Rosarito weather in May
In May, Rosarito sees average daytime highs of 18°C and overnight lows near 14°C, with 7 mm of rain across 1.5 wet days and about 13.6 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 56% of the time in May, and the air most often feels dry.
Daylight stretches from about 13 h 18 min at the start of May to 13 h 54 min by month's end. Set against the rest of the year, May is Rosarito's 8th-clearest and 3rd-windiest month. For the whole year in context, see Rosarito's year-round climate.
- Daytime high
- 18°
- 7th warmest
- Overnight low
- 14°
- 7th coldest
- Rainfall
- 7 mm
- 1.5 wet days
- Daylight
- 13 h 42 min
- 4:55 AM – 6:34 PM
- Cloud cover
- 38%
- 8th clearest
- Wind
- 12 km/h
- 3rd windiest
- Solar energy
- 7.42 kWh/m²
- Travel score
- 7.3
- out of 10
Rosarito is municipal seat of Rosarito, State of Baja California, Mexico.
- Founded
- 1885
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 18°C through the month.
A typical May day in Rosarito reaches about 18°C in the afternoon and slips back to 14°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, May runs on par with April and about 1°C cooler than 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) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Avg low (°C) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 18 | 14 |
| 2 | 18 | 14 |
| 3 | 18 | 14 |
| 4 | 18 | 14 |
| 5 | 18 | 14 |
| 6 | 18 | 14 |
| 7 | 18 | 14 |
| 8 | 18 | 14 |
| 9 | 18 | 14 |
| 10 | 18 | 14 |
| 11 | 18 | 14 |
| 12 | 18 | 14 |
| 13 | 18 | 14 |
| 14 | 18 | 14 |
| 15 | 18 | 14 |
| 16 | 18 | 14 |
| 17 | 18 | 14 |
| 18 | 18 | 14 |
| 19 | 18 | 14 |
| 20 | 18 | 14 |
| 21 | 18 | 14 |
| 22 | 18 | 15 |
| 23 | 18 | 15 |
| 24 | 18 | 15 |
| 25 | 18 | 15 |
| 26 | 18 | 15 |
| 27 | 18 | 15 |
| 28 | 18 | 15 |
| 29 | 18 | 15 |
| 30 | 18 | 15 |
| 31 | 18 | 15 |
Rosarito weather by month
How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 16° / 12° | 56 | 5.5 | 10.1 | 5.9 |
| Feb | 16° / 12° | 69 | 6.3 | 10.8 | 5.5 |
| Mar | 16° / 12° | 43 | 5.2 | 11.8 | 5.8 |
| Apr | 17° / 13° | 18 | 3.2 | 12.8 | 6.6 |
| May | 18° / 14° | 7 | 1.5 | 13.6 | 7.3 |
| Jun | 19° / 16° | 1 | 0.2 | 14.1 | 8.1 |
| Jul | 21° / 18° | 1 | 0.2 | 13.9 | 8.6 |
| Aug | 22° / 19° | 0 | 0.1 | 13.2 | 9.0 |
| Sep | 22° / 18° | 3 | 0.5 | 12.2 | 8.8 |
| Oct | 21° / 17° | 13 | 2.1 | 11.2 | 8.2 |
| Nov | 19° / 14° | 20 | 3.1 | 10.3 | 7.4 |
| Dec | 16° / 12° | 44 | 5.2 | 9.9 | 6.0 |
Cloud cover in May
The sky is clear or mostly clear about 56% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 23%.
