Today
Sun, Jun 21
Clear sky
37°26°
- Rain chance
- 1%
- Precip
- 0 mm
- Max wind
- 20 km/h
Heroica Guaymas weather forecast
Sonora, Mexico · Hermosillo time · 27.92°, -110.90°
Current conditions · 6:30 PM local
Current conditions in Heroica Guaymas
32°C
Clear sky
Feels like 29°C
- Humidity
- 49%
- Wind
- 18 km/h W
- Gusts
- 27 km/h
- UV index
- 0
- Visibility
- 38.1 km
Right now
Right now in Heroica Guaymas, it's clear sky with the temperature at 32 °C. It feels close to the actual reading at 32 °C. Wind is from the W at 18 km/h. Humidity stands at 40% with sea-level pressure near 1006 hPa.
At a glance
Today
37° / 26°Clear sky · extreme UV
Tomorrow
34° / 26°Thunderstorm · extreme UV
Upcoming · to Saturday
37° / 27°A steady stretch: highs near 37°, lows around 27°, 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 37 °C. Expect thunderstorm tomorrow, between 26 °C and 34 °C. Tuesday brings thunderstorm with a high of 34 °C and a low of 27 °C.
Tomorrow
Mon, Jun 22
Thunderstorm
34°26°
- Rain chance
- 2%
- Precip
- 0 mm
- Max wind
- 20 km/h
Tuesday
Tue, Jun 23
Thunderstorm
34°27°
- Rain chance
- 2%
- Precip
- 0 mm
- Max wind
- 25 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 AM27°0%3 km/h
- 7 AM27°0%5 km/h
- 8 AM32°0%4 km/h
- 9 AM33°0%11 km/h
- 10 AM34°0%10 km/h
- 11 AM36°0%12 km/h
- 12 PM37°0%15 km/h
- 1 PM37°0%18 km/h
- 2 PM37°0%19 km/h
- 3 PM36°0%20 km/h
- 4 PM36°0%15 km/h
- 5 PM35°0%18 km/h
- 6 PM33°0%17 km/h
- 7 PM31°0%18 km/h
- 8 PM29°0%12 km/h
- 9 PM29°0%7 km/h
- 10 PM28°1%8 km/h
- 11 PM27°1%8 km/h
- 12 AM26°1%5 km/h
- 1 AM26°1%3 km/h
- 2 AM26°1%5 km/h
- 3 AM26°1%13 km/h
- 4 AM27°1%15 km/h
- 5 AM27°1%14 km/h
- 6 AM27°1%15 km/h
- 7 AM28°0%18 km/h
- 8 AM29°0%19 km/h
- 9 AM31°0%19 km/h
- 10 AM32°0%20 km/h
- 11 AM33°0%19 km/h
- 12 PM33°0%20 km/h
- 1 PM34°0%20 km/h
- 2 PM33°0%19 km/h
- 3 PM33°0%18 km/h
- 4 PM33°0%16 km/h
- 5 PM32°0%15 km/h
- 6 PM31°0%15 km/h
- 7 PM30°1%14 km/h
- 8 PM29°1%13 km/h
- 9 PM28°2%10 km/h
- 10 PM28°2%10 km/h
- 11 PM28°2%12 km/h
In depth
The weather picture for Heroica Guaymas opens with clear sky; it's 32 °C out, feeling like 32 °C. Today's forecast calls for clear sky, topping out near 37 °C before falling back to 26 °C overnight. Winds blow mainly from the W around 20 km/h, with gusts up to 29 km/h. Highs ease downward through the week, ranging 34 to 37 °C. No meaningful rain shows up in the seven-day outlook, so dry conditions should dominate. Tomorrow brings thunderstorm with a high of 34 °C and a 2% chance of precipitation. The UV index reaches 9 today, so sun protection is sensible during the middle of the day. With the apparent temperature pushing into heat-stress territory, limit strenuous outdoor activity in the afternoon and stay hydrated. Sunrise comes at 05:28 and sunset at 19:22, giving 13.9 hours of daylight. Current humidity sits at 40% with pressure near 1006 hPa. Looking further out, Thursday shows mainly clear with a high around 37 °C, while Saturday ends the week at 34 °C.
Air quality
38
Good
US AQI · European AQI 34
Air quality in Heroica Guaymas is currently good, with a US AQI of 38 (European AQI 34). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 4.8 µg/m³.
Pollutants
- PM2.5
- 4.8 µg/m³
- PM10
- 6.8 µg/m³
- Ozone (O₃)
- 84 µg/m³
- NO₂
- 2.7 µg/m³
- SO₂
- 1.9 µg/m³
- CO
- 105 µg/m³
- Dust
- 1 µg/m³
Sun & UV
- Sunrise
- 5:28 AM
- Sunset
- 7:22 PM
- Daylight
- 13h 55m
- Max UV
- 9 Very high
Wind
- Wind
- 18 km/h
- Gusts
- 27 km/h
- Direction
- W (274°)
Farming weather
Soil temperatures today read surface 27.3 °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 37 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 37 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 189, maize 151.
- Topsoil moisture
- 0.047 m³/m³
- Soil temp
- 27°C
- ET₀ today
- 8.44 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 0 mm
- Wind
- 18 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) | 6:30 PM |
| Temperature (2 m) | 32°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 | 1004 hPa |
| Sea-level pressure | 1006 hPa |
| Wind speed (10 m) | 18 km/h |
| Wind gusts (10 m) | 27 km/h |
| Wind direction (10 m) | 274° (W) |
| Visibility | 38.1 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 37°C / 26°C |
| Today feels-like max / min | 40°C / 26°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 | 20 km/h / 29 km/h |
| Dominant wind direction | 266° (W) |
| Sunrise / sunset | 5:28 AM / 7:22 PM |
| Daylight duration | 13h 55m |
| Sunshine duration | 13h 28m |
| Max UV index | 9 |
| Reference evapotranspiration (ET₀) | 8.44 mm |
| Topsoil moisture (0–1 cm) | 0.047 m³/m³ |
| Surface soil temperature | 27°C |
| US AQI | 38 |
| European AQI | 34 |
| PM2.5 | 4.8 µg/m³ |
| PM10 | 6.8 µg/m³ |
| Ozone (O₃) | 84 µg/m³ |
| Nitrogen dioxide (NO₂) | 2.7 µg/m³ |
| Sulphur dioxide (SO₂) | 1.9 µg/m³ |
| Carbon monoxide (CO) | 105 µg/m³ |
| Dust | 1 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 2%.
What is the temperature in Heroica Guaymas today?
Today Heroica Guaymas sees clear sky with a high of 37 °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 34 °C with thunderstorm.
Is it windy in Heroica Guaymas today?
No, not especially; gusts only reach up to 29 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 38.