San Onofre weather in May
In May, San Onofre sees average daytime highs of 30°C and overnight lows near 25°C, with 220 mm of rain across 28.2 wet days and about 12.4 hours of daylight. It is the 8th-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 2% of the time in May, and the air most often feels miserable.
Daylight stretches from about 12 h 18 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is San Onofre's 10th-clearest and 11th-windiest month. For the whole year in context, see San Onofre's year-round climate.
- Daytime high
- 30°
- 8th warmest
- Overnight low
- 25°
- 12th coldest
- Rainfall
- 220 mm
- 28.2 wet days
- Daylight
- 12 h 24 min
- 5:45 AM – 6:12 PM
- Cloud cover
- 90%
- 10th clearest
- Wind
- 8 km/h
- 11th windiest
- Solar energy
- 4.88 kWh/m²
- Travel score
- 2.9
- out of 10
Temperature in May
Day-to-day highs hold fairly steady near 30°C through the month.
A typical May day in San Onofre reaches about 30°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs on par with April and on par with June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 25 |
| 2 | 30 | 25 |
| 3 | 30 | 25 |
| 4 | 30 | 25 |
| 5 | 30 | 25 |
| 6 | 30 | 25 |
| 7 | 30 | 25 |
| 8 | 30 | 25 |
| 9 | 30 | 25 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 30 | 25 |
| 15 | 30 | 25 |
| 16 | 30 | 25 |
| 17 | 30 | 25 |
| 18 | 30 | 25 |
| 19 | 30 | 25 |
| 20 | 30 | 25 |
| 21 | 30 | 25 |
| 22 | 30 | 25 |
| 23 | 30 | 25 |
| 24 | 30 | 25 |
| 25 | 30 | 25 |
| 26 | 30 | 25 |
| 27 | 30 | 25 |
| 28 | 30 | 25 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
| 31 | 30 | 25 |
How May really feels in San Onofre
Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Onofre weather by month
How May compares with the rest of the year at a glance. May is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 19 | 5.1 | 11.5 | 5.6 |
| Feb | 31° / 25° | 20 | 5.6 | 11.7 | 5.1 |
| Mar | 31° / 25° | 43 | 12 | 11.9 | 4.5 |
| Apr | 30° / 25° | 119 | 22.3 | 12.2 | 3.4 |
| May | 30° / 25° | 220 | 28.2 | 12.4 | 2.9 |
| Jun | 30° / 25° | 210 | 26.1 | 12.6 | 2.9 |
| Jul | 30° / 25° | 189 | 25.7 | 12.5 | 3.0 |
| Aug | 30° / 25° | 207 | 27.3 | 12.3 | 2.9 |
| Sep | 29° / 25° | 220 | 28.2 | 12.1 | 2.9 |
| Oct | 29° / 25° | 251 | 29 | 11.8 | 3.0 |
| Nov | 29° / 25° | 190 | 25.1 | 11.6 | 3.4 |
| Dec | 30° / 25° | 80 | 14.3 | 11.4 | 4.7 |
Cloud cover in May
The sky is clear or mostly clear about 2% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 4% of May, with mostly cloudy or overcast conditions the remaining 93%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 |
| Cloudier (%) | 91 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 93 | 93 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 93 | 93 | 93 | 93 | 92 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 9 | 91 |
| 2 | 8 | 92 |
| 3 | 8 | 92 |
| 4 | 8 | 92 |
| 5 | 8 | 92 |
| 6 | 8 | 92 |
| 7 | 8 | 92 |
| 8 | 8 | 92 |
| 9 | 7 | 93 |
| 10 | 7 | 93 |
| 11 | 6 | 94 |
| 12 | 6 | 94 |
| 13 | 6 | 94 |
| 14 | 6 | 94 |
| 15 | 6 | 94 |
| 16 | 6 | 94 |
| 17 | 6 | 94 |
| 18 | 6 | 94 |
| 19 | 6 | 94 |
| 20 | 6 | 94 |
| 21 | 6 | 94 |
| 22 | 6 | 94 |
| 23 | 6 | 94 |
| 24 | 6 | 94 |
| 25 | 6 | 94 |
| 26 | 6 | 94 |
| 27 | 7 | 93 |
| 28 | 7 | 93 |
| 29 | 7 | 93 |
| 30 | 7 | 93 |
| 31 | 8 | 92 |
Chance of precipitation in May
San Onofre gets around 220 mm of rain over 28.2 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 90% and peaks near 93% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 87 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 90 | 90 | 90 | 91 | 91 | 92 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 93 | 92 | 92 | 92 | 92 |
| Rain chance (%) | |
|---|---|
| 1 | 87 |
| 2 | 88 |
| 3 | 88 |
| 4 | 88 |
| 5 | 88 |
| 6 | 88 |
| 7 | 88 |
| 8 | 88 |
| 9 | 88 |
| 10 | 89 |
| 11 | 89 |
| 12 | 89 |
| 13 | 89 |
| 14 | 90 |
| 15 | 90 |
| 16 | 90 |
| 17 | 91 |
| 18 | 91 |
| 19 | 92 |
| 20 | 92 |
| 21 | 92 |
| 22 | 93 |
| 23 | 93 |
| 24 | 93 |
| 25 | 93 |
| 26 | 93 |
| 27 | 93 |
| 28 | 92 |
| 29 | 92 |
| 30 | 92 |
| 31 | 92 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Miserable (%) | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 81 | 80 | 80 | 79 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 23 | 77 |
| 2 | 22 | 78 |
| 3 | 21 | 79 |
| 4 | 20 | 80 |
| 5 | 19 | 81 |
| 6 | 19 | 81 |
| 7 | 18 | 82 |
| 8 | 18 | 82 |
| 9 | 17 | 83 |
| 10 | 17 | 83 |
| 11 | 17 | 83 |
| 12 | 17 | 83 |
| 13 | 17 | 83 |
| 14 | 17 | 83 |
| 15 | 17 | 83 |
| 16 | 17 | 83 |
| 17 | 18 | 82 |
| 18 | 18 | 82 |
| 19 | 19 | 81 |
| 20 | 20 | 80 |
| 21 | 20 | 80 |
| 22 | 21 | 79 |
| 23 | 22 | 78 |
| 24 | 22 | 78 |
| 25 | 23 | 77 |
| 26 | 23 | 77 |
| 27 | 23 | 77 |
| 28 | 23 | 77 |
| 29 | 23 | 77 |
| 30 | 23 | 77 |
| 31 | 23 | 77 |
Wind in May
Winds average 8 km/h in May.
Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 18 min at the start of May to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over May. Sunrise moves from 5:49 AM to 5:44 AM, and sunset from 6:09 PM to 6:15 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 |
| Sunrise (AM) | 5:49 | 5:49 | 5:48 | 5:48 | 5:48 | 5:47 | 5:47 | 5:47 | 5:47 | 5:46 | 5:46 | 5:46 | 5:46 | 5:45 | 5:45 | 5:45 | 5:45 | 5:45 | 5:45 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 |
| Sunset (PM) | 6:09 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:11 | 6:11 | 6:11 | 6:11 | 6:11 | 6:11 | 6:12 | 6:12 | 6:12 | 6:12 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 5:49 | 6:09 |
| 2 | 12.3 | 5:49 | 6:10 |
| 3 | 12.4 | 5:48 | 6:10 |
| 4 | 12.4 | 5:48 | 6:10 |
| 5 | 12.4 | 5:48 | 6:10 |
| 6 | 12.4 | 5:47 | 6:10 |
| 7 | 12.4 | 5:47 | 6:10 |
| 8 | 12.4 | 5:47 | 6:10 |
| 9 | 12.4 | 5:47 | 6:10 |
| 10 | 12.4 | 5:46 | 6:11 |
| 11 | 12.4 | 5:46 | 6:11 |
| 12 | 12.4 | 5:46 | 6:11 |
| 13 | 12.4 | 5:46 | 6:11 |
| 14 | 12.4 | 5:45 | 6:11 |
| 15 | 12.4 | 5:45 | 6:11 |
| 16 | 12.4 | 5:45 | 6:12 |
| 17 | 12.5 | 5:45 | 6:12 |
| 18 | 12.5 | 5:45 | 6:12 |
| 19 | 12.5 | 5:45 | 6:12 |
| 20 | 12.5 | 5:44 | 6:13 |
| 21 | 12.5 | 5:44 | 6:13 |
| 22 | 12.5 | 5:44 | 6:13 |
| 23 | 12.5 | 5:44 | 6:13 |
| 24 | 12.5 | 5:44 | 6:13 |
| 25 | 12.5 | 5:44 | 6:14 |
| 26 | 12.5 | 5:44 | 6:14 |
| 27 | 12.5 | 5:44 | 6:14 |
| 28 | 12.5 | 5:44 | 6:14 |
| 29 | 12.5 | 5:44 | 6:15 |
| 30 | 12.5 | 5:44 | 6:15 |
| 31 | 12.5 | 5:44 | 6:15 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 4.88 kWh/m².
For context, solar energy here swings from a low near 4.48 kWh/m² to a high of 5.97 kWh/m² in March across the year — May's 4.88 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.0 | Bright |
| 2 | 5.0 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Is May a good time to visit San Onofre?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in San Onofre.
What to pack for San Onofre in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, San Onofre sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.
Sea temperature near San Onofre in May
The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in July at about 30°C and coldest in March near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in San Onofre in May
Clear-sky midday UV in May peaks around 13 (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 Onofre peaks around June 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 10 (very high).
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) | 11 | 12 | 12 | 12 | 13 | 13 | 11 | 12 | 12 | 12 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 13 | Extreme |
| Jun | 13 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Very high |
| Dec | 10 | Very high |
Air quality in San Onofre in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in San Onofre is worst in July — around 26 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 11 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) | 14 | 18 | 26 | 25 | 25 | 23 | 26 | 20 | 14 | 12 | 11 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 18 | Moderate |
| Mar | 26 | Moderate |
| Apr | 25 | Moderate |
| May | 25 | Moderate |
| Jun | 23 | Moderate |
| Jul | 26 | Moderate |
| Aug | 20 | Moderate |
| Sep | 14 | Moderate |
| Oct | 12 | Good |
| Nov | 11 | Good |
| Dec | 14 | Moderate |
Where is San Onofre?
San Onofre sits at 9.7°N, 75.5°W, 37 m above sea level, in Colombia. The nearest listed city is Santiago de Tolú, 24 km away.
Topography around San Onofre
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Onofre.
Within 3 km, the terrain around San Onofre has only modest variations in elevation — a maximum elevation change of 53 m around an average of 27 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 232 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.
The land around San Onofre is covered by grassland (79%) within 3 km, grassland (52%) and trees (33%) within 16 km, and grassland (39%), water (32%) and trees (23%) 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 Onofre (9.7359°, -75.5263°, elevation 37 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).