| 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 (%) | 76 | 76 | 76 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 78 | 79 | 79 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 81 |
| Cloudier (%) | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 76 | 24 |
| 2 | 76 | 24 |
| 3 | 76 | 24 |
| 4 | 75 | 25 |
| 5 | 74 | 26 |
| 6 | 74 | 26 |
| 7 | 74 | 26 |
| 8 | 74 | 26 |
| 9 | 74 | 26 |
| 10 | 74 | 26 |
| 11 | 76 | 24 |
| 12 | 76 | 24 |
| 13 | 76 | 24 |
| 14 | 76 | 24 |
| 15 | 77 | 23 |
| 16 | 77 | 23 |
| 17 | 77 | 23 |
| 18 | 78 | 22 |
| 19 | 79 | 21 |
| 20 | 79 | 21 |
| 21 | 79 | 21 |
| 22 | 79 | 21 |
| 23 | 79 | 21 |
| 24 | 80 | 20 |
| 25 | 80 | 20 |
| 26 | 80 | 20 |
| 27 | 80 | 20 |
| 28 | 80 | 20 |
| 29 | 80 | 20 |
| 30 | 80 | 20 |
| 31 | 81 | 19 |
Chance of precipitation in May
Rosarito gets around 7 mm of rain over 1.5 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 5% and peaks near 8% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 8 |
| 2 | 8 |
| 3 | 8 |
| 4 | 8 |
| 5 | 8 |
| 6 | 8 |
| 7 | 7 |
| 8 | 7 |
| 9 | 7 |
| 10 | 7 |
| 11 | 7 |
| 12 | 6 |
| 13 | 6 |
| 14 | 6 |
| 15 | 5 |
| 16 | 5 |
| 17 | 5 |
| 18 | 4 |
| 19 | 4 |
| 20 | 4 |
| 21 | 3 |
| 22 | 3 |
| 23 | 3 |
| 24 | 3 |
| 25 | 2 |
| 26 | 2 |
| 27 | 2 |
| 28 | 2 |
| 29 | 2 |
| 30 | 2 |
| 31 | 1 |
Humidity in May
Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the dry band about 59% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 69 | 68 | 67 | 66 | 65 | 64 | 64 | 63 | 63 | 62 | 62 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 58 | 58 | 57 | 56 | 54 | 53 | 52 | 50 | 48 | 46 | 45 |
| Comfortable (%) | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 40 | 41 | 42 | 43 | 44 | 46 | 47 | 49 | 50 |
| Humid (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 5 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 69 | 29 | 2 |
| 2 | 68 | 30 | 2 |
| 3 | 67 | 31 | 2 |
| 4 | 66 | 32 | 2 |
| 5 | 65 | 33 | 2 |
| 6 | 64 | 34 | 2 |
| 7 | 64 | 34 | 2 |
| 8 | 63 | 35 | 2 |
| 9 | 63 | 35 | 2 |
| 10 | 62 | 36 | 2 |
| 11 | 62 | 36 | 2 |
| 12 | 61 | 37 | 2 |
| 13 | 61 | 37 | 2 |
| 14 | 61 | 37 | 2 |
| 15 | 60 | 38 | 2 |
| 16 | 60 | 38 | 2 |
| 17 | 60 | 38 | 2 |
| 18 | 60 | 38 | 2 |
| 19 | 60 | 38 | 2 |
| 20 | 60 | 38 | 2 |
| 21 | 58 | 39 | 3 |
| 22 | 58 | 39 | 3 |
| 23 | 57 | 40 | 3 |
| 24 | 56 | 41 | 3 |
| 25 | 54 | 42 | 4 |
| 26 | 53 | 43 | 4 |
| 27 | 52 | 44 | 4 |
| 28 | 50 | 46 | 5 |
| 29 | 48 | 47 | 5 |
| 30 | 46 | 49 | 5 |
| 31 | 45 | 50 | 5 |
Wind in May
Winds average 12 km/h in May.
Across May, daily wind ranges from about 11 km/h on the calmest days to 12 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) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 12 | calm |
| 17 | 12 | calm |
| 18 | 12 | calm |
| 19 | 12 | calm |
| 20 | 12 | calm |
| 21 | 12 | calm |
| 22 | 12 | calm |
| 23 | 12 | calm |
| 24 | 12 | calm |
| 25 | 12 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 18 min at the start of May to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 36 minutes over May. Sunrise moves from 5:08 AM to 4:47 AM, and sunset from 6:23 PM to 6:44 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) | 13.3 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 |
| Sunrise (AM) | 5:08 | 5:07 | 5:06 | 5:05 | 5:04 | 5:03 | 5:02 | 5:01 | 5:00 | 4:59 | 4:59 | 4:58 | 4:57 | 4:56 | 4:56 | 4:55 | 4:54 | 4:53 | 4:53 | 4:52 | 4:52 | 4:51 | 4:51 | 4:50 | 4:50 | 4:49 | 4:49 | 4:48 | 4:48 | 4:47 | 4:47 |
| Sunset (PM) | 6:23 | 6:24 | 6:25 | 6:25 | 6:26 | 6:27 | 6:28 | 6:28 | 6:29 | 6:30 | 6:30 | 6:31 | 6:32 | 6:33 | 6:33 | 6:34 | 6:35 | 6:35 | 6:36 | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 | 6:40 | 6:41 | 6:42 | 6:42 | 6:43 | 6:43 | 6:44 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 5:08 | 6:23 |
| 2 | 13.3 | 5:07 | 6:24 |
| 3 | 13.3 | 5:06 | 6:25 |
| 4 | 13.3 | 5:05 | 6:25 |
| 5 | 13.4 | 5:04 | 6:26 |
| 6 | 13.4 | 5:03 | 6:27 |
| 7 | 13.4 | 5:02 | 6:28 |
| 8 | 13.5 | 5:01 | 6:28 |
| 9 | 13.5 | 5:00 | 6:29 |
| 10 | 13.5 | 4:59 | 6:30 |
| 11 | 13.5 | 4:59 | 6:30 |
| 12 | 13.6 | 4:58 | 6:31 |
| 13 | 13.6 | 4:57 | 6:32 |
| 14 | 13.6 | 4:56 | 6:33 |
| 15 | 13.6 | 4:56 | 6:33 |
| 16 | 13.7 | 4:55 | 6:34 |
| 17 | 13.7 | 4:54 | 6:35 |
| 18 | 13.7 | 4:53 | 6:35 |
| 19 | 13.7 | 4:53 | 6:36 |
| 20 | 13.7 | 4:52 | 6:37 |
| 21 | 13.8 | 4:52 | 6:38 |
| 22 | 13.8 | 4:51 | 6:38 |
| 23 | 13.8 | 4:51 | 6:39 |
| 24 | 13.8 | 4:50 | 6:40 |
| 25 | 13.8 | 4:50 | 6:40 |
| 26 | 13.9 | 4:49 | 6:41 |
| 27 | 13.9 | 4:49 | 6:42 |
| 28 | 13.9 | 4:48 | 6:42 |
| 29 | 13.9 | 4:48 | 6:43 |
| 30 | 13.9 | 4:47 | 6:43 |
| 31 | 13.9 | 4:47 | 6:44 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 7.42 kWh/m².
