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TRAVEL BY SEASON · SEPTEMBER

Where to travel in September for your ideal weather

Find places that fit your temperatures, then explore what makes them worth a trip. Based on historical climate, not forecasts.

Explore September worldwide ↗

September picks for your weather

Six matches from 201 curated destinations, with variety among similar scores.

Adjust to your ideal weather
Preferred daytime highs 68°F–81°F

Daytime highs only—not nighttime lows.

Nights below your minimum reduce the score. Individual nights can be colder.

Default weather fit · 6 picks updated · Daytime highs 68°F / 20°C–81°F / 27°C · No overnight minimum

September 1–30 · Historical averages

Swakopmund

Namibia

100/100Weather fit

Average highs within your range, with low average rainfall.

A coastal base for exploring Namibia’s Atlantic shore and nearby desert.

Avg high
70°F / 21°C
Avg low
53°F / 11°C
September rainfall
0.0 inches
Explore weather ↗

Amman

Jordan

100/100Weather fit

Average highs within your range, with low average rainfall.

Jordan’s hilly capital, with the Citadel above the city.

Avg high
80°F / 27°C
Avg low
55°F / 13°C
September rainfall
0.0 inches
Explore weather ↗

San Diego

United States

100/100Weather fit

Average highs within your range, with low average rainfall.

Gardens, museums and a little wandering

Avg high
79°F / 26°C
Avg low
64°F / 18°C
September rainfall
0.1 inches
Explore weather ↗
99/100Weather fit

Average highs within your range, with low average rainfall.

A Gran Canaria city break combining Vegueta and Las Canteras beach.

Avg high
80°F / 27°C
Avg low
68°F / 20°C
September rainfall
0.3 inches
Explore weather ↗

Essaouira

Morocco

99/100Weather fit

Average highs within your range, with low average rainfall.

Ramparts beside the Atlantic

Avg high
75°F / 24°C
Avg low
63°F / 17°C
September rainfall
0.3 inches
Explore weather ↗

Closest matches among our curated places, even when none fits perfectly. Rainfall is a monthly amount, not a count of rainy days. Open the map to compare exact dates.

How the weather-fit scores work

Default weather fit out of 100, using preferred daytime highs of 68–81°F (20–27°C), less rainfall, and no overnight minimum. Temperature contributes 65% of the starting score and rainfall 35%; severe mismatches reduce it further. An overnight minimum also reduces scores where nights are too cold. Adjust your preferences above to make the score yours; your preferences follow you to the map.

Estimates cover September 1–30 using 1991–2020 historical climate averages. Exact trip dates can produce different results. High scores do not promise sunshine.

More September inspiration

San Diego and Mendoza lead this September comparison of relatively dry options. Nairobi, Funchal, Lisbon and Denver add useful rainfall and overnight tradeoffs. These stories stay here as your personalized picks above change. Photos illustrate the destinations, not expected September conditions.

Botanical Building and lily pond in San Diego’s Balboa Park.
Photo: MARELBU · CC BY 3.0 · resized/cropped

01 · United States

San Diego

Gardens, museums and a little wandering

Make Balboa Park your starting point: museums, gardens and architecture give you plenty of reasons to slow down and explore.

Why September? September brings warmer daytime averages than March. Typical daily rainfall is lower.

September averages: 79°F high · 64°F low, with 0.1 inches of rainfall over the month. For comparison, the average high in March is 68°F.

Tradeoff: Low rainfall does not promise sunshine. Cloud, wind and water temperature are outside this score.

See San Diego for your dates ↗
Fountain and trees in Plaza Independencia, Mendoza
Photo: Miguel · CC BY-SA 2.0 · resized/cropped

02 · Argentina

Mendoza

Wine country beside the Andes

Make Mendoza a starting point for exploring Argentina’s wine country. Leave room to plan winery visits as part of the trip, rather than judging the region only by its city weather score.

Why September? September offers cooler daytime averages than March. Typical daily rainfall is lower.

September averages: 70°F high · 45°F low, with 0.4 inches of rainfall over the month. For comparison, the average high in March is 80°F.

Tradeoff: Nights are chilly on average; add an overnight minimum if that would affect your trip. Low rainfall does not promise sunshine. Cloud, wind and water temperature are outside this score.

See Mendoza for your dates ↗
Nairobi skyline seen from the KICC rooftop
Photo: Lebu Ayiga · CC BY-SA 4.0 · resized/cropped

03 · Kenya

Nairobi

Time for Kenya’s cultural heritage

Include Nairobi National Museum in your visit to Kenya’s capital. Giving the city a cultural stop of its own can add another dimension to a trip that continues elsewhere in the country.

