what's Coz water temp right now?

[Cozdreamer]

I have a fellow diver wanting to know what the current water temp is. Anyone just returning or there now that can tell me what your dive computer says the water temp is? Thanks for your help so I can pass the info to her quickly. she's heading down this weekend.

[Christi]

I have a fellow diver wanting to know what the current water temp is. Anyone just returning or there now that can tell me what your dive computer says the water temp is? Thanks for your help so I can pass the info to her quickly. she's heading down this weekend.

The same as it is year round...between 80 and 84 - occasionally dropping to 78 in the winter time

and from the FAQ Sticky at the top of the Cozumel page:

Q: What is the water temp in Cozumel?

The YEAR ROUND water temperature in Cozumel is consistently in the 78 - 84 range.

December - Feb: 78 - 80 +/-
March - May: 80 - 82 +/-
May - September: 82 - 84 +/- (occasionally can get in the 85/86 range...all computer variable anyway)
October - November: 80 – 82

[Cozdreamer]

thanks Christi for the round-about #'s. She was wondering if she'd need shorty or leave it at home this trip to save space. I'll pass these numbers on to her.
If anyone else replies, I'll send that info on to her too.
Thanks for your help quickly.

[christygobar]

I wore a dive skin only this past weekend and was super comfortable with the water temps.

[merganser1]

79 degrees F on all the dives.

Morris

[PlayaCountryBoy]

Dove there yesterday and my computer read 80F.:eyebrow:

[Christi]

79 degrees F on all the dives.

Morris

You are kidding right? It's been reading 83 to 84 consistently on my computer as well as all of my DM's computers (they are required to report water temp on their daily report)

[PlayaCountryBoy]

I will say this...I dive here year around, and I love the summer time here because I aside the wetsuit and go "au natural". Well sort of...I wear just my bathing suit (board shorts) thats' it! That's all you need really. For more petite people, you may consider using a shortie. But generally right now and for the weeks to come, a full wetsuit for a visitor is just not needed. ;) That's warm water divin' ! :D

[bvmjethead]

I dove in Playa last January and only wore a 3 mil shorty. I was fine.

[Jackie]

I dived in August and wore a hood. Had a hoot with the DM's who kidded me to no end. I kept saying "I can't heeear youuuu".
Kept my hair undercontrol and from getting torn up !
Even if I didn't wear a 3mm I would wear a dive skin. I could upload some fun one's of me in my dive godess prints...They make it easy to get in and out of a wetsuit, too.

[tomcat114]

Possibly a silly question but is there a thermocline?? I am guessing not because nobody ever mentions it.

Cant wait for my trip less then 4 months now 8).

[Dave Dillehay]

Dear Marc,

I dove three times last week...had to because we were busy and in doing so I noticed a very odd thing for Cozumel.

Normal August water temp is 84-86 F and I had NEVER seen a thermocline in Cozumel. Of course there are always fresh water springs which at certain locations pour out into the ocean and I have seen them even well below 100 ft. Of course that is cooler water which can immdiately be felt, and the associated halocline (salt/fresh water mixing) makes the water look greasy. That is pretty normal.

But this last week I ran into many places around 80-100 feet, I felt cold water that was not associated with fresh water springs. My dive watch is slow to respond to temp changes but my guess is that the temp in these areas was about 78-80. That may not sound like much but since I dive with no wet suit in summer it was easlily noticed.

The temp changes were not a solidly level thermocline like I have seen in other locales but nevertheless they were real. In my 15 years in Cozumel I had not seen such cold water, or a layer/thermocline. Back in my crazier younger days I even carefully measured the water temp all the way down to 250 and saw absolutely no temperature change.

My uneducated guess is that when Hurricane Dean passed us by it has caused some upwelling from extreme depths. Maybe someone else may have a better guess.

Dave Dillehay
Aldora Divers

[PlayaCountryBoy]

Maybe it's just from the change of seasons. I believe when seasons change, it brings about these "flashes" of cold water that comes up from the abyss affected by time of year and other other factors. Here the coldest time of the year is 78 F and the warmest at around 85 F. These thermoclines is just a way to lower the water's summer temp to the wintertime temp.

[halocline]

79-80 seems unseasonably cool for water temps this time of year. I'd be kind of surprised that actual temps are not higher, but maybe, as Dave says, the hurricane brought in some cooler water.

[Cozdreamer]

Thank you for all these replies! Great info.

[Christi]

I was surprised to see such variances in the water temps this past week or two, so I double checked my computer from Saturday's dives. My computer read 82 on Palancar Gardens and 84 at Paradise. I do remember a couple of cold patches, but in this case, they were as Dave describes, the fresh water springs...they weren't solid and consistent enough to change the reading on my computer. Yesterday's and Wednesdays reports from my DM's were 83 to 84 respectively, with max depths of 100ft.

[tomcat114]

Ahh cool guys thanks for the replys I guess I really have nothing to worry about, up here in MN and WI at the surface we are around 74 to 78 and down 25 feet or so drops down into the 40's hehe It actually will be a strange feeling not hitting any noticeable thermocline

[berick]

Just got back today from a week in Coz. Computers consistently said 85 and 86, but, my computer is consistently a degree or two warm.