Georgetown weather in September

September in Georgetown: sweltering, rainy, with clean air — fine if you can take 19 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Georgetown🇬🇾 Guyana · Guianas & Northern Brazil · City67
  1. 66Jan
  2. 69Feb
  3. 68Mar
  4. 61Apr
  5. 47May
  6. 48Jun
  7. 55Jul
  8. 63Aug
  9. 67Sep
  10. 65Oct
  11. 58Nov
  12. 54Dec

#3 of 12 months in Georgetown · #1000 of 1413 destinations to visit in September · comfort 67/100 (tier C)

Days
32°C
Nights
26°C
Wet days
19
Sun
11 h
Humidity
81%
Daylight
12 h
Georgetown, Guyana
Photo: David Stanley · CC BY 2.0

Traveller notes on Georgetown in September

Forum posters consistently name September as Guyana's driest month, even drier than October, and likely the hottest of the year, describing the August-through-November stretch as the drier of the country's two dry seasons. Posters are direct that rain and humidity remain a real presence regardless - Guyana's weather has always been genuinely unpredictable, and posters note it can rain at any time of year even within a nominal dry season. Posters generally describe conditions as hot and humid with frequent rain showers as the baseline, with September simply representing a relative low point in rainfall rather than a guarantee of dry days. Posters generally rate September as one of the better months to visit Georgetown specifically, heat and humidity notwithstanding.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗

Other months in Georgetown

Forum posters describe Georgetown's air as generally hot and humid with rain a frequent occurrence, a pattern that applies broadly across the seasons here given Guyana's equatorial coastal position. Given how few detailed month-specific weather discussions exist for Georgetown, posters' practical advice tends to center more on safety, logistics and things to do than granular climate detail - reflecting how few independent trip reports exist for this destination outside of broader Guyana-country travel planning. Posters generally recommend treating a March visit like any other month here: expect real humidity and a genuine chance of rain on any given day, rather than assuming a distinct dry season the way many other tropical destinations have.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Georgetown's card on the map.

Georgetown climate normals — September

Daytime high32°C / 89°F🔥 sweltering
Nighttime low26°C / 78°F
Feels like (high)38°C / 100°F
Sea temperature31°C / 87°F♨️ bath-warm
Rainfall97 mm / 3.8 in🌧 rainy
Rainy days19 days
Humidity81%💦 very humid
Dew point25°C / 76°F
Sunshine11 h/day
Daylight12.2 h
Wind15 km/h / 10 mph
Air quality (US AQI)42🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Georgetown in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Georgetown's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherGeorgetown's best weather comes in February, March and September — separate windows, not one continuous season.

September includes Amerindian Heritage Month.

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Best weatherFair weatherToughest weather

What's on in Georgetown in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Festival

    Amerindian Heritage Month

    1–30 SepMajor festival

    September honours Guyana's nine Indigenous nations. It opens at the Umana Yana benab in Kingston with dance, cassava bread and craft stalls, and Georgetown hosts markets and exhibitions through the month. Source ↗

What's on around the world in September →

Where is Georgetown?

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Georgetown in September — FAQ

Is September a good time to visit Georgetown?
September in Georgetown: sweltering, rainy, with clean air — fine if you can take 19 rainy days. It ranks #3 of 12 months for Georgetown on SeasonMap's comfort score (67/100).
What is the weather like in Georgetown in September?
In September, Georgetown averages a daily high of 31.5°C and a low of 25.5°C, with about 97.1 mm of rain over roughly 18.5 rainy days.
What is the air quality in Georgetown in September?
Georgetown has a mean US Air Quality Index of about 42 in September.