Today
Sun, Jun 21
Clear sky
36°26°
- Rain chance
- 1%
- Precip
- 0 mm
- Max wind
- 19 km/h
Heroica Guaymas air quality
Sonora, Mexico · Hermosillo time · 27.92°, -110.90°
Current conditions · 6:45 AM local
Current conditions in Heroica Guaymas
28°C
Clear sky
Feels like 29°C
- Humidity
- 49%
- Wind
- 5 km/h NNW
- Gusts
- 6 km/h
- UV index
- 0
- Visibility
- 38.1 km
Air quality
32
Good
US AQI · European AQI 24
Air quality in Heroica Guaymas is currently good, with a US AQI of 32 (European AQI 24). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 5 µg/m³.
Pollutants
- PM2.5
- 5 µg/m³
- PM10
- 9 µg/m³
- Ozone (O₃)
- 59 µg/m³
- NO₂
- 4.2 µg/m³
- SO₂
- 0.8 µg/m³
- CO
- 111 µg/m³
- Dust
- 5 µg/m³
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now
Heroica Guaymas is currently seeing clear sky, with 28 °C on the thermometer. It feels close to the actual reading at 29 °C. Wind is from the NNW at 5 km/h. Humidity stands at 40% with sea-level pressure near 1008 hPa.
At a glance
Today
36° / 26°Clear sky · extreme UV
Tomorrow
33° / 26°Thunderstorm · extreme UV
Upcoming · to Saturday
38° / 29°A steady stretch: highs near 38°, lows around 29°, and no day above a 2% rain chance through Saturday.
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Next 3 days
Expect clear sky today, between 26 °C and 36 °C. Expect thunderstorm tomorrow, between 26 °C and 33 °C. Tuesday brings overcast with a high of 34 °C and a low of 29 °C.
Tomorrow
Mon, Jun 22
Thunderstorm
33°26°
- Rain chance
- 1%
- Precip
- 0 mm
- Max wind
- 21 km/h
Tuesday
Tue, Jun 23
Overcast
34°29°
- Rain chance
- 2%
- Precip
- 0 mm
- Max wind
- 24 km/h
Next 48 hours
- 12 AM28°0%12 km/h
- 1 AM28°0%9 km/h
- 2 AM29°1%8 km/h
- 3 AM28°0%9 km/h
- 4 AM28°0%7 km/h
- 5 AM26°0%7 km/h
- 6 AM26°0%6 km/h
- 7 AM29°0%3 km/h
- 8 AM32°0%4 km/h
- 9 AM33°0%9 km/h
- 10 AM34°0%12 km/h
- 11 AM35°0%14 km/h
- 12 PM35°0%15 km/h
- 1 PM36°0%16 km/h
- 2 PM36°0%18 km/h
- 3 PM35°0%19 km/h
- 4 PM35°0%17 km/h
- 5 PM33°0%18 km/h
- 6 PM32°0%18 km/h
- 7 PM30°0%14 km/h
- 8 PM29°0%8 km/h
- 9 PM28°0%8 km/h
- 10 PM27°1%8 km/h
- 11 PM27°1%7 km/h
- 12 AM26°1%5 km/h
- 1 AM26°1%7 km/h
- 2 AM26°1%9 km/h
- 3 AM26°1%11 km/h
- 4 AM27°1%14 km/h
- 5 AM27°1%15 km/h
- 6 AM27°1%18 km/h
- 7 AM28°1%21 km/h
- 8 AM29°1%21 km/h
- 9 AM30°0%20 km/h
- 10 AM32°0%18 km/h
- 11 AM33°0%18 km/h
- 12 PM33°0%19 km/h
- 1 PM33°0%20 km/h
- 2 PM33°0%20 km/h
- 3 PM33°0%18 km/h
- 4 PM32°0%17 km/h
- 5 PM31°0%16 km/h
- 6 PM30°0%16 km/h
- 7 PM29°0%17 km/h
- 8 PM29°0%13 km/h
- 9 PM29°0%10 km/h
- 10 PM29°0%10 km/h
- 11 PM29°0%15 km/h
In depth
The weather picture for Heroica Guaymas opens with clear sky; it's 28 °C out, feeling like 29 °C. Today's forecast calls for clear sky, topping out near 36 °C before falling back to 26 °C overnight. Winds blow mainly from the W around 19 km/h, with gusts up to 28 km/h. Daytime highs hold fairly steady this week, staying within 33 to 38 °C. No meaningful rain shows up in the seven-day outlook, so dry conditions should dominate. Tomorrow brings thunderstorm with a high of 33 °C and a 1% chance of precipitation. The UV index reaches 9 today, so sun protection is sensible during the middle of the day. Sunrise comes at 05:28 and sunset at 19:22, giving 13.9 hours of daylight. Current humidity sits at 40% with pressure near 1008 hPa. Looking further out, Thursday shows overcast with a high around 38 °C, while Saturday ends the week at 34 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Sun & UV
- Sunrise
- 5:28 AM
- Sunset
- 7:22 PM
- Daylight
- 13h 55m
- Max UV
- 9 Very high
Wind
- Wind
- 5 km/h
- Gusts
- 6 km/h
- Direction
- NNW (337°)
Farming weather
Soil temperatures today read surface 27.2 °C, 6 cm 32.5 °C, 18 cm 36.3 °C, 54 cm 33.7 °C. Soil moisture sits at 0-1 cm at 0.05 m³/m³, 3-9 cm at 0.12 m³/m³, 27-81 cm at 0.25 m³/m³. For wheat, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 55 mm against only 0 mm of expected rain — a 55 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 06:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 38 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 38 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 190, maize 151.
