| Date, time | Wind Speed | Pressure | Latitude | Longitude | Movement | Status |
|---|---|---|---|---|---|---|
| 241 km/h | 933 mb | 17.4 | -104.8 | 2 km/h N | Category 4 Hurricane | |
| 241 km/h | 938 mb | 17.3 | -104.8 | 6 km/h N | Category 4 Hurricane | |
| 222 km/h | 945 mb | 17.0 | -104.6 | 7 km/h N | Category 4 Hurricane | |
| 176 km/h | 964 mb | 16.6 | -104.6 | 11 km/h N | Category 2 Hurricane | |
| 167 km/h | 966 mb | 16.0 | -104.7 | 3 km/h NW | Category 2 Hurricane | |
| 148 km/h | 976 mb | 15.9 | -104.5 | 4 km/h NW | Category 1 Hurricane | |
| 148 km/h | 978 mb | 15.7 | -104.4 | 5 km/h NW | Category 1 Hurricane | |
| 120 km/h | 985 mb | 15.7 | -104.3 | 8 km/h NW | Category 1 Hurricane | |
| 111 km/h | 992 mb | 15.6 | -103.7 | 11 km/h W | Tropical Storm | |
| 102 km/h | 995 mb | 15.4 | -103.1 | 7 km/h W | Tropical Storm | |
| 83 km/h | 1,000 mb | 15.4 | -102.8 | 13 km/h W | Tropical Storm | |
| 74 km/h | 1,002 mb | 15.5 | -102.2 | 17 km/h W | Tropical Storm | |
| 65 km/h | 1,004 mb | 15.3 | -101.3 | 15 km/h NW | Tropical Storm | |
| 56 km/h | 1,006 mb | 14.9 | -100.6 | 13 km/h NW | Tropical Depression | |
| 46 km/h | 1,006 mb | 14.5 | -100.0 | 15 km/h NW | Tropical Depression | |
| 46 km/h | 1,006 mb | 13.9 | -99.4 | 21 km/h NW | Tropical Depression | |
| 46 km/h | 1,007 mb | 13.0 | -98.7 | 10 km/h W | Tropical Depression | |
| 46 km/h | 1,008 mb | 12.8 | -98.2 | 10 km/h W | Tropical Depression | |
| 46 km/h | 1,009 mb | 12.6 | -97.7 | 13 km/h W | Tropical Depression | |
| 46 km/h | 1,009 mb | 12.4 | -97.0 | 11 km/h W | Tropical Depression | |
| 46 km/h | 1,009 mb | 12.4 | -96.4 | 11 km/h W | Tropical Depression | |
| 46 km/h | 1,009 mb | 12.2 | -95.8 | 17 km/h W | Tropical Depression | |
| 28 km/h | 12.0 | -94.9 | 20 km/h W | Tropical Depression | ||
| 28 km/h | 12.0 | -93.8 | 22 km/h W | Tropical Depression | ||
| 28 km/h | 11.9 | -92.6 | 20 km/h W | Tropical Depression | ||
| 28 km/h | 11.8 | -91.5 | 0 km/h N | Tropical Depression |
Hurricane Simon is 197 km south-south-west of Manzanillo, Colima, Mexico, moving north at 2 km/h. The latest reading, at 2026-10-10 18:00 UTC, records sustained winds of 241 km/h, gusts of 277 km/h and a pressure of 933 mb. Simon remains a category 4 hurricane, with sustained winds and gusts unchanged from the previous reading six hours earlier; pressure has fallen from 938 mb. The reported distance is from the storm’s centre, not a measure of conditions in Manzanillo. RainViewer’s readings show Simon’s track from a tropical depression on 4 October through its strengthening to category 4 on 10 October.
No active watches or warnings.
4 October — Forms as a tropical depression
The first reading places Simon at 11.8°N, 91.5°W, 355 km southeast of Tapachula, Chiapas, Mexico. Simon has 28 km/h winds, 32 km/h gusts and is stationary in that reading. The next reading shows westward movement at 20 km/h.
