By Cliff Potts, CSO, and Editor-in-Chief of WPS News

Baybay City, Leyte, Philippines — July 5, 2026

Happy 250th Birthday, United States of America.

Overview

This West Philippine Sea Situation Report covers the period from June 27, 2026 at 00:01 PhST to July 4, 2026 at 23:59 PhST.

The reporting picture remained consistent with sustained Chinese gray-zone pressure, especially around Bajo de Masinloc, Ayungin Shoal, Escoda Shoal, and Pag-asa Island. The available public record does not show a single major new escalation during this period. It shows continued presence, repeated monitoring, shadowing, and normalization of Chinese maritime activity inside areas claimed or used by the Philippines.

The Armed Forces of the Philippines reported 44 Chinese vessels in four key West Philippine Sea features from June 23 to June 29. That total included China Coast Guard vessels and People’s Liberation Army Navy vessels, and was higher than the 17 vessels recorded in the previous monitoring period (AFP, as cited by PNA/SunStar, 2026).

At Bajo de Masinloc, separate AIS-based analysis by the Asia Maritime Transparency Initiative showed that China Coast Guard patrols increased sharply in the first half of 2026. AMTI recorded 933 China Coast Guard ship-days at Scarborough Shoal from January 1 to June 30, 2026, nearly matching the 1,099 ship-days recorded for all of 2025 (AMTI, 2026).

Diplomatic Developments

Philippine public and local-government messaging continued to focus on the 2016 Arbitral Award. The Armed Forces of the Philippines supported moves by Cebu City and Labrador, Pangasinan to mark July 12 as West Philippine Sea Victory Day. Defense Secretary Gilberto Teodoro Jr. also supported Cebu City’s resolution, saying the award was a victory the country should embrace and enforce (Daily Tribune, 2026).

This was not only symbolic. It showed a Philippines-first effort to keep the legal ruling in public memory while China continues daily and weekly pressure at sea. The public messaging also placed the West Philippine Sea issue in civic terms, not only military terms.

Regionally, China objected to Japan-Philippines maritime boundary talks and linked that issue to new China Coast Guard patrols east of Taiwan. Reuters reported that Taiwan rejected China’s claim of jurisdiction, and that the United States, Britain, France, and Germany expressed concern over Chinese activity in that area (Reuters, 2026a; Reuters, 2026b).

Maritime Activity (Surface)

The main surface picture was continued Chinese presence across multiple West Philippine Sea features.

From June 23 to June 29, the AFP reported the following Chinese vessel presence: nine vessels at Ayungin Shoal, 27 at Bajo de Masinloc, four at Escoda Shoal, and four near Pag-asa Island. The reported Bajo de Masinloc count included 18 China Coast Guard vessels and nine PLA Navy vessels (AFP, as cited by PNA/SunStar, 2026).

During the reporting period, Philippine and United States forces conducted maritime activity near Bajo de Masinloc. DZRH reported that four Chinese vessels shadowed the activity, including a PLA Navy frigate with bow number 555 and three China Coast Guard ships. The Philippine Navy said the Chinese presence did not disrupt the activity, though worsening weather shortened planned events (DZRH, 2026).

The Philippine vessel BRP Antonio Luna detected the Chinese ships by radar during that activity. The reported exercises included division tactics, a photo exercise, and search-and-rescue simulations. The public record indicates monitoring and shadowing, not collision or direct use of force during this event (DZRH, 2026).

AMTI’s first-half 2026 tracking also showed a wider pattern at Bajo de Masinloc. China Coast Guard vessels maintained a larger patrol pattern around the shoal, while six to eight Chinese maritime militia vessels were also seen near the area. AMTI also recorded increased Philippine law-enforcement activity, including Philippine Coast Guard and BFAR presence, but at a lower level than China’s presence (AMTI, 2026).

Air Activity

No public source reviewed for this SITREP confirmed a new Chinese flare incident, air intercept, or aircraft warning event against Philippine aircraft during the June 27 to July 4 reporting window.

The broader Philippine-U.S. maritime activity cycle in June included air assets before this reporting window, including Philippine AW109, FA-50, C-208B, and Sokol aircraft, and a U.S. P-8A Poseidon. Those activities were reported as part of the June 14 to June 19 Maritime Cooperative Activity, which ended before this SITREP period (Philstar, 2026).

For this reporting period itself, public reporting centered on surface shadowing near Bajo de Masinloc and weather impacts west of Zambales, not a confirmed new air incident (DZRH, 2026).

Fisherfolk and Civilian Activity

No separate public report reviewed for this SITREP confirmed a new individual harassment incident against Filipino fisherfolk between June 27 and July 4.

However, the access environment near Bajo de Masinloc remained under pressure. DZRH reported that the Philippine-U.S. activity had planned to approach closer to the traditional fishing grounds, but remained about 50 nautical miles away because Chinese vessels were already present and weather conditions were worsening (DZRH, 2026).

