<p>We have just experienced rain from an almost cloudless sky in Forster Australia at 1230pm
Almost no wind at 4 knots. 
Humidity very high
Lasted around 5 minutes with the rain drops increasing in size over the 5 minutes. 
Nick<img src="https://i.sstatic.net/BAOwP.jpg" alt="enter image description here"></p>

CC BY-SA 3.0
2018-01-01T08:51:23.353Z
There are clearly visible clouds here (not just the ones in the bottom left hand corner) so I'm not sure this really counts.
bon
CC BY-SA 3.0
2018-01-01T20:57:15.373Z
Hi Bon, I intentionally included the little cloud as pictured, its not a rain cloud nor was it responsible for the shower. I have since learnt through the Bureau of Meterology that the phenomenon is a SEREIN which is a French name for rain falling from a cloudless sky.
Nick Minutillo
CC BY-SA 4.0
2020-08-29T03:10:58.887Z
@bon - My observations of rain not falling from clouds were like this - the misty area is an aerial patch of water droplets (rain) held aloft by winds, that looks different to normal cloud. Technically still "cloud"? But different - the way that rain below clouds looks distinctly different to the clouds that it falls from. A difference would be apparent with the sun behind the observer - you would get rainbows from that rainy "mist" but not from the clouds at the bottom corner of the pic.
Ken Fabian
CC BY-SA 3.0
2018-01-01T01:56:16.043Z
2018-01-01T01:56:16.043Z
Nick Minutillo
<p><strong>Yes</strong>
 We have them all the time they are called <a href="https://en.wikipedia.org/wiki/Sunshower" rel="nofollow noreferrer">sun showers</a>
 Wind can push rain miles from the clouds that it falls from. </p>

CC BY-SA 3.0
2017-06-28T15:41:13.167Z
Always I've experienced sun showers, there were clouds. They were sun showers because there weren't clouds in the direction where the sun was, although there were clouds in the direction rain came from. As far as I can remember, I've always seen sun showers in the afternoon, when the sun low and clouds were high in the sky.
Pere
CC BY-SA 3.0
2017-11-24T04:21:47.010Z
That's all anecdotal, sun showers only require wind and rain, there need not be any visible clouds, although there will usually clouds nearby, and of course clouds can dissipate while the rain is still falling, since it can take quite a while for rain to reach the ground in windy conditions.
John
CC BY-SA 4.0
2020-08-29T03:02:54.463Z
Having recently experienced rain that was not falling from any clouds - on a very windy day - this agrees with my surmise that the wind separated and carried the rain away from the clouds where it formed (which may have dissipated). Scattered clouds were about but were entirely disconnected from the patches of watery "mist" - that look distinctly different to normal clouds, in the way that rain below clouds looks different to cloud. Technically, that may still be "cloud", but made of rain droplets. Different to "Serein"?
Ken Fabian
CC BY-SA 3.0
2017-05-08T01:57:38.493Z
2017-05-08T01:57:38.493Z
John
<p>This is absolutely possible, I was cycling my bike in a completely cloudless sky when I suddenly hit this wall of super humid and hot air. I had never experienced this kind of air before. As I passed into this wall of humid air, it started raining. I guess at 100% humidity, you only need a slight drop in temperature for the water to start falling out of the air.</p>

CC BY-SA 4.0
2018-07-29T12:06:54.997Z
2018-07-29T12:06:54.997Z
DrK
<p>It is possible for a cloud to rain itself out. But it then takes some time for the rain to fall to the ground. By the time the rain reaches the ground, the cloud is no longer there. This is rare, but it can happen.</p>

CC BY-SA 3.0
2017-06-28T03:00:50.893Z
2017-07-03T22:22:31.913Z
2017-07-03T22:22:31.913Z
Jack Denur
<p>I actually witnessed this in Ashland, OR several years ago. A strong winter storm had just passed when there was a sudden, brief downpour. When I looked up, there was not a cloud in the sky. What I believe happened is that the air was supersaturated with moisture when a brief breeze caused water to condensate around the few nuclei available. This seems to be confirmed by the second scenario in <a href="http://chicagoweathercenter.com/blog/ask_tom_why_raining_without_clouds_overhead" rel="noreferrer">this</a> explanation: <blockquote>Consider the very rare situation in which still air is supersaturated with moisture (its relative humidity is above 100 percent) and clouds have not formed because condensation nuclei are practically nonexistent. Water vapor will quickly condense onto the few nuclei that are present and the droplets will rapidly grow into raindrops.</blockquote><br>This is the one and only time I have ever experienced this.</p>

CC BY-SA 3.0
2016-06-19T20:24:21.573Z
@gansub, when I say "several years ago," I mean decades. This was in the late '70s (maybe early '80s). I doubt any weather maps are available for little 'ole Ashland from that day.
BillDOe
CC BY-SA 3.0
2017-06-28T15:52:13.683Z
@BillOertell https://www.lib.noaa.gov/collections/imgdocmaps/daily_weather_maps.html
BarocliniCplusplus
CC BY-SA 3.0
2017-06-30T07:27:16.143Z
@BarocliniCplusplus that's a good link.  I've long searched for old DIFAX and stuff.  Before the best option was just [Iowa State's MTArchive](http://mtarchive.geol.iastate.edu/).  But that helps much, thanks!
JeopardyTempest
CC BY-SA 3.0
2016-06-18T23:32:34.887Z
2016-06-18T23:32:34.887Z
BillDOe
<p>Is it possible to have rain without visible clouds?</p>

<p>As far as I know, clouds are liquid water and eventually the liquid water in them falls down, producing rain. Therefore one would expect clouds before rain.</p>

<p>But is it theoretically possible to have rain when there aren't any visible clouds? Maybe if the concentration of liquid water in the air isn't too high it is possible.</p>

<meteorology>
Rain without clouds?
Pedro
# Rain without clouds?

