# Lower Rio Grande Valley National Wildlife Refuge, Mexico: what it is and when to go

> Lower Rio Grande Valley National Wildlife Refuge is a protected area in Mexico. Interests: Nature and Wildlife. The best time to visit is November to April. In June there are 13 h 39 of daylight, and in December, 10 h 21. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/america/mexico/lower-rio-grande-valley-national-wildlife-refuge/
- Reviewed on: 2026-10-08
- Language: en

## In a nutshell

- **What it is:** Protected area · Nature, Wildlife
- **Where:** Mexico
- **Best time:** November to April.
- **Nearest airport:** MTY Monterrey, 129 km as the crow flies
- **Website:** [fws.gov](https://fws.gov/refuge/lower-rio-grande-valley)
- **Run by:** United States Fish and Wildlife Service
- **Coordinates:** 26.5297, -99.12788

## What it is and where

Lower Rio Grande Valley National Wildlife Refuge is a protected area in Mexico.

Its coordinates are 26.5297, -99.12788; the nearest main airport is Monterrey International Airport (MTY, Monterrey), 129 km as the crow flies. How to get around Mexico (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/mexico/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=26.5297%2C-99.127878)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=26.5297%2C-99.127878)

- **Run by:** United States Fish and Wildlife Service

It is one of the [Nature](https://kokai.app/en/paises/america/mexico/naturaleza/) and [Wildlife](https://kokai.app/en/paises/america/mexico/fauna/) places in Mexico. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Lower Rio Grande Valley National Wildlife Refuge is **November to April**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Best time | 10 h 30 |
| February | Best time | 11 h 06 |
| March | Best time | 11 h 49 |
| April | Best time | 12 h 38 |
| May | Possible | 13 h 18 |
| June | Possible | 13 h 39 |
| July | Possible | 13 h 31 |
| August | Possible | 12 h 56 |
| September | Better not | 12 h 09 |
| October | Possible | 11 h 21 |
| November | Best time | 10 h 40 |
| December | Best time | 10 h 21 |

In June there are 13 h 39 of daylight, and in December, 10 h 21. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Nature | November to April | May to August and October |
| Wildlife | November to April | May to August and October |

It is not the same trip whatever you come for: Lower Rio Grande Valley National Wildlife Refuge has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to Mexico in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/mexico/#cuando-ir).

## Before you go to Mexico

To enter Mexico there are 9 things to sort out before you leave, starting with “Valid passport and onward ticket”: they are all, with their deadlines, in [the Mexico checklist](https://kokai.app/en/paises/america/mexico/#antes-de-salir). Currency: Mexican peso (MXN); plugs: Type A and B · 127 V · 60 Hz (you need an adapter); emergencies: 911 for everything · 078 tourist assistance.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Roma–Ciudad Miguel Alemán International Bridge](https://kokai.app/en/paises/america/mexico/roma-san-pedro-international-bridge/): History · Architecture · 18 km
- [El Sabinal National Park](https://kokai.app/en/paises/america/mexico/parque-nacional-el-sabinal/): National park in Mexico · 70 km
- [National Butterfly Center](https://kokai.app/en/paises/america/mexico/national-butterfly-center/): Nature preserve near Mission, Texas, United States · 86 km
- [Anzalduas International Bridge](https://kokai.app/en/paises/america/mexico/puente-internacional-anzalduas/): Bridge in United States of America · 92 km
- [Deportivo Cimarron De Nuevo Laredo](https://kokai.app/en/paises/america/mexico/deportivo-cimarron-de-nuevo-laredo/): With kids · 104 km

Distances are as the crow flies. Everything else is in [the Mexico guide](https://kokai.app/en/paises/america/mexico/).

## More in Mexico: Nature

- [Chichen Itza](https://kokai.app/en/paises/america/mexico/chichen-itza/): pre-Columbian Maya city in Mexico
- [Popocatépetl](https://kokai.app/en/paises/america/mexico/popocatepetl/): North America volcano
- [Teotihuacan](https://kokai.app/en/paises/america/mexico/pre-hispanic-city-of-teotihuacan/): ancient Mesoamerican city
- [Pico de Orizaba](https://kokai.app/en/paises/america/mexico/pico-de-orizaba/): highest mountain and volcano in Mexico
- [Parícutin](https://kokai.app/en/paises/america/mexico/paricutin/): dormant scoria-cone volcano in Mexico
- [Iztaccihuatl](https://kokai.app/en/paises/america/mexico/iztaccihuatl/): volcano in Mexico

Every Mexico place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/america/mexico/naturaleza/).

## Frequently asked questions

### What is Lower Rio Grande Valley National Wildlife Refuge?

It is a protected area in Mexico.

### When is the best time to visit Lower Rio Grande Valley National Wildlife Refuge?

November to April. In June there are 13 h 39 of daylight, and in December, 10 h 21.

### How do you get to Lower Rio Grande Valley National Wildlife Refuge?

The nearest main airport is Monterrey International Airport (MTY), 129 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=26.5297%2C-99.127878) opens the route on the map, and how to get around Mexico is explained in [its country guide](https://kokai.app/en/paises/america/mexico/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the Mexico map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Roma–Ciudad Miguel Alemán International Bridge](https://kokai.app/en/paises/america/mexico/roma-san-pedro-international-bridge/), [El Sabinal National Park](https://kokai.app/en/paises/america/mexico/parque-nacional-el-sabinal/), [National Butterfly Center](https://kokai.app/en/paises/america/mexico/national-butterfly-center/). The rest is in [the Mexico guide](https://kokai.app/en/paises/america/mexico/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/1380863779), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).