Today
Sun, Jun 21
Thunderstorm with slight hail
36°25°
- Rain chance
- 88%
- Precip
- 4 mm
- Max wind
- 15 km/h
Umán air quality
Yucatán, Mexico · Merida time · 20.88°, -89.75°
Extreme heat today: feels-like temperatures up to 41 °C.
Extreme heat today: feels-like temperatures up to 41 °C.
Derived advisory — not an official warning
Extreme heat Friday: feels-like temperatures up to 40 °C.
Extreme heat Friday: feels-like temperatures up to 40 °C.
Derived advisory — not an official warning
Current conditions · 7:00 AM local
Current conditions in Umán
27°C
Clear sky
Feels like 31°C
- Humidity
- 83%
- Wind
- 9 km/h SE
- Gusts
- 23 km/h
- UV index
- 1.05
- Visibility
- 29 km
Air quality
37
Good
US AQI · European AQI 18
Air quality in Umán is currently good, with a US AQI of 37 (European AQI 18). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 8.1 µg/m³.
Pollutants
- PM2.5
- 8.1 µg/m³
- PM10
- 12.2 µg/m³
- Ozone (O₃)
- 41 µg/m³
- NO₂
- 1.4 µg/m³
- SO₂
- 1.5 µg/m³
- CO
- 111 µg/m³
- Dust
- 2 µg/m³
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now
Right now in Umán, it's clear sky with the temperature at 26 °C. It feels warmer than it reads, more like 31 °C. Wind is from the SE at 9 km/h. Humidity stands at 83% with sea-level pressure near 1014 hPa.
At a glance
Today
36° / 25°Thunderstorm with slight hail · rain likely (88%)
Tomorrow
36° / 25°Overcast · extreme UV
Upcoming · to Saturday
36° / 23°Highs 36°, lows 23°. The most active day looks like Friday, when rain chances peak at 88%.
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Next 3 days
Expect thunderstorm with slight hail today, between 25 °C and 36 °C. Rain chance peaks at 88% with around 4 mm possible. Tomorrow looks like overcast; temperatures run from 25 °C up to 36 °C. Gusts may reach 43 km/h from the ESE. Tuesday looks like thunderstorm; temperatures run from 25 °C up to 36 °C.
Tomorrow
Mon, Jun 22
Overcast
36°25°
- Rain chance
- 2%
- Precip
- 0 mm
- Max wind
- 19 km/h
Tuesday
Tue, Jun 23
Thunderstorm
36°25°
- Rain chance
- 29%
- Precip
- 0.1 mm
- Max wind
- 18 km/h
Next 48 hours
- 12 AM27°0%14 km/h
- 1 AM26°0%13 km/h
- 2 AM26°0%12 km/h
- 3 AM25°0%11 km/h
- 4 AM25°0%11 km/h
- 5 AM25°0%12 km/h
- 6 AM25°0%12 km/h
- 7 AM27°0%9 km/h
- 8 AM29°0%13 km/h
- 9 AM30°0%13 km/h
- 10 AM32°0%11 km/h
- 11 AM33°1%13 km/h
- 12 PM35°6%12 km/h
- 1 PM36°16%11 km/h
- 2 PM36°30%12 km/h
- 3 PM30°45%12 km/h
- 4 PM27°64%13 km/h
- 5 PM27°83%15 km/h
- 6 PM28°88%13 km/h
- 7 PM26°66%11 km/h
- 8 PM26°31%13 km/h
- 9 PM26°4%14 km/h
- 10 PM26°0%14 km/h
- 11 PM25°0%13 km/h
- 12 AM25°0%12 km/h
- 1 AM25°0%12 km/h
- 2 AM26°0%11 km/h
- 3 AM25°0%12 km/h
- 4 AM25°0%13 km/h
- 5 AM25°0%13 km/h
- 6 AM25°0%13 km/h
- 7 AM27°0%14 km/h
- 8 AM28°0%19 km/h
- 9 AM30°0%18 km/h
- 10 AM32°1%17 km/h
- 11 AM33°1%18 km/h
- 12 PM35°2%18 km/h
- 1 PM36°2%17 km/h
- 2 PM36°2%17 km/h
- 3 PM36°2%16 km/h
- 4 PM35°2%14 km/h
- 5 PM34°2%11 km/h
- 6 PM32°2%9 km/h
- 7 PM30°1%9 km/h
- 8 PM29°1%10 km/h
- 9 PM28°0%13 km/h
- 10 PM28°0%13 km/h
- 11 PM27°0%12 km/h
In depth
The weather picture for Umán opens with clear sky; it's 26 °C out, feeling like 31 °C. Today's forecast calls for thunderstorm with slight hail, topping out near 36 °C before falling back to 25 °C overnight. Winds blow mainly from the ESE around 15 km/h, with gusts up to 37 km/h. Daytime highs hold fairly steady this week, staying within 34 to 36 °C. Rain is in the picture on today, Thursday, Friday and beyond, with roughly 13 mm expected in total across the week. Tomorrow brings overcast with a high of 36 °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 05:18 and sunset at 18:42, giving 13.4 hours of daylight. Current humidity sits at 83% with pressure near 1014 hPa. Looking further out, Thursday shows thunderstorm with a high around 34 °C, while Saturday ends the week at 34 °C.