(Asked by: username_0 on 2016-06-18)

Is it possible to have rain without visible clouds?

As far as I know, clouds are liquid water and eventually the liquid water in them falls down, producing rain. Therefore one would expect clouds before rain.

But is it theoretically possible to have rain when there aren't any visible clouds? Maybe if the concentration of liquid water in the air isn't too high it is possible.

**Tags:** meteorology


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## 5 answers

### Answer by username_8 on 2016-06-18. Score: 4 | Accepted answer

I actually witnessed this in Ashland, OR several years ago. A strong winter storm had just passed when there was a sudden, brief downpour. When I looked up, there was not a cloud in the sky. What I believe happened is that the air was supersaturated with moisture when a brief breeze caused water to condensate around the few nuclei available. This seems to be confirmed by the second scenario in [this](http://chicagoweathercenter.com/blog/ask_tom_why_raining_without_clouds_overhead) explanation:

> Consider the very rare situation in which still air is supersaturated with moisture (its relative humidity is above 100 percent) and clouds have not formed because condensation nuclei are practically nonexistent. Water vapor will quickly condense onto the few nuclei that are present and the droplets will rapidly grow into raindrops.

  
This is the one and only time I have ever experienced this.

> **Comments:**
> **username_8**: @gansub, when I say "several years ago," I mean decades. This was in the late '70s (maybe early '80s). I doubt any weather maps are available for little 'ole Ashland from that day.  
> **username_9**: @BillOertell https://www.lib.noaa.gov/collections/imgdocmaps/daily_weather_maps.html  
> **username_10**: @username_9 that's a good link.  I've long searched for old DIFAX and stuff.  Before the best option was just [Iowa State's MTArchive](http://mtarchive.geol.iastate.edu/).  But that helps much, thanks!  

---

### Answer by username_1 on 2018-01-01. Score: 2

We have just experienced rain from an almost cloudless sky in Forster Australia at 1230pm
Almost no wind at 4 knots.
Humidity very high
Lasted around 5 minutes with the rain drops increasing in size over the 5 minutes.
username_1![enter image description here](https://i.sstatic.net/BAOwP.jpg)

> **Comments:**
> **username_2**: There are clearly visible clouds here (not just the ones in the bottom left hand corner) so I'm not sure this really counts.  
> **username_1**: Hi Bon, I intentionally included the little cloud as pictured, its not a rain cloud nor was it responsible for the shower. I have since learnt through the Bureau of Meterology that the phenomenon is a SEREIN which is a French name for rain falling from a cloudless sky.  
> **username_3**: @username_2 - My observations of rain not falling from clouds were like this - the misty area is an aerial patch of water droplets (rain) held aloft by winds, that looks different to normal cloud. Technically still "cloud"? But different - the way that rain below clouds looks distinctly different to the clouds that it falls from. A difference would be apparent with the sun behind the observer - you would get rainbows from that rainy "mist" but not from the clouds at the bottom corner of the pic.  

---

### Answer by username_4 on 2017-05-08. Score: 2

**Yes**
We have them all the time they are called [sun showers](https://en.wikipedia.org/wiki/Sunshower)
Wind can push rain miles from the clouds that it falls from.

> **Comments:**
> **username_5**: Always I've experienced sun showers, there were clouds. They were sun showers because there weren't clouds in the direction where the sun was, although there were clouds in the direction rain came from. As far as I can remember, I've always seen sun showers in the afternoon, when the sun low and clouds were high in the sky.  
> **username_4**: That's all anecdotal, sun showers only require wind and rain, there need not be any visible clouds, although there will usually clouds nearby, and of course clouds can dissipate while the rain is still falling, since it can take quite a while for rain to reach the ground in windy conditions.  
> **username_3**: Having recently experienced rain that was not falling from any clouds - on a very windy day - this agrees with my surmise that the wind separated and carried the rain away from the clouds where it formed (which may have dissipated). Scattered clouds were about but were entirely disconnected from the patches of watery "mist" - that look distinctly different to normal clouds, in the way that rain below clouds looks different to cloud. Technically, that may still be "cloud", but made of rain droplets. Different to "Serein"?  

---

### Answer by username_6 on 2018-07-29. Score: 0

This is absolutely possible, I was cycling my bike in a completely cloudless sky when I suddenly hit this wall of super humid and hot air. I had never experienced this kind of air before. As I passed into this wall of humid air, it started raining. I guess at 100% humidity, you only need a slight drop in temperature for the water to start falling out of the air.


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### Answer by username_7 on 2017-06-28. Score: 0

It is possible for a cloud to rain itself out. But it then takes some time for the rain to fall to the ground. By the time the rain reaches the ground, the cloud is no longer there. This is rare, but it can happen.


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