April 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 April

In April, Astoria undeniably steps into warmer weather, leaving the stubborn remnants of winter behind. The city witnesses a significant leap in temperatures, making a noticeable contrast to March. April's warmer temperatures range from 42.1°F (5.6°C) to 52.3°F (11.3°C). Further, April also represents a turning point in rainfall with a significant decrease, signaling a broader transformation in Astoria's weather conditions. Heading into May, residents prepare for the most dramatic improvement as Astoria leaps into the full vibrancy of spring.

Temperature

Shifting into April, Astoria records an average high-temperature of a fresh 52.3°F (11.3°C), presenting minor fluctuations compared to the previous month. Throughout the nights in April, an average low-temperature of 42.1°F (5.6°C) is noted in Astoria.

Humidity

In April, the average relative humidity in Astoria is 82%.

Rainfall

In April, the rain falls for 20 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. Throughout the year, in Astoria, there are 192.7 rainfall days, and 40.12" (1019mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Astoria.

Ocean temperature

In Astoria, the average seawater temperature in April is 49.6°F (9.8°C).
Note: It is risky to swim in 49.6°F (9.8°C). Temperatures beneath 50°F (10°C) induce rapid cold shock and hyperventilation.

Daylight

In Astoria, the average length of the day in April is 13h and 36min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:44 pm. On the last day of April, in Astoria, sunrise is at 6:01 am and sunset at 8:23 pm PDT.

Sunshine

In April, the average sunshine is 7.2h.

UV index

In Astoria, Oregon, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 3 during April translates into the following guidance:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What are April temperatures in Astoria?

During April, Astoria experiences an average high-temperature of 52.3°F (11.3°C) and a low-temperature of 42.1°F (5.6°C).

What is the average humidity in April in Astoria?

The average relative humidity in April in Astoria is 82%.

How many days does it rain in April in Astoria?

In Astoria, Oregon, in April, it is raining for 20 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Astoria?

April through November are months without snowfall.

Does it snow in Astoria in April?

In April, in Astoria, Oregon, it doesn't snow. March is the latest month when it typically snows.

What is the ocean temperature in April in Astoria?

In Astoria, Oregon, in April, the average water temperature is 49.6°F (9.8°C). Swimming in 49.6°F (9.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Astoria have in April?

In April, the average day length in Astoria is 13h and 36min.

When are sunrise and sunset in April in Astoria?

On the first day of April, sunrise is at 6:53 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:23 pm PDT.

How many hours of sunshine does Astoria have in April?

The average sunshine duration in April in Astoria is 7.2h.

What is the UV index intensity in April in Astoria?

The average daily maximum UV index in April in Astoria, Oregon, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAprilMJJASOND
Mar
April
May
Average high temperature
49.5°F 9.7°C
52.3°F 11.3°C
58.3°F 14.6°C
Average low temperature
40.1°F 4.5°C
42.1°F 5.6°C
45.7°F 7.6°C
Average pressure
30.02" 763mmHg
30.07" 764mmHg
30.05" 763mmHg
Average wind speed
8.5mph 13.7km/h
7.5mph 12.1km/h
6.5mph 10.5km/h
Average max. wind speed
8.9mph 14.3km/h
8.2mph 13.2km/h
7.3mph 11.7km/h
Average wind speed gusts
13.4mph 21.6km/h
11.6mph 18.7km/h
9.9mph 15.9km/h
Average humidity
84%
82%
81%
Average rainfall
4.17" 106mm
3.15" 80mm
1.97" 50mm
Average rainfall days
21
20
13.4
Average snowfall
0.24" 6mm
0" 0mm
0" 0mm
Average snowfall days
0.6
0
0
Average sea temperature
48.4°F 9.1°C
49.6°F 9.8°C
52.8°F 11.6°C
Average daylight
12h 0min
13h 4min
15h 0min
Average sunshine
5h 2min
7h 1min
8h 2min
Average sunshine days
8
8.2
15.1
Average UV index
3
3
3
Average cloud cover
59%
54%
49%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in April
Astoria, OR

Average temperature in April - Astoria, OR
  • Average high temperature in April: 52.3°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 April: 42.1°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 April
Astoria, OR

Average pressure in April - Astoria, OR
  • Average pressure in April: 30.07"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 April
Astoria, OR

Average wind speed in April - Astoria, OR
  • Average wind speed in April: 7.5mph

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 April
Astoria, OR

Average humidity in April - Astoria, OR
  • Average humidity in April: 82%

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 April
Astoria, OR

Average rainfall in April - Astoria, OR
  • Average rainfall in April: 3.15"

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 April
Astoria, OR

Average rainfall days in April - Astoria, OR
  • Average rainfall days in April: 20 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 April
Astoria, OR

Average snowfall in April - Astoria, OR
  • Average snowfall in April: 0"

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 April
Astoria, OR

Average snowfall days in April - Astoria, OR
  • Average snowfall days in April: 0 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 April
Astoria, OR

Average sea temperature in April - Astoria, OR
  • Average sea temperature in April: 49.6°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 April /
Average sunshine in April
Astoria, OR

Average daylight in April / Average sunshine in April - Astoria, OR
  • Average daylight in April: 13h and 4min

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 April: 7h and 1min

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 April
Astoria, OR

Average sunshine days in April - Astoria, OR
  • Average sunshine days in April: 8.2 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 April
Astoria, OR

Average UV index in April - Astoria, OR
  • Average UV index in April: 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 April
Astoria, OR

Average cloud cover in April - Astoria, OR
  • Average cloud cover in April: 54

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 April
Astoria, OR

Average visibility in April - Astoria, OR
  • Average visibility in April: 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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