Water Information
WATER TEMPERATURE
For the end of the month of June, the expected water temperatures are:
| Maximum | Minimum | |
| River Lérez | 19ºC | 17ºC |
| Pontillón de Castro reservoir (Verducido) | 20º | 18ºC |
The official water temperature for each race will be taken 1 hour prior to the start of the first wave. This will determine whether wetsuits will be allowed as per the point 4.2 of the World Triathlon Competition Rules
Elite and U23 Athletes
| Swim Length | Forbidden | Mandatory |
| Up to 1500m | 20 ºC and above | 15.9 ºC and below |
| 1501m and longer | 22 ºC and above | 15.9 ºC and below |
Age-Group from the youngest to 55-59 category
| Swim Length | Forbidden | Mandatory |
| Up to 1500m | 22º C and above | 15.9º C and below |
| 1501m and longer | 24.6 ºC and above | 15.9 ºC and below |
Age-Group from 60-64 category to the oldest
| Swim Length | Forbidden | Mandatory |
| All distances | 24.6 ºC and above | 15.9 ºC and below |
SWIMSKIN
A competitor may wear a swim skin. Please note that the World Triathlon Rules definition of a swim skin: Must be 100% textile material, which is defined as materials consisting of natural and/or synthetic, individual and non-consolidated yarns used to constitute fabric by weaving, knitting and/or braiding (this generally refers to suits made only from nylon or lycra that do not have any rubberized material such as polyurethane or neoprene.
Swimskins must comply with the wetsuit section of the applicable Guidelines Regarding Authorised Identifications.
Swimskins MUST be removed after the swim segment.
If you have any questions about trisuits, swim skins or wetsuit rules, please see the World Triathlon Competition Rules or ask your NF Team Manager.
RIVER LÉREZ - TIDE INFORMATION
| Day | Hour | Type |
| Thursday 26 June | 05:27 | High Tide (3.1 m) |
| Thursday 26 June | 11:27 | Low Tide (0.6 m) |
| Thursday 26 June | 17:39 | High Tide (3.4 m) |
| Friday 27 June | 00:04 | Low Tide (0.3 m) |
| Friday 27 June | 06:14 | High Tide (3.0 m) |
| Friday 27 June | 12:12 | Low Tide (0.7 m) |
| Friday 27 June | 18:25 | High Tide (3.4 m) |
| Saturday 28 June | 00:49 | Low Tide (0.4 m) |
| Saturday 28 June | 06:59 | High Tide (3.0 m) |
| Saturday 28 June | 12:56 | Low Tide (0.7 m) |
| Saturday 28 June | 19:10 | High Tide (3.3 m) |
| Sunday 29 June | 01:35 | Low Tide (0.5 m) |
| Sunday 29 June | 07:44 | High Tide (2.9 m) |
| Sunday 20 June | 13:40 | Low Tide (0.8 m) |
RIVER LÉREZ - SWIMMING ACCESS
Outside of the days/times of the official swim fam and competitions, access to the river Lérez for swimming is not forbidden but it will be done under the responsibility of the athlete and without any safety arrangements from the organisation.
Access to the water from the competition pontoon of the bridge of Los Tirantes is forbidden. It will only be possible to access the water from the Playa Fluvial.
WATER QUALITY TESTS
In preparation for the 2025 World Triathlon Multisport Championships Pontevedra the water quality of the swim course is regularly monitored by the independent institute of hygiene and environment and has to be according to the official specifications of World Triathlon.
Tests carried out in three different points of the Leréz River:
| Lérez River (21/04/2025) | Value Range |
Location 1: 42º26’4.44’’N - 8º38’26.04’’O |
Location 2: 42º26’3.52’’N - 8º38’8.83’’O |
Location 3: 42º26’34.89’’N - 8º38’0.08’’O |
| pH | Between 6 and 9 | 6,7 | 6,55 | 6,47 |
| Entero-cocci | No more than 200 per 100 ml (cfu/100 ml) | 0 | 0 | 0 |
| Escherichia coli E. coli | No more than 500 per 100 ml (cfu/100 ml) | 300 | 100 | 300 |
and in Pontillón de Castro reservoir (Verducido).
| Verducido (21/04/2025) | Value Range |
Location 1: 42º29’46.18’’N - 8º36’57.67’’O |
Location 2: 42º29’54.50’’N - 8º36’57.40’’O | Location 3: 42º30’1.77’’N - 8º36’59.27’’O |
| pH | Between 6 and 9 | 5,84 | 5,71 | 5,6 |
| Entero-cocci | No more than 400 per 100 ml (cfu/100 ml) | 0 | 0 | 0 |
| Escherichia coli E. coli | No more than 1000 per 100 ml (cfu/100 ml) | 200 | 400 | 100 |
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