For context, solar energy here swings from a low near 3.2 kWh/m² to a high of 7.85 kWh/m² in June across the year — May's 7.42 kWh/m² sits near the top of that range.
| 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) | 7.2 | 7.2 | 7.2 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.4 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.6 | 7.6 | 7.6 | 7.6 | 7.7 | 7.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.2 | Intense |
| 2 | 7.2 | Intense |
| 3 | 7.2 | Intense |
| 4 | 7.2 | Intense |
| 5 | 7.3 | Intense |
| 6 | 7.3 | Intense |
| 7 | 7.3 | Intense |
| 8 | 7.3 | Intense |
| 9 | 7.3 | Intense |
| 10 | 7.3 | Intense |
| 11 | 7.3 | Intense |
| 12 | 7.3 | Intense |
| 13 | 7.4 | Intense |
| 14 | 7.4 | Intense |
| 15 | 7.4 | Intense |
| 16 | 7.4 | Intense |
| 17 | 7.4 | Intense |
| 18 | 7.4 | Intense |
| 19 | 7.5 | Intense |
| 20 | 7.5 | Intense |
| 21 | 7.5 | Intense |
| 22 | 7.5 | Intense |
| 23 | 7.5 | Intense |
| 24 | 7.5 | Intense |
| 25 | 7.5 | Intense |
| 26 | 7.6 | Intense |
| 27 | 7.6 | Intense |
| 28 | 7.6 | Intense |
| 29 | 7.6 | Intense |
| 30 | 7.7 | Intense |
| 31 | 7.7 | Intense |
Is May a good time to visit Rosarito?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is one of the better times to visit Rosarito for general sightseeing.
What to pack for Rosarito in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Rosarito sees daytime highs around 18°C and nights near 14°C. Pack sun protection.
Sea temperature near Rosarito in May
The nearest coast averages about 17°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 21°C and coldest in February near 15°C.
It's comfortable for a long swim from Jul 18 to Sep 29 — about 2.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 15 | 16 | 16 | 17 | 18 | 20 | 21 | 21 | 19 | 18 | 16 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Cool |
| Feb | 15 | Cool |
| Mar | 16 | Cool |
| Apr | 16 | Cool |
| May | 17 | Cool |
| Jun | 18 | Cool |
| Jul | 20 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 19 | Cool |
| Nov | 18 | Cool |
| Dec | 16 | Cool |
UV index in Rosarito in May
Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rosarito peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (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) | 4 | 5 | 5 | 8 | 8 | 11 | 11 | 10 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 5 | High |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Rosarito 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 Rosarito is worst in October — around 33 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (May, 6 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) | 11 | 11 | 10 | 9 | 6 | 9 | 8 | 9 | 16 | 33 | 13 | 17 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 10 | Good |
| Apr | 9 | Good |
| May | 6 | Good |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 9 | Good |
| Sep | 16 | Moderate |
| Oct | 33 | Moderate |
| Nov | 13 | Moderate |
| Dec | 17 | Moderate |
Where is Rosarito?
Rosarito sits at 32.4°N, 117.0°W, 46 m above sea level, in Mexico. The nearest listed city is Pórticos de San Antonio, 9.0 km away.
Topography around Rosarito
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rosarito.
Within 3 km, the terrain around Rosarito has only modest variations in elevation — a maximum elevation change of 174 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 725 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,966 m.
The land around Rosarito is covered by artificial surfaces (39%) and grassland (37%) within 3 km, water (45%) and grassland (30%) within 16 km, and water (38%) and shrubs (27%) 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 Rosarito (32.3604°, -117.0464°, elevation 46 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).