Why September? September offers cooler daytime averages than March. Typical daily rainfall is lower.

September averages: 77°F high · 53°F low, with 1.1 inches of rainfall over the month. For comparison, the average high in March is 80°F.

Tradeoff: Low rainfall does not promise sunshine. Cloud, wind and water temperature are outside this score.

See Nairobi for your dates ↗
Cliff Bay Hotel and Atlantic coast in Funchal, Madeira
Photo: uggboy · CC BY 2.0 · resized/cropped

04 · Portugal

Funchal

Gardens above an Atlantic bay

Funchal combines gardens, viewpoints and the Mercado dos Lavradores with an ocean-facing setting. Explore the city at its own pace before treating the rest of Madeira as a separate adventure.

Why September? September brings warmer daytime averages than March. Typical daily rainfall is lower.

September averages: 75°F high · 64°F low, with 1.3 inches of rainfall over the month. For comparison, the average high in March is 63°F.

Tradeoff: Some rainfall belongs in your plans. Monthly totals do not tell you whether rain falls in short showers or longer spells.

See Funchal for your dates ↗
Curving tram tracks between colorful facades in Lisbon’s Alfama.
Photo: Jorge Franganillo · CC BY 2.0 · resized/cropped

05 · Portugal

Lisbon

Hillside streets and river views

Follow Alfama’s winding streets, seek out a view of the Tagus, and make room for the neighborhood’s fado heritage. There is plenty to enjoy between the landmarks.

Why September? September brings warmer daytime averages than March. Typical daily rainfall is lower.

September averages: 79°F high · 63°F low, with 1.7 inches of rainfall over the month. For comparison, the average high in March is 66°F.

Tradeoff: Some rainfall belongs in your plans. Monthly totals do not tell you whether rain falls in short showers or longer spells.

See Lisbon for your dates ↗
Denver skyline and distant mountains seen across City Park Golf Course
Photo: David Herrera from Albuquerque, NM, Bernalillo · CC BY 2.0 · resized/cropped

06 · United States

Denver

A city break with art in reach

Start around Union Station and work some museum time into your Denver visit. The Museum of Contemporary Art offers one nearby option, giving you an indoor counterpoint to exploring the city outdoors.

Why September? September brings warmer daytime averages than March. Average rainfall amounts are similar across the two months.

September averages: 77°F high · 47°F low, with 1.2 inches of rainfall over the month. For comparison, the average high in March is 55°F.

Tradeoff: Nights are chilly on average; add an overnight minimum if that would affect your trip. Some rainfall belongs in your plans. Monthly totals do not tell you whether rain falls in short showers or longer spells.

See Denver for your dates ↗

Make it your September

Prefer cooler days? Need comfortable nights? Open a destination on the map and add places to your comparison. Each link opens the next upcoming September—or the current September if you are reading during that month—with your weather preferences carried over. You can then pick your exact dates.

Find your kind of September ↗

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How we choose these places

The six personalized picks come from 201 curated destinations, using the same weather-fit calculation as our map. Your preferred highs, rainfall amounts and optional overnight minimum shape the results. We include geographic variety among similar scores; these are matches to explore, not a ranking of every place in the world.

The six illustrated stories are editorial starting points chosen to show different September climates and travel experiences. They stay the same when you adjust your preferences. Booking commissions do not affect scores or selections. More about Seasonward and how we make our guides.

Where the numbers come from

Recommendations use the same climate sources as the map: a 0.5° CRU grid (approximately 55 km north–south), with local station data where available. The six inspiration destinations use the CRU grid. Monthly high, low and precipitation values are interpolated to each day, then averaged or totalled across September. The numbers describe typical regional conditions, rather than the weather at a particular hotel or trail.

Mountains, coasts and neighborhoods can differ substantially from their regional estimate. Historical averages are not extremes or predictions. Sunshine, humidity, wind and water temperature are not included. Small score differences should not decide a trip on their own.

Adapted data © Climatic Research Unit (University of East Anglia) and Met Office: CRU TS 4.09, under the Open Government Licence. Reference period: 1991–2020.

Local station sources: NOAA NCEI and GeoSphere Austria (CC BY 4.0).

Destination information & photo credits

Destination descriptions draw on tourism boards, heritage organizations and attraction websites. Sources below also cover places that may appear when you adjust your preferences. Photographs illustrate the places, not the conditions to expect for your dates. Each image is linked to its source and license above; resized or cropped versions retain that license.