San Martín in Spring
In spring (March, April and May), San Martín sees average daytime highs around 29°C and overnight lows near 20°C, with 778 mm of rain over about 67 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 30°C in early March to 27°C by late May. The sky is clear or mostly clear about 3% of the time across spring, and the air most often feels muggy.
Spring is San Martín's weakest season of the year to visit on our travel score. For the whole year in context, see San Martín's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 778 mm
- 67 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.8
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in San Martín in Spring
Over the season highs ease from about 30°C in early March to 27°C by late May.
A typical spring day in San Martín reaches about 29°C and drops to 20°C overnight. The warmest of the three months is March, the coolest May.
San Martín 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 | 30° / 20° | 36 | 7.3 | 11.8 | 5.2 |
| Feb | 31° / 20° | 57 | 8.9 | 11.9 | 4.6 |
| Mar | 30° / 20° | 151 | 15.8 | 12 | 4.2 |
| Apr | 28° / 20° | 276 | 24.3 | 12.1 | 3.6 |
| May | 28° / 20° | 351 | 27.3 | 12.2 | 3.7 |
| Jun | 27° / 19° | 356 | 27.1 | 12.2 | 3.7 |
| Jul | 26° / 19° | 368 | 27.5 | 12.2 | 3.9 |
| Aug | 27° / 19° | 236 | 25 | 12.1 | 4.1 |
| Sep | 28° / 19° | 173 | 22.8 | 12 | 3.9 |
| Oct | 29° / 20° | 168 | 22.3 | 11.9 | 3.8 |
| Nov | 29° / 20° | 160 | 19.5 | 11.8 | 4.2 |
| Dec | 29° / 20° | 62 | 11.4 | 11.8 | 5.1 |
Cloud cover in Spring
The sky is clear or mostly clear about 3% of the time across spring.
Chance of precipitation in Spring
San Martín gets around 778 mm of rain over 67 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 4 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 54 min in early March to 12 h 12 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 4.9 kWh/m².
Hazard calendar for San Martín
In spring, San Martín overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
San Martín's rainy season runs April–October, when most of the year's rain falls.
Is spring a good time to visit San Martín?
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 weaker month for outdoor sightseeing in San Martín.
What to pack for San Martín in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, San Martín sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.
UV index in San Martín in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Martín peaks around February 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 11 (extreme).
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) | 13 | 14 | 13 | 11 | 12 | 13 | 12 | 11 | 13 | 13 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 11 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in San Martín 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 San Martín is worst in March — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 16 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) | 18 | 23 | 33 | 27 | 21 | 19 | 16 | 18 | 18 | 19 | 20 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 23 | Moderate |
| Mar | 33 | Moderate |
| Apr | 27 | Moderate |
| May | 21 | Moderate |
| Jun | 19 | Moderate |
| Jul | 16 | Moderate |
| Aug | 18 | Moderate |
| Sep | 18 | Moderate |
| Oct | 19 | Moderate |
| Nov | 20 | Moderate |
| Dec | 17 | Moderate |
Where is San Martín?
San Martín sits at 3.7°N, 73.7°W, 425 m above sea level, in Colombia. The nearest listed city is Granada, 17 km away.
Topography around San Martín
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Martín.
Within 3 km, the terrain around San Martín has only modest variations in elevation — a maximum elevation change of 70 m around an average of 420 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 429 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,026 m.
The land around San Martín is covered by grassland (68%) and trees (26%) within 3 km, grassland (63%) and trees (33%) within 16 km, and grassland (50%) and trees (48%) within 80 km.
Colombia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 / 240 V · 60 Hz
- Prices
- ≈ 38% of US
- price level, 2025
- GDP per capita
- $8,562
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 74%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 15.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 480
- 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 San Martín (3.6964°, -73.6996°, elevation 425 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.