5 October — Winds increase to 46 km/h
Simon reaches winds of 46 km/h and gusts of 53 km/h by 12:00 UTC. The first recorded pressure is 1,009 mb. Simon continues westwards, with movement ranging from 17 km/h to 22 km/h in the day's readings.
6 October — Pressure begins to fall
Simon remains a tropical depression with winds of 46 km/h and gusts of 53 km/h. Pressure falls from 1,009 mb to 1,007 mb during the day. Simon is south of Brisas de Zicatela, Oaxaca, Mexico, and the direction of movement shifts from westwards to west-northwestwards.
7 October — Strengthens into a tropical storm
Simon reaches tropical-storm strength at 18:00 UTC, with winds of 65 km/h and gusts of 75 km/h. Pressure is 1,004 mb. The latest position is 228 km southwest of Acapulco, Guerrero, Mexico, with Simon moving northwest at 15 km/h.
9 October — Strengthens into a category 1 hurricane
At 00:00 UTC on 9 October, Simon reached category 1 hurricane strength, with winds of 120 km/h and gusts of 138 km/h. The reading recorded pressure of 985 mb, down from 992 mb six hours earlier, when Simon was a tropical storm with 111 km/h winds.
9 October — Strengthens into a category 2 hurricane
At 18:00 UTC, Simon's wind speed rose to 167 km/h from 148 km/h in the previous reading, and pressure fell to 966 mb from 976 mb. The reading classified Simon as a category 2 hurricane, 349 km south of Manzanillo, Colima, Mexico.
10 October — Strengthens into a category 4 hurricane
At 06:00 UTC on 10 October, Simon's sustained winds reached 222 km/h, up from 176 km/h 6 hours earlier, and central pressure fell from 964 mb to 945 mb. The reading classified Simon as a category 4 hurricane, after the previous category 2 reading.
The readings show a clear strengthening sequence. Simon's wind rises from 28 km/h at formation to 46 km/h, then 56 km/h and 65 km/h in the final three readings. Central pressure, a measure of the air pressure at the storm's centre, falls from 1,009 mb to 1,004 mb across the available pressure readings. The wind increase and pressure decrease occur together as Simon changes from a tropical depression to a tropical storm.
Simon initially moves westwards, at speeds from 11 km/h to 22 km/h after the stationary first reading. The track then turns towards the northwest: the latest directions are 323°, 316°, 305° and 301°, with speeds of 21 km/h, 15 km/h, 13 km/h and 15 km/h. The readings support a steady change in direction and continued strengthening, but they do not provide the environmental measurements needed to explain why.
Turn on RainViewer's tropical storm tracks layer to see Simon's recorded path and latest position. Each track point shows Simon's classification at that moment: cyan marks a tropical depression, blue marks a tropical storm, yellow marks category 1, amber marks category 2, orange marks category 3, red marks category 4 and dark red marks category 5. Simon's track changes from cyan points to a blue point at the latest reading.
Use the latest point to check Simon's position relative to Acapulco, where the storm was 228 km southwest at 18:00 UTC on 7 October. The track also shows the earlier westward movement and the later turn towards the northwest. Open RainViewer on Google Play or the App Store to follow Simon's recorded track as new readings become available.
Tropical cyclones receive names so that people and weather services can distinguish one storm from another in the same basin and season. The available readings identify this storm as Simon but do not include the naming decision or the organisation responsible for it.
Wind speed is the storm's maximum sustained wind value in the reading, while gust speed is the stronger, shorter-lived wind value recorded alongside it. Simon's latest reading lists winds of 65 km/h and gusts of 75 km/h.
Simon began at 11.8°N, 91.5°W on 4 October and was at 15.3°N, 101.3°W on 7 October. The readings show a generally westward track followed by a northwestward turn, but they do not provide a single total-distance figure.
The 1,004 mb value is Simon's central pressure, measured in millibars. It is lower than the 1,009 mb pressure first recorded on 5 October, while Simon's recorded wind speed increased from 46 km/h to 65 km/h over the same series.