- Topsoil moisture
- 0.047 m³/m³
- Soil temp
- 27°C
- ET₀ today
- 8.22 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 0 mm
- Wind
- 5 km/h
- Humidity
- 49%
Advisory summary
No weather alert thresholds are crossed for Heroica Guaymas in the current forecast (derived from forecast data, not official warnings). Conditions may still change — check back for updates.
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All data for Heroica Guaymas
| Variable | Value |
|---|---|
| City | Heroica Guaymas, Sonora, Mexico |
| Coordinates | 27.91989, -110.89888 |
| Elevation | 18 m |
| Timezone | America/Hermosillo |
| Population | 117,253 |
| Observed at (local) | 6:45 AM |
| Temperature (2 m) | 28°C |
| Apparent temperature | 29°C |
| Relative humidity (2 m) | 49% |
| Dew point (2 m) | 17°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 0 |
| Cloud cover | 0% |
| Surface pressure | 1006 hPa |
| Sea-level pressure | 1008 hPa |
| Wind speed (10 m) | 5 km/h |
| Wind gusts (10 m) | 6 km/h |
| Wind direction (10 m) | 337° (NNW) |
| Visibility | 38.1 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 36°C / 26°C |
| Today feels-like max / min | 38°C / 25°C |
| Today precipitation sum | 0 mm |
| Today rain sum | 0 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 1% |
| Today max wind / gusts | 19 km/h / 28 km/h |
| Dominant wind direction | 259° (W) |
| Sunrise / sunset | 5:28 AM / 7:22 PM |
| Daylight duration | 13h 55m |
| Sunshine duration | 13h 02m |
| Max UV index | 9 |
| Reference evapotranspiration (ET₀) | 8.22 mm |
| Topsoil moisture (0–1 cm) | 0.047 m³/m³ |
| Surface soil temperature | 27°C |
| US AQI | 32 |
| European AQI | 24 |
| PM2.5 | 5 µg/m³ |
| PM10 | 9 µg/m³ |
| Ozone (O₃) | 59 µg/m³ |
| Nitrogen dioxide (NO₂) | 4.2 µg/m³ |
| Sulphur dioxide (SO₂) | 0.8 µg/m³ |
| Carbon monoxide (CO) | 111 µg/m³ |
| Dust | 5 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/mx/sonora/heroica-guaymas" width="320" height="180" frameborder="0" title="Heroica Guaymas weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Heroica Guaymas tomorrow?
Rain is unlikely in Heroica Guaymas tomorrow; the precipitation chance stays around 1%.
What is the temperature in Heroica Guaymas today?
Today Heroica Guaymas sees clear sky with a high of 36 °C and a low of 26 °C.
How hot will it be in Heroica Guaymas tomorrow?
Tomorrow's high in Heroica Guaymas is forecast at 33 °C with thunderstorm.
Is it windy in Heroica Guaymas today?
No, not especially; gusts only reach up to 28 km/h today.
What is the UV index in Heroica Guaymas today?
The UV index peaks at 9 today, which is very high.
What time is sunrise and sunset in Heroica Guaymas today?
The sun rises at 05:28 and sets at 19:22 local time.
Is the air quality in Heroica Guaymas good today?
Air quality is good right now, with a US AQI reading of 32.