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Grand-Santi weather

Guyane · 9,390 inhabitants · Friday, November 6 · updated 15:40

Air: Good Heatwave risk · 8 d Low storm risk · Sun

35°

Clear sky

Feels like 42°C

Wind

10 km/h

Gusts

18 km/h

Humidity

39 %

Pressure

1009 hPa

Clouds

0 %

Storm

Rise 06:22 Set 18:19 Day 11 h 57 min UV 11 · Very high

Grand-Santi 14-day forecast

Trend

Afternoon

Clear sky

36°35°

Feels like 40°

Wind ↑ ESE 10 km/h

Gusts 20 km/h

Humidity 29 %

Evening

Clear sky

35°28°

Feels like 36°

Wind ↑ ENE 8 km/h

Gusts 40 km/h

Humidity 24 %

15:00

35°

ESE 10

18:00

35°

E 6

Rain radar around Grand-Santi

Rain observed over the last two hours by official weather radars around Grand-Santi, followed by the radar forecast for the next hour where the weather service provides one.

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Rain radar Last two hours, then forecast where available · drag the timeline

Air you breathe in Grand-Santi: pollution and pollen

1/6

Good

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.59µg/m³

PM109µg/m³

Copernicus CAMS model, updated several times a day.

Grand-Santi forecast in charts · next 7 days

The week ahead: highs and lows

▲ This week runs +2.1° warmer than usual

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Moon over Grand-Santi

Waning crescent

12 % illuminated · 26.3 days

Rise 04:05 Set 16:21

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Wed 11/11 3%

Thu 12/11 8%

Fri 13/11 15%

Sat 14/11 23%

Sun 15/11 33%

Mon 16/11 43%

Tue 17/11 54% First quarter

Wed 18/11 64%

Moonrise and moonset in local time (America/Cayenne); phase and lit fraction from a synodic calculation.

Look up a past day in Grand-Santi

Curious about the weather in Grand-Santi on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Grand-Santi weather at a glance

This page gathers everything about the weather in Grand-Santi, Guyane: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is 35 °C (feels like 42 °C) and the wind blows at 10 km/h.

Expected range today: 20 °C to 36 °C and a dry sky; keep an eye on thunderstorms; it will be very hot. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Other big cities nearby

Saint-Laurent-du-Maroni 86 km 36°

Cayenne 239 km 28°

Grand-Santi weather data for developers

Use the Grand-Santi forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

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Where does this forecast come from? Our engine, checked every day against 1124 weather stations