Flores weather in September

September in Flores: sweltering, soaked, with clean air — a gamble, with 25 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Flores🇬🇹 Guatemala · Northern Central America · City53
  1. 80Jan
  2. 81Feb
  3. 75Mar
  4. 62Apr
  5. 49May
  6. 52Jun
  7. 65Jul
  8. 58Aug
  9. 53Sep
  10. 60Oct
  11. 70Nov
  12. 77Dec

#10 of 12 months in Flores · #1230 of 1413 destinations to visit in September · comfort 53/100 (tier D)

Days
33°C
Nights
23°C
Wet days
25
Sun
9.8 h
Humidity
84%
Daylight
12 h
Flores, Guatemala
Photo: Juan Francisco · CC BY-SA 2.0

Traveller notes on Flores in September

Notes from nearby Tikal (45 km away)

Flores doesn't have its own notes for September yet — these are about Tikal, close enough to share the season.

Tikal-forum threads on September confirm this sits within the wettest stretch of the year, though posters say most heavier weather lands at night, leaving daylight hours more workable than the reputation suggests. Regulars call humidity a bigger factor than any single downpour, conditions staying genuinely hot and sticky either way. Posters recommend real rain gear regardless of forecast, brief but intense bursts arriving with little warning through the canopy. Regulars describe September crowds as noticeably thinner than the peak season, a real upside for anyone willing to accept mud between temples. Posters call the jungle noticeably greener and wildlife more active this time of year, a genuine tradeoff against the weather risk. Regulars recommend an early start regardless of month, heat and humidity both building fast once the sun is up. The record: 31.8C days feeling like a punishing 37C, 23.5C nights, an extraordinarily high 150mm across over 22 days and 81 percent humidity.
TikalSeptemberRegular · September · 1 month ago · about Tikal · Read more on Tripadvisor ↗

Other months in Flores

Guatemala's forum flags July for a real local phenomenon: 'la canícula,' a lull in the rainy season that locals recognize, making early-to-mid July noticeably less wet than the mid-July-through-August stretch that follows. Posters visiting Flores and nearby Tikal described the heat and humidity as intense but manageable for walking the ruins, with one traveler recalling four or five genuinely rainy afternoons across a longer stay and good weather the rest of the time. Everything stays lush and green throughout, which several people considered a fair trade for the humidity.
PetenRegionRegular · July · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe the shoulder season around Flores as cool in the mornings and evenings, down into the 50sF, warming to a comfortable 75-80F during the day - conditions posters expect to hold similarly through January as part of Guatemala's dry season. Posters are direct that being high season, January brings real crowds and noticeably higher hotel rates, in one case as much as 50% above earlier-booking prices. Posters describe Flores itself as a charming, easily walkable island town, typically visited as a base for Tikal, about a 90-minute drive away. Posters generally rate January as a comfortable, reliably dry time to visit, with cost and crowding rather than weather the main planning trade-off.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗

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

Flores climate normals — September

Daytime high33°C / 92°F🔥 sweltering
Nighttime low23°C / 73°F
Feels like (high)40°C / 104°F
Rainfall232 mm / 9.1 in⛈ soaked
Rainy days25 days
Humidity84%💦 very humid
Dew point24°C / 75°F
Sunshine9.8 h/day
Daylight12.2 h
Wind9 km/h / 6 mph
Air quality (US AQI)30🍃 good

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

Crowds in Flores 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.

BusyIndependence Day, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Flores'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).

Toughest weatherFlores's weather peaks December–February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Flores in September

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

  • Rule

    Tikal sunrise entry

    1 Jan – 31 DecBook early

    The park gates open at six, but a separate sunrise ticket lets you in from four so you can be on Temple IV for first light. It is bought on top of the day entry and the vans leave Flores at about three. Source ↗

  • Holiday

    Independence Day

    14–15 SepNational holidayClosuresCrowded

    Torch runners come in along the highway on the evening of the fourteenth and the island's ring road belongs to school bands the next morning. Offices and banks close on the fifteenth. Source ↗

  • Season

    Wet season

    MonsoonRisk

    25 rainy days and about 232 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in September →

Nearby, and something's on

Within 300 km of Flores — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Flores?

Loading map…

Flores in September — FAQ

Is September a good time to visit Flores?
September in Flores: sweltering, soaked, with clean air — a gamble, with 25 rainy days. It ranks #10 of 12 months for Flores on SeasonMap's comfort score (53/100).
What is the weather like in Flores in September?
In September, Flores averages a daily high of 33.4°C and a low of 22.9°C, with about 231.7 mm of rain over roughly 25 rainy days.
What is the air quality in Flores in September?
Flores has a mean US Air Quality Index of about 30 in September.

Within 300 km: Caye Caulker's Lobster season opens on 15 Jun – 14 Feb, and Antigua Guatemala's Independence Day on 14–15 Sep.