Skip to content
Satellite view of Castell Nos Reservoir

Castell Nos Reservoir

Reservoir

Good conditions today

reservoir near Maerdy

Interactive map not available

Weather at Castell Nos Reservoir

H: 70° L: 49°
Sunny
Sunny
70°
|
Feels like 64°
Precipitation
3%
Humidity
29%
Wind
5 mph
UV Index
2.7
Water Conditions:
🏊Cool but swimmable
12 AM
Clear
52°
3 AM
Clear
50°
6 AM
Clear
49°
9 AM
Sunny
56°
12 PM
Sunny
65°
3 PM
Sunny
69°
6 PM
Sunny
68°
9 PM
Clear
58°

Sponsored gear checklist

Pack smarter for Castell Nos Reservoir

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

Where is Castell Nos Reservoir?
Castell Nos Reservoir is a reservoir in Wales.
Can you swim at Castell Nos Reservoir?
There is no fixed answer for Castell Nos Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Castell Nos Reservoir in Wales. Check current water conditions before you go, and follow posted signs and local guidance.

Visitor Reviews

Be the first to share your experience here

Join our community to share your water adventures

Earn badges as you share your experiences!

💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean

No reviews yet — share what you know

Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

👍
Right Now
Good conditions for visiting
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Wales

</> Embed this location on your site

Paste this snippet into your website to show a live badge for Castell Nos Reservoir — free to use with the included credit link.