AMTI’s reporting supports the same operating picture. China Coast Guard and maritime militia presence around Bajo de Masinloc remained persistent through the first half of 2026, while Philippine Coast Guard and BFAR patrol activity also increased. This means Filipino civilian access concerns remained tied to the continuing presence of Chinese state and militia-linked vessels near the shoal (AMTI, 2026).

Security Incidents

No public source reviewed for this reporting period confirmed a collision, water-cannon use, radar targeting incident, flare incident, or direct physical confrontation.

The confirmed security concern during the window was Chinese shadowing of Philippine-U.S. maritime activity near Bajo de Masinloc. The Philippine Navy reported that Chinese vessels monitored the activity, but did not disrupt it. The activity was shortened because of worsening weather and possible typhoon-related sea conditions west of Zambales (DZRH, 2026).

The larger security issue remains the normalization of repeated Chinese presence. AMTI recorded 112 days of interaction between China Coast Guard vessels and Philippine Coast Guard or BFAR vessels near Scarborough Shoal in the first half of 2026, averaging about 19 days per month (AMTI, 2026).

Weather and Sea Conditions

Weather was operationally relevant during the reporting period.

PAGASA’s July 1 final weather advisory for Tropical Cyclone Henry and the Southwest Monsoon stated that Henry and the monsoon were less likely to bring significant rainfall over the western section of Southern Luzon. The same advisory still forecast scattered rains and thunderstorms over several areas, including MIMAROPA, Western Visayas, Zambales, Bataan, Batangas, Basilan, and Tawi-Tawi (PAGASA, 2026).

Weather also affected maritime operations. DZRH reported that worsening weather and the possible development of Typhoon Henry affected sea conditions west of Zambales and led to the shortening of planned Philippine-U.S. maritime activity near Bajo de Masinloc (DZRH, 2026).

By July 3, public weather reporting described the Philippines as entering a monsoon break while another storm system, Bavi, remained east of the Philippine Area of Responsibility (ABS-CBN News, 2026).

Seismic and Geophysical Activity

Seismic activity was relevant for coastal awareness, but no public source reviewed for this SITREP tied it directly to West Philippine Sea maritime security activity.

DOST-PHIVOLCS reported an earthquake swarm offshore Bolinao, Pangasinan that began on May 27. As of the morning of June 26, PHIVOLCS had recorded 287 earthquakes in the swarm, ranging from magnitude 1.8 to 5.1 and at depths from 2 to 47 kilometers (Daily Tribune, 2026).

During the reporting period, public PHIVOLCS posts also listed offshore Bolinao events on July 4, including a magnitude 3.6 event and a magnitude 3.0 event west or northwest of Bolinao (PHIVOLCS, 2026a; PHIVOLCS, 2026b).

These events should be treated as coastal risk information, not as a confirmed maritime-security factor.

Assessment

The June 27 to July 4 reporting period fits the established pattern in the West Philippine Sea: sustained Chinese pressure, frequent China Coast Guard and PLA Navy presence, maritime militia support, and routine monitoring of Philippine and allied activity.

The week did not show a clearly documented new escalation. It showed the continuing normalization of gray-zone operations, especially around Bajo de Masinloc. The Chinese posture is persistent enough that individual events can appear routine, but the routine itself is the strategic pressure.

The Philippine response remained legal, diplomatic, maritime, and public-facing. The Armed Forces of the Philippines continued monitoring. Philippine-U.S. maritime activity continued near contested waters. Local governments and national defense officials continued public support for the 2016 Arbitral Award.

Weather was a real operational factor during the period, especially west of Zambales. Seismic activity near Bolinao remained worth tracking for coastal safety, but no public source connected it to maritime-security incidents.

References

ABS-CBN News. (2026, July 3). Philippines enters monsoon break as typhoon Bavi looms east of PAR.

Amor, L. (2026, June 29). 4 Chinese vessels shadow PH-US maritime exercise in WPS. DZRH.

Asia Maritime Transparency Initiative. (2026, July 2). Occupational risk? Chinese presence surges at Scarborough Shoal. Center for Strategic and International Studies.

Daily Tribune. (2026, June 26). Phivolcs records 287-quake swarm off Bolinao.

Daily Tribune. (2026, July 4). AFP backs Cebu, Pangasinan move to mark July 12 as WPS Victory Day.

PAGASA. (2026, July 1). Weather Advisory No. 13 Final: Tropical Cyclone and Southwest Monsoon.

Philippine News Agency. (2026, June 30). 44 Chinese vessels spotted in WPS. SunStar.

Philstar.com. (2026, June 20). Philippines, US conclude fourth maritime drills in West Philippine Sea.

PHIVOLCS. (2026a, July 4). Earthquake information: Magnitude 3.6 offshore Bolinao, Pangasinan.

PHIVOLCS. (2026b, July 4). Earthquake information: Magnitude 3.0 offshore Bolinao, Pangasinan.

Reuters. (2026a, July 1). Taiwan ships should ignore boarding requests from China Coast Guard, Taipei says.

Reuters. (2026b, July 4). China launches coast guard patrol off Taiwan, angering Taipei.

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