11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Mainly clear
19°
Feels like 19°
Wind↑ SSW 3 km/h
Humidity 38 %
Afternoon
Mainly clear
25°
Feels like 25°
Wind↑ W 9 km/h
Humidity 23 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
19°
Feels like 19°
Wind↑ NW 2 km/h
Humidity 32 %
Afternoon
Clear sky
27°
Feels like 27°
Wind↑ SW 15 km/h
Humidity 31 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
20°
Feels like 20°
Wind↑ SE 6 km/h
Humidity 57 %
Afternoon
Clear sky
25°
Feels like 26°
Wind↑ WSW 18 km/h
Humidity 38 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
19°
Feels like 19°
Wind↑ ESE 6 km/h
Humidity 64 %
Hermosillo forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Hermosillo climate: what a normal year looks like
Day and night differ most in May: 35 °C in the afternoon against 18 °C before dawn, a 17 °C swing.
A normal year brings roughly 270 mm of rain — less than 95% of the towns of 20,000+ people we compared it with.
Afternoons reach 30 °C or more from April to October; the typical peak is 39 °C in June.
The wet season is concentrated from July to September, which brings 61% of the annual total; August by itself averages 60 mm.
Forecast highs for the coming week average 29 °C, 5 °C cooler than a normal October (34 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
24 °C
9 °C
14 mm
Feb
25 °C
10 °C
18 mm
Mar
29 °C
12 °C
8 mm
Apr
32 °C
15 °C
2 mm
May
36 °C
18 °C
1 mm
Jun
39 °C
24 °C
4 mm
Jul
38 °C
27 °C
48 mm
Aug
37 °C
26 °C
60 mm
Sep
36 °C
24 °C
57 mm
Oct
34 °C
19 °C
23 mm
Nov
28 °C
13 °C
15 mm
Dec
24 °C
9 °C
21 mm
Whole year
32 °C
17 °C
270 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 29.09° N, 110.97° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Hermosillo: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.51µg/m³
PM101µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Hermosillo
Rain observed over the last two hours by official weather radars around Hermosillo, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Hermosillo
Waning gibbous
87 % illuminated · 18.3 days
Rise 22:30 Set 12:31
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (America/Hermosillo); phase and lit fraction from a synodic calculation.
Look up a past day in Hermosillo
Curious about the weather in Hermosillo on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Hermosillo weather at a glance
This page gathers everything about the weather in Hermosillo, Sonora: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 30 °C (feels like 34 °C) and the wind blows at 4 km/h.
Expected range today: 20 °C to 30 °C and a dry sky; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Hermosillo forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
