Climate averages 1991–2020
Rosarito weather
in August.
A warm, very dry month: the warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Rosarito: daytime highs average 24.9°C and nights cool to about 19.3°C. By daytime temperature it is the warmest month of the year.
Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 20 min on an average August day.
The nearest other city in this atlas is Tijuana (16 km away). In August its highs average 24.8°C, about as warm as Rosarito, with 1.2 mm of rain.
Among the 153 cities listed in Mexico, Rosarito ranks joint 103rd of 153 for the warmest August highs and 1st of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; Rosarito is 3.0°C cooler than that mean.
From August to September, average highs fall by 0.4°C to 24.5°C, and monthly rainfall rises from under 1 mm to 3.1 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rosarito climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C9.9°C | 9.9°C | 56 | 5.5 | 10.310 h |
| February | 16.8°C10.1°C | 10.1°C | 69 | 6.3 | 11.011 h |
| March | 17.4°C11.0°C | 11.0°C | 43 | 5.2 | 12.012 h |
| April | 18.5°C12.3°C | 12.3°C | 18 | 3.2 | 13.013 h |
| May | 19.6°C14.2°C | 14.2°C | 7.3 | 1.5 | 13.814 h |
| June | 21.6°C16.0°C | 16.0°C | 1.0 | 0.2 | 14.214 h |
| July | 23.9°C18.3°C | 18.3°C | 1.1 | 0.2 | 14.114 h |
| August, selected | 24.9°C19.3°C | 19.3°C | 0.4 | 0.1 | 13.313 h |
| September | 24.5°C18.5°C | 18.5°C | 3.1 | 0.5 | 12.412 h |
| October | 22.5°C16.0°C | 16.0°C | 13 | 2.1 | 11.411 h |
| November | 19.9°C12.7°C | 12.7°C | 20 | 3.1 | 10.511 h |
| December | 17.1°C9.9°C | 9.9°C | 44 | 5.2 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Tijuana in AugustMexico · 16 kmHigh 24.8°C · Low 18.6°C · 1.2 mm rain
- Chula Vista in AugustUnited States · 31 kmHigh 24.5°C · Low 18.1°C · 1.8 mm rain
- San Diego in AugustUnited States · 41 kmHigh 25.4°C · Low 18.0°C · 0.4 mm rain
- El Cajon in AugustUnited States · 49 kmHigh 28.3°C · Low 18.7°C · 1.8 mm rain
- Ensenada in AugustMexico · 69 kmHigh 28.4°C · Low 20.8°C · 1.8 mm rain
- Escondido in AugustUnited States · 84 kmHigh 29.1°C · Low 18.8°C · 2.6 mm rain
- San Marcos in AugustUnited States · 88 kmHigh 26.9°C · Low 18.2°C · 1.0 mm rain
- Vista in AugustUnited States · 95 kmHigh 28.9°C · Low 19.4°C · 1.0 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rosarito) is explained once on the Rosarito year overview and on the Sources, method and limits page.