GFAll French Guiana eSIM plans compared
| プロバイダー | 価格（5GB） | 通信範囲 | 評価 | こんな方におすすめ |
|---|---|---|---|---|
| HelloRoam | ￥2,050 | Orange | 4.9/5 | 総合最高 |
| Airalo | ￥2,432 | 200カ国以上 | 4.5/5 | 最多渡航先 |
| Holafly | 無制限 | 160カ国 | 4.2/5 | ヘビーユーザー |
French Guianaのおすすめトップ3
French Guianaで利用可能な5件のeSIMプランを評価し、確認済み価格・ネットワーク通信範囲・開通速度・アプリ品質を比較しました。 その中から5件が際立っていました。
メリット： 1GBあたりの価格が最安値、高速開通、OrangeでのFrench Guiana通信カバレッジ。 デメリット： 比較的新しいブランドで、Airaloよりコミュニティが小さい。
| ティア | 期間 | 割引 | 開始価格 |
|---|---|---|---|
| ショートステイ | 1-2日 | 4%オフ | $6.70$3.35/日 · 2d |
| ウィークパッケージ | 3-9日 | 8%オフ | $22.48$3.21/日 · 7d |
| 延長ステイ | 10-19日 | 11%オフ | $31.06$3.11/日 · 10d |
| マンスリーパッケージ | 20-29日 | 15%オフ | $59.33$2.97/日 · 20d |
| 長期滞在最もお得 | 30-365日 | 18%オフ | $85.85$2.86/日 · 30d |
メリット： 200カ国以上対応、チャージ可能、最大のコミュニティ。 デメリット： 一部ルートでは新興プロバイダーより割高で、サポートの応答時間にムラがある。
メリット： 真の無制限データ、速度制限なし、24時間365日ライブチャットサポート。 デメリット： プレミアム価格で、1GBあたりの選択肢なし。
Network coverage in French Guiana
Orange is the dominant carrier in French Guiana, providing 4G LTE along the coastal strip where 95% of the population lives. Digicel operates primarily in the Caribbean islands and has limited presence here. Orange's French territory infrastructure delivers reliable speeds in Cayenne, Kourou, and Saint-Laurent-du-Maroni.
No other carrier offers eSIM-compatible service for international visitors. Orange is the go-to choice.
通信範囲の分析
Orange 4G LTE covers the N1 coastal highway from Saint-Laurent-du-Maroni to Saint-Georges-de-l'Oyapock. Cayenne Félix Eboué Airport connects on arrival. The Guiana Space Centre in Kourou has full 4G coverage.
Inland waterways toward the Amazonian interior lose signal within 30-50 km of the coast. The territory is 90% rainforest with no mobile infrastructure. Travelers doing river tours into the Amazon should treat connectivity as unavailable once away from the coast.
開通方法
Install your eSIM QR code before flying into Cayenne Félix Eboué Airport (CAY). Orange registers your eSIM within minutes of landing. No SIM card queue required.
French Guiana uses +594 country code and is in the UTC-3 time zone. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer support eSIM. Your device must be carrier-unlocked. European visitors using French Orange plans may find their plan already covers French Guiana as an overseas territory.
データ通信の活用のコツ
Budget 350-450 MB per day for maps, messaging, and travel logistics in Cayenne and Kourou. Download offline maps for coastal areas and note that the interior Amazon region has zero connectivity. Space Centre visitor programs involve guided tours; check the Arianespace website on Wi-Fi before your visit.
A 7-day plan covers a typical Guiana itinerary with visits to Cayenne, Kourou, and the coastal mangroves. Avoid relying on data for navigation once heading inland.
French Guianaのプラン評価方法
French Guiana is among South America's most affordable eSIM destinations. Fixed-data plans start at $1.57 for 7 days on Orange 4G. Unlimited plans cost $1.75 per day, $5.02 for 3 days, $11.72 for 7 days, $22.68 for 14 days, or $44.77 for 30 days.
The 14-day unlimited plan at $22.68 covers most travel itineraries including multi-week research or space-launch trips at an excellent per-day rate.
Best eSIM plans for French Guiana in 2026
| プラン | ネットワーク | 有効期限 | 価格 |
|---|---|---|---|
| French Guiana Unlimited 1Day ⭐ | Orange | 1d / 0GB | ￥266 |
| French Guiana Unlimited 3Day | Orange | 3d / 0GB | ￥763 |
| French Guiana Unlimited 7Day | Orange | 7d / 0GB | ￥1,781 |
| French Guiana Unlimited 14Day | Orange | 14d / 0GB | ￥3,447 |
| French Guiana Unlimited 30Day | Orange | 30d / 0GB | ￥6,805 |
Prices verified: May 2026
Questions about French Guiana eSIMs
What is the best eSIM for French Guiana?+
How much does an eSIM for French Guiana cost?+
Which network does an eSIM use in French Guiana?+
Is there mobile data in the Amazon rainforest in French Guiana?+
Can I use my eSIM at the Guiana Space Centre in Kourou?+
Does my phone need to be unlocked for a French Guiana eSIM?+
How much data do I need for a week in French Guiana?+
Is French Guiana a separate eSIM destination from France?+
プロバイダーレビュー
French Guianaで利用可能なトップeSIMプロバイダーの詳細レビューをご覧ください。
