Castaños in Spring
In spring (March, April and May), Castaños sees average daytime highs around 29°C and overnight lows near 16°C, with 101 mm of rain over about 22 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 24°C in early March to 32°C by late May. The sky is clear or mostly clear about 54% of the time across spring, and the air most often feels dry.
Spring is Castaños's 3rd-best season to visit on our travel score. For the whole year in context, see Castaños's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 101 mm
- 22 wet days
- Avg wind
- 8 km/h
- Travel score
- 6.2
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Castaños in Spring
Over the season highs climb from about 24°C in early March to 32°C by late May.
A typical spring day in Castaños reaches about 29°C and drops to 16°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Castaños
Once humidity and wind are folded in, spring brings about 10 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Castaños weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 7° | 17 | 3.6 | 10.5 | 7.2 |
| Feb | 22° / 9° | 12 | 3.1 | 11.1 | 8.0 |
| Mar | 25° / 13° | 24 | 4.3 | 11.8 | 8.0 |
| Apr | 29° / 16° | 27 | 5.8 | 12.6 | 6.2 |
| May | 32° / 20° | 49 | 11.6 | 13.3 | 4.3 |
| Jun | 33° / 22° | 56 | 10.2 | 13.7 | 3.8 |
| Jul | 32° / 22° | 81 | 10.2 | 13.5 | 4.0 |
| Aug | 32° / 22° | 64 | 9.2 | 12.9 | 4.3 |
| Sep | 28° / 19° | 121 | 13 | 12.2 | 5.6 |
| Oct | 26° / 15° | 39 | 6.7 | 11.4 | 7.6 |
| Nov | 22° / 11° | 21 | 3.9 | 10.7 | 8.0 |
| Dec | 19° / 7° | 19 | 3.4 | 10.3 | 7.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 54% of the time across spring.
Chance of precipitation in Spring
Castaños gets around 101 mm of rain over 22 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 8 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 24 min in early March to 13 h 30 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.6 kWh/m².
Hazard calendar for Castaños
None of Castaños's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Castaños's rainy season runs June–September, when most of the year's rain falls.
Is spring a good time to visit Castaños?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Castaños for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Castaños in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Castaños sees daytime highs around 29°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 22 days see rain.
UV index in Castaños in Spring
Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Castaños peaks around July 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 7 | 9 | 11 | 12 | 12 | 12 | 11 | 11 | 8 | 6 | 5 |
| Level | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Castaños in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Castaños is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 9 | 9 | 9 | 11 | 15 | 15 | 18 | 15 | 14 | 11 | 10 | 9 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 9 | Good |
| Mar | 9 | Good |
| Apr | 11 | Good |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Castaños?
Castaños sits at 26.8°N, 101.4°W, 756 m above sea level, in Mexico. The nearest listed city is Monclova, 13 km away.
Topography around Castaños
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castaños.
Within 3 km, the terrain around Castaños has only modest variations in elevation — a maximum elevation change of 240 m around an average of 777 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,344 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,316 m.
The land around Castaños is covered by shrubs (58%) and artificial surfaces (26%) within 3 km, shrubs (81%) within 16 km, and shrubs (88%) within 80 km.
Mexico travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 / 127 V · 60 Hz
- Prices
- ≈ 54% of US
- price level, 2025
- GDP per capita
- $13,889
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 43%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 12.8
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 440
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Castaños (26.7893°, -101.4321°, elevation 756 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.