Sun & UV
- Sunrise
- 5:18 AM
- Sunset
- 6:42 PM
- Daylight
- 13h 24m
- Max UV
- 8.8 Very high
Wind
- Wind
- 9 km/h
- Gusts
- 23 km/h
- Direction
- SE (124°)
Farming weather
Soil temperatures today read surface 25 °C, 6 cm 28 °C, 18 cm 30.2 °C, 54 cm 29.7 °C. Soil moisture sits at 0-1 cm at 0.21 m³/m³, 3-9 cm at 0.21 m³/m³, 27-81 cm at 0.25 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 39 mm against only 13 mm of expected rain — a 26 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 36 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 36 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 178, maize 140.
- Topsoil moisture
- 0.149 m³/m³
- Soil temp
- 26°C
- ET₀ today
- 5.57 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 13.4 mm
- Wind
- 9 km/h
- Humidity
- 83%
Advisory summary
Weather alerts for Umán (derived from forecast data, not official warnings): Extreme heat today: feels-like temperatures up to 41 °C. Extreme heat Friday: feels-like temperatures up to 40 °C.
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All data for Umán
| Variable | Value |
|---|---|
| City | Umán, Yucatán, Mexico |
| Coordinates | 20.88149, -89.74798 |
| Elevation | 15 m |
| Timezone | America/Merida |
| Population | 39,611 |
| Observed at (local) | 7:00 AM |
| Temperature (2 m) | 27°C |
| Apparent temperature | 31°C |
| Relative humidity (2 m) | 83% |
| Dew point (2 m) | 23°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 0 |
| Cloud cover | 3% |
| Surface pressure | 1013 hPa |
| Sea-level pressure | 1014 hPa |
| Wind speed (10 m) | 9 km/h |
| Wind gusts (10 m) | 23 km/h |
| Wind direction (10 m) | 124° (SE) |
| Visibility | 29 km |
| UV index | 1.05 |
| Day / night | Day |
| Today max / min | 36°C / 25°C |
| Today feels-like max / min | 41°C / 28°C |
| Today precipitation sum | 4 mm |
| Today rain sum | 1.7 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 88% |
| Today max wind / gusts | 15 km/h / 37 km/h |
| Dominant wind direction | 120° (ESE) |
| Sunrise / sunset | 5:18 AM / 6:42 PM |
| Daylight duration | 13h 24m |
| Sunshine duration | 11h 30m |
| Max UV index | 8.8 |
| Reference evapotranspiration (ET₀) | 5.57 mm |
| Topsoil moisture (0–1 cm) | 0.149 m³/m³ |
| Surface soil temperature | 26°C |
| US AQI | 37 |
| European AQI | 18 |
| PM2.5 | 8.1 µg/m³ |
| PM10 | 12.2 µg/m³ |
| Ozone (O₃) | 41 µg/m³ |
| Nitrogen dioxide (NO₂) | 1.4 µg/m³ |
| Sulphur dioxide (SO₂) | 1.5 µg/m³ |
| Carbon monoxide (CO) | 111 µg/m³ |
| Dust | 2 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/mx/yucatan/uman" width="320" height="180" frameborder="0" title="Umán weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Umán tomorrow?
Rain is unlikely in Umán tomorrow; the precipitation chance stays around 2%.
What is the temperature in Umán today?
Today Umán sees thunderstorm with slight hail with a high of 36 °C and a low of 25 °C.
How hot will it be in Umán tomorrow?
Tomorrow's high in Umán is forecast at 36 °C with overcast.
Is it windy in Umán today?
No, not especially; gusts only reach up to 37 km/h today.
What is the UV index in Umán today?
The UV index peaks at 9 today, which is very high.
What time is sunrise and sunset in Umán today?
The sun rises at 05:18 and sets at 18:42 local time.
Is the air quality in Umán good today?
Air quality is good right now, with a US AQI reading of 37.