When to look

When to see fireflies

Fireflies do not glow all year. These curves are built from the dated records on this map, grouped by country, so you can see which months people have actually found them in near you.

1,111 dated records across 15 countries.

Fireflies in Singapore

When they have been seen

Sightings by month, from 147 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
720121312861017131514

Most reported in February.

This shows when 147 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Singapore, Bishan, Central Water Catchment, Bukit Panjang, Thomson Nature Park, Windsor Nature Park

Fireflies in Venezuela

When they have been seen

Sightings by month, from 136 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
429141025142783155

Most reported in August.

This shows when 136 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Carabobo, Miranda, Cumaná, Departamento de Química Facyt, Mérida, Alto Prado, San Cristóbal, Trujillo

Fireflies in Dominican Republic

When they have been seen

Sightings by month, from 101 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
542624269503710

Most reported in June.

This shows when 101 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Constanza, La Española, Jardin Botanico, Pedernales, Oviedo, Duverge, Bonao

Fireflies in Vietnam

When they have been seen

Sightings by month, from 99 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
141541340381163

Most reported in June.

This shows when 99 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Dak Lua, Dong Nai, Cúc Phương, Tân Phú, Trân Châu, Tân Phú District, Cat Tien national park, Nho Quan

Fireflies in Trinidad and Tobago

When they have been seen

Sightings by month, from 97 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
5114438211154318

Most reported in July.

This shows when 97 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Tobago, Trinidad, Tunapuna/Piarco Regional Corporation, Trinidad and Tobago, St Joseph, Diego Martin Regional Corporation, Parlatuvier

Fireflies in Honduras

When they have been seen

Sightings by month, from 92 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
0138928810101410

Most reported in June.

This shows when 92 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: San Antonio de Oriente, El Zamorano, Zamorano, Tela, Danlí, Santa Cruz de Yojoa, Dulce Nombre de Culmí, San Pedro Sula

Fireflies in Nicaragua

When they have been seen

Sightings by month, from 90 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
211454727142716

Most reported in November.

This shows when 90 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Rancho Grande, La Libertad, Risco de Oro, San Juan Del Sur, Managua, Jinotega, La Cebollal

Fireflies in Guatemala

When they have been seen

Sightings by month, from 73 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
121818713135221

Most reported in May.

This shows when 73 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Guatemala City, Cobán, Flores, Cdad. de Guatemala, El Remate, Santa Catarina Pinula, Ciudad de Guatemala

Fireflies in Malaysia

When they have been seen

Sightings by month, from 67 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
51838510941121

Most reported in February.

This shows when 67 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Bukit Fraser, Bukit Kiara, Kuala Lumpur, Fraser's Hill, Bukit Kiara Federal Park, Raub, Keningau, Kinabalu Park

Fireflies in United States

When they have been seen

Sightings by month, from 60 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
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Most reported in August.

This shows when 60 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: New York, Philadelphia, Chapel Hill, Brown Deer, Durham, North Carolina, Louisville, Sperryville

Fireflies in Indonesia

When they have been seen

Sightings by month, from 49 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
52132104040009

Most reported in March.

This shows when 49 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Candikuning, Taro, Sebatu, Ubud, Belok/Sidan, Munduk, Pancasari, Ciburial

Fireflies in Ecuador

When they have been seen

Sightings by month, from 38 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
1061443500032

Most reported in January.

This shows when 38 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Quito, San Miguel de los Bancos, Distrito Metropolitano de Quito, Quijos, Los Bancos Canton

Fireflies in Kenya

When they have been seen

Sightings by month, from 28 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
353303530030

Most reported in February and July.

This shows when 28 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Nairobi, Wasini, Mara, Narok

Fireflies in Nepal

When they have been seen

Sightings by month, from 17 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
0000131110010

Most reported in July.

This shows when 17 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Rapti, Bagmati

Fireflies in Philippines

When they have been seen

Sightings by month, from 17 dated records.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
200231050301

Most reported in August.

This shows when 17 records were made, not when fireflies fly. A place people only visit in one season looks seasonal for that reason alone — so treat a thin month as “nobody looked” rather than “nothing there”.

Places recorded: Kiangan, Mount Makiling

Why there is no world chart

The northern and southern halves of the year are opposites: June is midsummer in one and midwinter in the other, so adding every country together would flatten the answer into something that looks smooth and means nothing. A country is the widest grouping that still tells you something true.

Browse every place →