Will it rain today in Santiago?
Should you take an umbrella in Santiago? The forecast below loads live every time you open the page: rain now, when the next shower comes, and how much falls today and tomorrow.
Rain right now
Dry in Santiago for now; rain expected from about 15:00. Today’s total: 0.8 mm over 3 wet hours. Tomorrow looks dry.
As of 2026-10-16 17:35 UTC (NOAA GFS snapshot). Updating live…
Rain every 3 hours, today and tomorrow
Today · Friday 16 October
0.8 mm of rain, 3 wet hours, up to 0.1 mm/h. (the forecast covers part of the day)
Every 3 hours as a table
| Hours | Rain (mm) | mm/h | Type |
|---|---|---|---|
| 06:00–09:00 | 0 | 0 | dry |
| 09:00–12:00 | 0.1 | 0 | dry |
| 12:00–15:00 | 0.2 | 0.1 | dry |
| 15:00–18:00 | 0.4 | 0.1 | light · rain |
| 18:00–21:00 | 0.1 | 0 | dry |
| 21:00–00:00 | 0 | 0 | dry |
Tomorrow · Saturday 17 October
Dry: no rain in the forecast.
Every 3 hours as a table
| Hours | Rain (mm) | mm/h | Type |
|---|---|---|---|
| 00:00–03:00 | 0 | 0 | dry |
| 03:00–06:00 | 0 | 0 | dry |
| 06:00–09:00 | 0 | 0 | dry |
| 09:00–12:00 | 0 | 0 | dry |
| 12:00–15:00 | 0.1 | 0 | dry |
| 15:00–18:00 | 0.3 | 0.1 | dry |
| 18:00–21:00 | 0 | 0 | dry |
| 21:00–00:00 | 0 | 0 | dry |
Times in local time (America/Santiago). Each bar is the rain over 3 hours; striped bars are snow.
Rain map around Santiago
The same NOAA GFS precipitation on the map, moving hour by hour: blue light, darker heavy. Tap for the value.
How much it rains in Santiago, month by month
Santiago gets about 275 mm of rain a year. The wettest month is June (63 mm), the driest December (7 mm); a normal October brings 12 mm.
Average monthly rain and snow (water equivalent) 2001–2025, NASA POWER (MERRA-2 reanalysis, public domain), on a ~50 km grid: mountains and coasts can differ locally.
More for Santiago
Weather in Santiago now · Rain totals map · Thunderstorms · Cloud map
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Questions
- Will it rain today in Santiago?
- At 16 October 2026 the forecast said: Dry in Santiago for now; rain expected from about 15:00. Today’s total: 0.8 mm over 3 wet hours. Tomorrow looks dry. The box at the top of the page loads the latest NOAA GFS forecast every time you open it, with the time the next rain starts.
- How much does it rain in Santiago?
- About 275 mm a year on average (2001–2025). June is the wettest month with 63 mm, December the driest with 7 mm.
- What do the rain amounts mean?
- 1 mm is a litre of water per square metre. Under 2.5 mm an hour is light rain (a drizzle to a steady rain), 2.5–7.6 moderate, above 7.6 heavy: you get soaked in minutes and streets can flood.
- How accurate is the forecast?
- It is the global NOAA GFS model on a 0.25° grid every 3 hours: good at telling a rainy day from a dry one, less at placing a single summer thunderstorm. Check the rain map for the showers moving around Santiago.
Rain forecast nearby
Viña del Mar · Valparaíso · Mendoza · La Serena · Córdoba · San Carlos de Bariloche
How this page works
The rain is the one the rain layer of the map paints: NOAA GFS forecast (public domain), precipitation rate averaged over 3 hours, read at Santiago and summed per local day. Rain or snow comes from the GFS precipitation type. The monthly normals are NASA POWER. No third-party weather service.