°F (4.5°C).

What is the most humid month in Astoria?

The months with the highest humidity in Astoria, Oregon, are January through March, November and December, with an average relative humidity of 84%.

What is the average humidity in March in Astoria?

In Astoria, the average relative humidity in March is 84%.

How much does it rain in Astoria in March?

In March, in Astoria, the rain falls for 21 days. Throughout March, 4.17" (106mm) of precipitation is accumulated.

What is the last month it snows in Astoria?

March is the last month it regularly snows in Astoria, Oregon. During 0.6 snowfall days, in March, Astoria aggregates 0.24" (6mm) of snow.

How cold is the water in March in Astoria?

In Astoria, Oregon, in March, the average water temperature is 48.4°F (9.1°C). Swimming in 48.4°F (9.1°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Astoria have in March?

The average day length in March in Astoria is 11h and 58min.

When are sunrise and sunset in March in Astoria?

In March, on the first day of the month, sunrise is at 6:52 am and sunset at 6:02 pm PST. On the last day of the month, in Astoria, Oregon, sunrise is at 6:55 am and sunset at 7:43 pm PDT.

When does Daylight Saving Time (DST) start in March in Astoria?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Astoria, and the time zone changes from PST to PDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Astoria?

In March, the average sunshine duration in Astoria, Oregon, is 5.4h.

How high is the UV index in March in Astoria?

In Astoria, Oregon, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMarchAMJJASOND
Feb
March
Apr
Average high temperature
46.8°F 8.2°C
49.5°F 9.7°C
52.3°F 11.3°C
Average low temperature
38.8°F 3.8°C
40.1°F 4.5°C
42.1°F 5.6°C
Average pressure
30.06" 764mmHg
30.02" 763mmHg
30.07" 764mmHg
Average wind speed
8.2mph 13.2km/h
8.5mph 13.7km/h
7.5mph 12.1km/h
Average max. wind speed
8.8mph 14.2km/h
8.9mph 14.3km/h
8.2mph 13.2km/h
Average wind speed gusts
13.4mph 21.6km/h
13.4mph 21.6km/h
11.6mph 18.7km/h
Average humidity
84%
84%
82%
Average rainfall
4.45" 113mm
4.17" 106mm
3.15" 80mm
Average rainfall days
19.1
21
20
Average snowfall
0.91" 23mm
0.24" 6mm
0" 0mm
Average snowfall days
1.4
0.6
0
Average sea temperature
47.7°F 8.7°C
48.4°F 9.1°C
49.6°F 9.8°C
Average daylight
10h 2min
12h 0min
13h 4min
Average sunshine
3h 5min
5h 2min
7h 1min
Average sunshine days
7.5
8
8.2
Average UV index
2
3
3
Average cloud cover
60%
59%
54%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in March
Astoria, OR

Average temperature in March - Astoria, OR
  • Average high temperature in March: 49.5°F

The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (45.1°F).

  • Average low temperature in March: 40.1°F

The month with the highest average low temperature is August (53.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).

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Average pressure in March
Astoria, OR

Average pressure in March - Astoria, OR
  • Average pressure in March: 30.02"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).

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Average wind speed in March
Astoria, OR

Average wind speed in March - Astoria, OR
  • Average wind speed in March: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in March
Astoria, OR

Average humidity in March - Astoria, OR
  • Average humidity in March: 84%

The months with the highest relative humidity are January, February, March, November and December (84%).
The month with the lowest relative humidity is May (81%).

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Average rainfall in March
Astoria, OR

Average rainfall in March - Astoria, OR
  • Average rainfall in March: 4.17"

The wettest month (with the highest rainfall) is December (6.42").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in March
Astoria, OR

Average rainfall days in March - Astoria, OR
  • Average rainfall days in March: 21 days

The month with the highest number of rainy days is December (21.2 days).
The month with the least rainy days is August (7.2 days).

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Average snowfall in March
Astoria, OR

Average snowfall in March - Astoria, OR
  • Average snowfall in March: 0.24"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in March
Astoria, OR

Average snowfall days in March - Astoria, OR
  • Average snowfall days in March: 0.6 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in March
Astoria, OR

Average sea temperature in March - Astoria, OR
  • Average sea temperature in March: 48.4°F

The best month for swimming (with the highest average sea temperature) is July (56.9°F).
The coldest month (with the lowest average sea temperature) is February (47.7°F).

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Average daylight in March /
Average sunshine in March
Astoria, OR

Average daylight in March / Average sunshine in March - Astoria, OR
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in March: 5h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).

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Average sunshine days in March
Astoria, OR

Average sunshine days in March - Astoria, OR
  • Average sunshine days in March: 8 days

The month with the most sunshine days is August (20.1 days).
The month with the least sunshine days is February (7.5 days).

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Average UV index in March
Astoria, OR

Average UV index in March - Astoria, OR
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in March
Astoria, OR

Average cloud cover in March - Astoria, OR
  • Average cloud cover in March: 59

The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in March
Astoria, OR

Average visibility in March - Astoria, OR
  • Average visibility in March: 6mi

The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).

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Astoria, Oregon, USA

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