Climate averages 1991–2020
San Fernando, Spain weather
by month.
See how the year changes. August has the highest average daily maximum; July has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: MarchAprilMayJuneSeptemberOctoberNovember
Long-term climate patterns, not a forecast for a particular trip.
Across the year San Fernando, Spain averages a daytime high of 22.3°C and a nighttime low of 14.6°C, with about 601 mm of rain on roughly 63 days. August is the warmest month (average high 30.4°C) and January the coolest (15.5°C). December is the wettest month with 100 mm; July is the driest with 1.0 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): March, April, May, June, September, October and November. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in San Fernando
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
San Fernando, Spain climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.5°C8.7°C | 8.7°C | 74 | 8.0 | 10.010 h |
| February | 16.4°C9.3°C | 9.3°C | 64 | 6.6 | 10.811 h |
| March | 18.4°C11.1°C | 11.1°C | 65 | 7.5 | 11.912 h |
| April | 20.0°C12.6°C | 12.6°C | 57 | 6.5 | 13.113 h |
| May | 23.2°C15.2°C | 15.2°C | 32 | 4.7 | 14.114 h |
| June | 27.1°C18.5°C | 18.5°C | 6.5 | 1.3 | 14.615 h |
| July | 30.2°C20.6°C | 20.6°C | 1.0 | 0.2 | 14.414 h |
| August | 30.4°C21.1°C | 21.1°C | 3.3 | 0.4 | 13.514 h |
| September | 27.2°C19.2°C | 19.2°C | 27 | 3.5 | 12.412 h |
| October | 23.4°C16.4°C | 16.4°C | 84 | 8.0 | 11.311 h |
| November | 18.8°C12.5°C | 12.5°C | 88 | 7.9 | 10.310 h |
| December | 16.4°C10.2°C | 10.2°C | 100 | 8.3 | 9.710 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
Nearby cities
- Chiclana de la FronteraSpain · 8 kmHigh 21.7°C · Low 15.1°C · 601 mm rain a year
- Cadiz, SpainSpain · 10 kmHigh 22.8°C · Low 14.3°C · 601 mm rain a year
- Jerez de la FronteraSpain · 24 kmHigh 23.5°C · Low 13.2°C · 503 mm rain a year
- AlgecirasSpain · 77 kmHigh 20.7°C · Low 15.8°C · 689 mm rain a year
- GibraltarGibraltar · 84 kmHigh 20.7°C · Low 15.4°C · 641 mm rain a year
- TangierMorocco · 87 kmHigh 21.9°C · Low 14.2°C · 544 mm rain a year
- Dos HermanasSpain · 93 kmHigh 24.4°C · Low 13.1°C · 514 mm rain a year
- Alcalá de GuadairaSpain · 101 kmHigh 24.4°C · Low 12.9°C · 472 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+1, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 36.50°, -6.10° (9 km from the city centre), adjusted up by 0.2°C for the difference between the city's elevation (15 m) and the cell's (43 m). Rain comes from the 0.25° cell at 36.50°, -6.25°. Cadiz, Spain and Chiclana de la Frontera lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.