Hermosillo weather in January
In January, Hermosillo has daytime highs averaging 24 °C, nights around 9.4 °C, with 1.6 wet days. Figures are 1991–2020 climate normals.
- 24.0°C Average high
- 9.4°C Average low
- 1.6days Wet days
- 11mm Rainfall
- 10h Daylight
Daily temperatures through January
How January develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 January | 23.7 °C | 9.3 °C | 6 % |
| 11–20 January | 24.3 °C | 9.4 °C | 4 % |
| 21–31 January | 24.2 °C | 9.6 °C | 5 % |
What to expect
| Measure | Typical January | Share of the month |
|---|---|---|
| Days above 25 °C | 13 of 31 | 41 % |
| Days above 30 °C | 1.2 of 31 | 4 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 1.6 of 31 | 5 % |
Conditions in January
| Measure | Average |
|---|---|
| Mean temperature | 16 °C |
| Record high (1991–2020) | 34 °C |
| Record low (1991–2020) | 0.8 °C |
| Relative humidity | 48 % |
| Wind speed | 14 km/h |
| Cloud cover | 32 % |
Where Hermosillo ranks in January
| Ranking | Position | Value |
|---|---|---|
| Places with the best weather in North America in January | 11thof 50 | 95/100 |
| The driest places in North America in January | 36thof 50 | 11 mm |
January compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 24.0 °C | 11 mm | 32 % |
| February | 25.5 °C | 15 mm | 37 % |
| March | 28.8 °C | 8 mm | 29 % |
| November | 28.1 °C | 15 mm | 27 % |
| December | 23.2 °C | 20 mm | 32 % |
See all twelve months for Hermosillo
- January is the 11th warmest month here.
- It is the 5th driest month of the year.
- It ranks 9th for least cloud cover.
- Days last about 10 hours from sunrise to sunset.
- It rains on 1.6 of 31 days — 5 % of the month.
- Nights are about 15 °C cooler than the middle of the day.
- The hottest January day on record since 1991 reached 34 °C, 9.8 °C above the usual daytime high.
Nearby destinations in January
| Destination | Avg high | Wet days | Sea |
|---|---|---|---|
| Hermosillo | 24 °C | 1.6 | – |
| Ciudad Obregón | 26 °C | 2 | – |
| Nogales | 17 °C | 4 | – |
| Tucson | 18 °C | 4 | – |
| Cuauhtémoc | 15 °C | 3 | – |
| Los Mochis | 26 °C | 1 | 20 |
| Chihuahua | 19 °C | 2 | – |
| San Luis Río Colorado | 21 °C | 2 | – |
| Ciudad Juárez | 15 °C | 3 | – |
QuestionsJanuary in Hermosillo, answered
How warm is Hermosillo in January?
Daily highs average 24 °C and nights fall to about 9.4 °C, a spread of 15 °C between afternoon and dawn. That makes January the 11th warmest month of the year here.
Does it rain much in Hermosillo in January?
January averages 11 mm of rain, spread over about 2 of the 31 days — 5 % of the month. Cloud cover averages 32 % of the sky.
How long are the days in January?
Hermosillo averages 10 hours between sunrise and sunset in January. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.